ADVANCED EMBEDDED MONITORING SYSTEM FOR ELECTROMAGNETIC RADIATION
|
|
- Sophia Nichols
- 5 years ago
- Views:
Transcription
1 98 Chapter-5 ADVANCED EMBEDDED MONITORING SYSTEM FOR ELECTROMAGNETIC RADIATION
2 99 CHAPTER-5 Chapter 5: ADVANCED EMBEDDED MONITORING SYSTEM FOR ELECTROMAGNETIC RADIATION S.No Name of the Sub-Title Page No. 5.1 Advanced Embedded Electromagnetic Radiation 99 Monitoring System RF Estimation of Signal Strength Using Si ARM Controller Data Transfer Module Display Section GSM Module Chapter Summary 123
3 ADVANCED EMBEDDED MONITORING SYSTEM FOR ELECTROMAGNETIC RADIATION This Chapter describes an embedded monitoring system, which is a combination of both hardware (Embedded RF Unit) and software (Visual Basic 2010) to estimate the radiation power level. 5.1 ADVANCED EMBEDDED ELECTROMAGNETIC RADIATION MONITORING SYSTEM The primary objective of this research work is to monitor the electromagnetic radiations that are radiated by cellular base station antennas as well as mobile units and other RF sources. A system called Advanced Embedded Electromagnetic Radiation Monitoring System (AEERMS) is proposed to monitor this electromagnetic radiation and intimate to the concerned authorities, if the radiation level is above the safety limits prescribed by FCC and ICNRP. The Advanced Embedded Electromagnetic Radiation Monitoring System (AEERMS) has been designed for easy detection of radiation levels at a given point in the cellular base station premises (residential areas or offices). It is a broadband instrument and accurately detects the cumulative radiation in the range of 30 MHZ to 1700MHZ in one band and 1700 MHz to 2.5 GHz in another band, which covers the frequencies used by most modern communication systems (CDMA, GSM1800, 3G and WI-FI/WLAN/BLUETOOTH frequency bands) that are encountered in our daily life. By using this system, the radiation
4 101 levels can be measured corresponding to each frequency of a single network. Also, the total radiated power for all the frequencies of different networks can be measured using this AEERMS. If the radiation level is more than -30 dbm, then the monitoring system detects it as a danger level of radiation and it sends short messages to the concerned authorities informing about the hazardous radiation from the particular frequency band at the particular place. Figure 5.1 Block Diagram of advanced embedded electromagnetic radiation monitoring system The block diagram of advanced embedded electromagnetic radiation monitoring system is shown in Figure 5.1. The receiving antenna is capable of receiving the signals with frequency in the range of 80 MHz and 2.5 GHz. AEERMS receives the center frequency and span values from the user using the display section. The selected
5 102 center frequency and span in the display section is fed to the ARM controller through USB cable. The ARM controller which is loaded with fractional-n algorithm, will convert the selected center frequency and span into its corresponding digital value and is given to the RF 2052 [74]. The RF 2052 will tune the wide band input signal to the band of desired frequencies and sends this tuned signals to Si 4362 [78] to estimate the signal strength. The Si 4362 converts the estimated radiation levels into digital format and the digital data is sent to the ARM controller [75, 76]. The ARM controller compares the received power level from Si 4362 with the FCC standard power level. If the power level is more than that of the FCC standards, AEERMS will treat it as dangerous level and the GSM Module section will be activated to send a message to the corresponding authorities. AEERMS. The Figure 5.2 shows the prototype hardware components of Figure 5.2 Prototype Hardware of AEERMS
6 103 The different blocks in this system are: 1. RF Si ARM 4. Data Transfer Modules (CP2102, USB) 5. GSM Module 6. Display RF 2052 Figure 5.3 Functional Block Diagram of RF 2052 The RF2052 IC is internally connected to an antenna. The RF2052 is a low power, high performance and wideband RF frequency conversion chip with integrated local oscillator (LO) generation and RF
7 104 mixer. The RF synthesizer includes an integrated fractional-n phase locked loop with voltage controlled oscillators (VCOs) and dividers to produce a low-phase noise LO signal with a very fine frequency resolution. The buffered LO output drives the built-in RF mixer which converts the signal into the required frequency band. The mixer bias current can be programmed dependent on the required performance and available supply current. The LO generation blocks have been designed to continuously cover the frequency range from 30 MHz to 2500MHz. The RF mixer is a very broad band and operates from 30MHz to 2500MHz at the input and output, enabling both up and down conversion. An external crystal of frequency between 10MHz and 52MHz or an external reference source of frequency between 10MHz and 104MHz can be used with the RF2052 to accommodate a variety of reference frequency options [70]. For the input port, the input frequency should always be about 30 MHz; the matching circuit will be tuned to work well at 30 MHz to 2.5GHZ. To get the best performance from the RF2052 mixer, the matching circuits for the input and output ports should be tuned for the specific frequency required ranges for a particular application. Since the widest range possible is desired for the final design, the simplest wideband matching circuits for the output port was chosen. The RF2051 chip is capable of synthesizing a local oscillator frequency between 30 MHz to 2500 MHz, the RF mixer is also integrated into the chip that can mix an RF signal between 30 MHz to
8 GHz with the local oscillator. The RF2051 is almost identical to the RF2052 except that it has two mixers. An external crystal of between 10MHz to 52MHz or an external reference source of between 10 MHz to 104 MHz can be used with the RF2052 to accommodate a variety of reference frequency options. The programmed register (R) in RF2052 section is required to capture the frequency values with internal circuitry, and then the frequency values are sent to the frequency synthesizer section where the Phased Locked loop (PLL) is locked to required frequency. It sends the obtained frequency values to the mixer. The mixer mixes the required frequency and antenna frequency and it down convert by four and the resultant signal is fed to SI4362 section. Voltage Controlled Oscillator (VCO) The VCO core in the RF2052 consists of three VCOs in conjunction with the integrated 2/4 LO divider, that covers the LO range from 300MHz to 2400MHz. VCO 1, 2, and 3 are selected using the Phase locked loop (PLL) PLL2x0:P2_VCOSEL control word. Each VCO has 128 overlapping bands to achieve an acceptable VCO gain and hence a good phase noise performance across the whole tuning range. The chip automatically selects the correct VCO band ( VCO coarse tuning ) to generate the desired LO frequency based on the values programmed into the PLL2 registers bank.
9 106 Once the band has been selected, the PLL will lock onto the correct frequency. During the band selection process, fixed capacitance elements are progressively connected to the VCO resonant circuit until the VCO oscillates approximately at the correct frequency. For applications where the synthesizer is always ON and the LO frequency is fixed, the synthesizer will maintain lock over a +/-60 C temperature range. Fractional-N PLL To control the three VCOs, the IC contains a charge-pump based fractional-n phase locked loop (PLL). The PLL is intended to use a reference frequency signal of 10MHz to 104MHz. The PLL will lock the VCO to the frequency FVCO according to [70]: FVCO=NEFF*FOSC/R Where NEFF = Programmed fractional N divider value FOSC= Reference input frequency R= Programmed R divider value (1 to 7). The N divider is a fractional divider, containing a dual-modulus pre-scalar and a digitally spur-compensated fractional sequence generator to allow fine frequency steps. The N divider is programmed using the N and NUM bits as follows: first determine the desired, effective N divider value, NEFF, NEFF = FVCO *R / FOSC
10 107 N (9:0) should be set to the integer part of NEFF.NUM should be set to the fractional part of NEFF multiplied by 2^24= Example: VCO1 operating at 2220MHz, 23.92MHz reference frequency, the desired effective divider value is: NEFF = FVCO *R / FOSC =2220 *1 / 23.92= The N value is set to 92, which is the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2 24 : NUM= * 2 24 =13,578,884. Converting N and NUM into binary results in the following: N= NUM= So the registers would be programmed: P2_N= P2_NUM_MSB= P2_NUM_LSB= The maximum NEFF is 511, and the minimum NEFF is 15, when in fractional mode. The minimum step size is FOSC/R*2 24. Thus for a 23.92MHz reference, the frequency step size would be 1.4 Hz. The minimum reference frequency that could be used to program a frequency of 2400 MHz (using VCO1) is 2400/511, (= MHz) For VCO frequency 1800 MHz: FVCO =1800 MHz FOSC =23.92 MHz NEFF = FVCO *R / FOSC = 1800 *1 / 23.92
11 108 = The N value is set to 75, the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N= P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 1830 MHz FVCO =1830 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC =1830 *1 / = The N value is set to 76, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24 NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N=
12 109 P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 1860 MHz FVCO =1860 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC =1860 *1 / = The N value is set to 77, equals to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N= P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 1900 MHz: FVCO =1900 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC =1900 *1 / =
13 110 The N value is set to 79, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following: N= NUM= So the registers would be programmed: P2_N= P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 1930 MHz: FVCO =1930 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC=1930 *1 / = The N value is set to 80, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24 NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N=
14 111 P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 1960 MHz: FVCO =1960 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC=1960 *1 / = The N value is set to 81, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N= P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 2.1 GHz: FVCO =2100 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC =2100 *1 / =
15 112 The N value is set to 87, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following N= NUM= So the registers would be programmed P2_N= P2_NUM_MSB= P2_NUM_LSB= For VCO frequency 2.56 GHz FVCO =2560 MHz FOSC =23.92 MHz NEFF=FVCO *R / FOSC =2560 *1 / = The N value is set to 107, equal to the integer part of NEFF, and the NUM value is set to the fractional portion of NEFF multiplied by 2^24: NUM= * 2^24= Converting N and NUM into binary results in the following: N= NUM=
16 113 So the registers would be programmed: P2_N= P2_NUM_MSB= P2_NUM_LSB= Figure 5.4 Data Format send to RF2052 from ARM Controller
17 114 Figure 5.4 shows the data transmitted to RF2052 from ARM Controller. This hexadecimal numbers are computed values of N and NUM (integer and fractional value multiplied by 2 24, of NEFF) for the different frequencies. In the RF2052, these values are decoded to get the frequency value to be tuned Estimation of Signal Strength using Si 4362 The Si4362 is a high performance, low current, wireless ISM receiver that covers major sub-ghz bands. The wide operating voltage range of V and low current consumption make the Si4362 an ideal solution for battery powered applications. This device uses a single-conversion mixer to down convert the 2/4-level FSK/GFSK or OOK/ASK modulated receive signals to a low intermediate frequency (IF). Following a programmable gain amplifier (PGA) the signal is converted to the digital domain by a high performance ΔΣ ADC allowing filtering, demodulation, slicing, and packet handling to be performed in the built-in DSP increasing the receiver s performance and flexibility versus analog based architectures. The demodulated signal is output to the system ARM processor through a programmable GPIO or via the standard Serial periparal interface(spi) bus by reading the 64-byte RX FIFO. The computed signal strength values and the corresponding frequency values using Si4362 are sending to the ARM Processor using SPI bus. A sample data format received by ARM controller from
18 115 Si4362 is shown in Figure.5.5. The signal strength and the frequency values are coded in hexadecimal number system. Figue.5.5 Signal strength and frequency values (coded in hexadecimal system) received by ARM Controller from Si4362
19 ARM Controller In the proposed system, ARM 32-bit (LPC2148) controller is used. The LPC2148 is an ARM based microcontroller for embedded applications requiring a high level of integration and low power dissipation. The ARM is a next generation core that offers system enhancements such as modernized debug features and a higher level of support block integration. The ARM offers many new features, including a powerful instruction set, low interrupt latency, hardware divide, interruptible/continual multiple load and store instructions, automatic state save and restore for interrupts, tightly integrated interrupt controller with wake-up interrupt controller, and multiple core buses capable of simultaneous accesses. The ARM Central Processing Unit (CPU) incorporates a 3-stage pipeline and uses Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals. This microcontroller has a clock speed up to 120 MHz which is sufficient for real time and industrial applications. The LPC2148 contains up to 512-Kbyte of on-chip flash memory. A new two-port flash accelerator maximizes performance for use with the two fast AHB-Lite buses. Advanced Microcontroller Bus Architecture (AMBA) and Advanced High Performance Bus (AHB) are used for sending and receiving data. It supports low power on-chip communication. The LPC2148 contain a total of 64-kbyte on-chip static RAM memory. This includes the main 32-Kbyte SRAM, accessible by the
20 117 CPU and DMA controller on a higher-speed bus, and two additional 16 Kbyte each SRAM blocks situated on a separate slave port on the AHB multilayer matrix. This architecture allows CPU and DMA accesses to be spread over three separate RAMs that can be accessed simultaneously. The LPC2148 has a Memory Protection Unit (MPU) which can be used to improve the reliability of an embedded system by protecting critical data within the user application. In the proposed work, this ARM controller is used to, 1. Get the values of centre frequency and frequency span from the Display section the display section provides the interface between the user and the system. When the user enters a centre frequency and frequency span, then these values are received by the ARM controller to process the user request. 2. Compute the tuning frequency value using fractional N algorithm, and will send this to RF2052 from the centre frequency and frequency span values needed by the user, the ARM computes the frequency to which the received RF signal is to be tuned, using fractional N algorithm. The fractional N algorithm results in N and NUM (corresponding to integer and floating values of NEFF) values which are the coded values to represent the tuning frequency value. The computed N and NUM values (computations are presented in Figure 5.4 fractional N PLL) will be sent to RF2052 which can determine the tuning frequency from the reverse operation of fractional N algorithm, from N and NUM (Figure 5.4).
21 Receive the signal strength and frequency values from the Si4362 and send the same details to display section the Si4362 estimates the strength of the signal fed by RF2052, and sends the signal strength values coded in digital format (Figure.5.5) to the ARM controller. 1. Compare the received signal strength values with the safety radiation standards prescribed by the FCC, and it transmits the same data to the display section Data Transfer Module The data transfer from the ARM controller and the display section and vice versa, by using CP2102. CP 2102 The CP2102 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The CP2102 includes a USB 2.0 full speed function controller [77], USB transceiver, oscillator, EEPROM or EPROM, and asynchronous serial data bus (UART) with full modem control signals in a compact 5 x 5 mm QFN-28 package. The Universal Serial Bus function controller in the CP2102/9 is a USB 2.0 compliant full-speed device with integrated transceiver and on-chip matching and pull-up resistors. The USB function controller manages all data transfers between the USB and the UART as well as
22 119 command requests generated by the USB host controller and commands for controlling the function of the UART. The CP2102 is, a bridge connecting UART of the microcontroller and USB connector of PC. The device connects to the universal asynchronous receive, transmit (UART) of the microcontroller and the UART signals are converted to conform to the USB2 standard and transmitted through a Type B USB connector interfaced with PC Display section The display section completely related to CDEEC-RF PC Client (Visual Basic 2010) software. The CP2102 through USB cable is connected to the computer system. In computer system virtual communication port is connected to the USB through which computer system accesses the data.
23 120 Figure 5.6 CDEEC-RF PC Client (visual basic 2010) Once the Advanced embedded electromagnetic radiation monitoring system is connected, the data is accessed through serial communication port with a band rate of 50 kbps. The accessed data is fed to visual basic software which process the received data to interpret the data as graphs plotted between the signal strength and the frequency. The display module is sectioned into the following: (a) Mode Selection section (b) Frequency Selector section (c) RF Live Data
24 121 (a) Mode Selection section The mode selection is a part of the display section to select the running time data and hold time data. The running time selection is to select Real time/average/max peak/minimum modes of data. 1. In the real time mode, the system plots the graph of currently receiving signal strength versus the frequency selected by the user. 2. The system presents the graphical interpretation of the computed average value of the signal strength over some sort of time as a function frequency of operation. 3. The maximum or peak value of the received signal strength in a fixed duration of time, will be displayed as a function of frequency requested by the user. 4. The system displays the minimum level of signal strength observed over a fixed time, as a function of frequency needed by the user. In this manner, the mode selection of running time data displays the appropriate graph of signal strength and frequency. By selecting the hold time data mode, the running display of graphical representation of radiation will be paused.
25 122 (b) Frequency Selector section The frequency selector section is the crucial part of the AEERMS. In this section, the user is allowed to request the desired central frequency and the frequency span, to measure the radiation level at that particular frequency. On providing the centre frequency and frequency span, the system will automatically selects the starting and ending frequencies. For example, if the centre frequency and frequency span are selected as 1800 MHz and 40 MHz respectively, the system computes the starting frequency as 1780 MHz (= /2) and the ending frequency as 1820 MHz (= /2). These frequency values are sent to RF2052 via ARM controller using fractional N algorithm, to tune the receiving signal to be in this range. The signal strength and the corresponding frequency values are estimated using the IC Si4362 and send these values to ARM controller. The ARM controllers send this information to display section via CP2102 and USB to process further. (c) RF-Live Data The signal strength and frequency values sent from ARM controller, will be stored in the excel files. The RF-LIVE Data section interprets this data graphically by plotting the running graph between the signal strength values in dbm (Y axis) and the selected frequency in MHz (X axis). Also, it is capable of plotting the total radiated power (dbm) in the complete frequency band (MHz) of the antenna.
26 GSM Module The GSM module is connected to the system through virtual serial communication in similar to ARM controller interfacing with PC. The GSM module consists of a subscriber identity module (SIM) to facilitate sending Short Message Service (SMS) from this unit to the concerned officers informing danger level of radiation [79]. The ARM controller continuously compares the received signal strength values from the Si4363, with the safety radiation limits prescribed by the FCC. If it founds the received signal strength value exceeds the safety limit, it will automatically activate the GSM module to send an SMS to the concern authorities about the hazardous level of radiation of a particular frequency at a particular place. 5.2 CHAPTER SUMMARY In this chapter, a detailed discussion about the each component of the designed Advanced Embedded Electromagnetic Radiation Monitoring System (AEERMS) is carried out. Also, explained clearly the functionality of the proposed system. Results obtained by using this device will be discussed in the next chapter.
FEATURES DESCRIPTION BENEFITS APPLICATIONS. Preliminary PT4501 Sub-1 GHz Wideband FSK Transceiver
Preliminary PT4501 Sub-1 GHz Wideband FSK Transceiver DESCRIPTION The PT4501 is a highly integrated wideband FSK multi-channel half-duplex transceiver operating in sub-1 GHz license-free ISM bands. The
More informationVC7300-Series Product Brief
VC7300-Series Product Brief Version: 1.0 Release Date: Jan 16, 2019 Specifications are subject to change without notice. 2018 Vertexcom Technologies, Inc. This document contains information that is proprietary
More informationRF4432 wireless transceiver module
1. Description www.nicerf.com RF4432 RF4432 wireless transceiver module RF4432 adopts Silicon Lab Si4432 RF chip, which is a highly integrated wireless ISM band transceiver. The features of high sensitivity
More informationSynthNV - Signal Generator / Power Detector Combo
SynthNV - Signal Generator / Power Detector Combo The Windfreak SynthNV is a 34.4MHz to 4.4GHz software tunable RF signal generator controlled and powered by a PC running Windows XP, Windows 7, or Android
More informationCortex-M3 based Prepaid System with Electricity Theft Control
Research Inventy: International Journal of Engineering And Science Vol.6, Issue 4 (April 2016), PP -139-146 Issn (e): 2278-4721, Issn (p):2319-6483, www.researchinventy.com Cortex-M3 based Prepaid System
More informationPreliminary GHz Transceiver-µController-Module. Applications PRODUCT SPECIFICATION FEATURES MICROCONTROLLER MHz
PRODUCT SPECIFICATION 2.4 2.5 GHz e Applications 6 : 2 " 2! 2 2 + 2 7 + + Alarm and Security Systems Video Automotive Home Automation Keyless entry Wireless Handsfree Remote Control Surveillance Wireless
More informationKeywords: GPS, receiver, GPS receiver, MAX2769, 2769, 1575MHz, Integrated GPS Receiver, Global Positioning System
Maxim > Design Support > Technical Documents > User Guides > APP 3910 Keywords: GPS, receiver, GPS receiver, MAX2769, 2769, 1575MHz, Integrated GPS Receiver, Global Positioning System USER GUIDE 3910 User's
More informationMotor Control using NXP s LPC2900
Motor Control using NXP s LPC2900 Agenda LPC2900 Overview and Development tools Control of BLDC Motors using the LPC2900 CPU Load of BLDCM and PMSM Enhancing performance LPC2900 Demo BLDC motor 2 LPC2900
More informationGDM1101: CMOS Single-Chip Bluetooth Integrated Radio/Baseband IC
GDM1101: CMOS Single-Chip Bluetooth Integrated Radio/Baseband IC General Descriptions The GDM1101 is one of several Bluetooth chips offered by GCT. It is a CMOS single-chip Bluetooth solution with integrated
More informationDNT24MCA DNT24MPA. Low Cost 2.4 GHz FHSS Transceiver Modules with I/O. DNT24MCA/MPA Absolute Maximum Ratings. DNT24MCA/MPA Electrical Characteristics
- 2.4 GHz Frequency Hopping Spread Spectrum Transceivers - Direct Peer-to-peer Low Latency Communication - Transmitter RF Power Configurable - 10 or 63 mw - Built-in Chip Antenna - 250 kbps RF Data Rate
More informationIn this lecture, we will look at how different electronic modules communicate with each other. We will consider the following topics:
In this lecture, we will look at how different electronic modules communicate with each other. We will consider the following topics: Links between Digital and Analogue Serial vs Parallel links Flow control
More informationA Solar-Powered Wireless Data Acquisition Network
A Solar-Powered Wireless Data Acquisition Network E90: Senior Design Project Proposal Authors: Brian Park Simeon Realov Advisor: Prof. Erik Cheever Abstract We are proposing to design and implement a solar-powered
More information32-bit ARM Cortex-M0, Cortex-M3 and Cortex-M4F microcontrollers
-bit ARM Cortex-, Cortex- and Cortex-MF microcontrollers Energy, gas, water and smart metering Alarm and security systems Health and fitness applications Industrial and home automation Smart accessories
More informationCatalog
Catalog 1. Description... - 3-2. Features... - 3-3. Application... - 3-4. Electrical specifications...- 4-5. Schematic... - 4-6. Pin Configuration... - 5-7. Antenna... - 6-8. Mechanical Dimension(Unit:
More informationEITF40 Digital and Analogue Projects - GNSS Tracker 2.4
EITF40 Digital and Analogue Projects - GNSS Tracker 2.4 Magnus Wasting 26 February 2018 Abstract In this report a mobile global navigation satellite system with SMS and alarm functionality is constructed.
More informationReceiver Architecture
Receiver Architecture Receiver basics Channel selection why not at RF? BPF first or LNA first? Direct digitization of RF signal Receiver architectures Sub-sampling receiver noise problem Heterodyne receiver
More informationOn the Design of Software and Hardware for a WSN Transmitter
16th Annual Symposium of the IEEE/CVT, Nov. 19, 2009, Louvain-La-Neuve, Belgium 1 On the Design of Software and Hardware for a WSN Transmitter Jo Verhaevert, Frank Vanheel and Patrick Van Torre University
More informationAnalysis of Phase Noise Profile of a 1.1 GHz Phase-locked Loop
Analysis of Phase Noise Profile of a 1.1 GHz Phase-locked Loop J. Handique, Member, IAENG and T. Bezboruah, Member, IAENG 1 Abstract We analyzed the phase noise of a 1.1 GHz phaselocked loop system for
More informationDesigning with STM32F3x
Designing with STM32F3x Course Description Designing with STM32F3x is a 3 days ST official course. The course provides all necessary theoretical and practical know-how for start developing platforms based
More informationWavedancer A new ultra low power ISM band transceiver RFIC
Wavedancer 400 - A new ultra low power ISM band transceiver RFIC R.W.S. Harrison, Dr. M. Hickson Roke Manor Research Ltd, Old Salisbury Lane, Romsey, Hampshire, SO51 0ZN. e-mail: roscoe.harrison@roke.co.uk
More informationECEN620: Network Theory Broadband Circuit Design Fall 2014
ECEN60: Network Theory Broadband Circuit Design Fall 014 Lecture 13: Frequency Synthesizer Examples Sam Palermo Analog & Mixed-Signal Center Texas A&M University Agenda Frequency Synthesizer Examples Design
More information802.11g Wireless Sensor Network Modules
RFMProducts are now Murata Products Small Size, Integral Antenna, Light Weight, Low Cost 7.5 µa Sleep Current Supports Battery Operation Timer and Event Triggered Auto-reporting Capability Analog, Digital,
More informationRFID Door Unlocking System
RFID Door Unlocking System Evan VanMersbergen Project Description ETEC 471 Professor Todd Morton December 7, 2005-1- Introduction In this age of rapid technological advancement, radio frequency (or RF)
More informationRF4463F30 High Power wireless transceiver module
RF4463F30 High Power wireless transceiver module 1. Description RF4463F30 adopts Silicon Lab Si4463 RF chip, which is a highly integrated wireless ISM band transceiver chip. Extremely high receive sensitivity
More informationRadio. ontrolli. ISM - Low Power Radio Devices. Short Form. Wireless Modules and Wireless Network Solutions. ASK/FSK Radio Modules
Radio and Wireless Network Solutions Rev. 1.5 ASKFSK Radio Modules IOT Modules WIFI Modules LORA Modules Bluetooth Modules Transceiver Modules Telemetry Security Systems Industrial Automation Home & Building
More informationUser Manual WHM520V. 1. Introduction. 2. Feature
User Manual 1 Introduction The module is wireless audio module based on AV5100 The AV5100 is 5GHz wireless audio SoC (System-on-chip), optimized for building point to multi-point digital wireless audio
More informationSNIOT702 Specification. Version number:v 1.0.1
Version number:v 1.0.1 Catelog 1 Product introduction... 1 1.1 Product introduction... 1 1.2 Product application... 1 1.3 Main characteristics... 2 1.4 Product advantage... 3 2 Technical specifications...
More informationGetting started with OPENCORE NMR spectrometer. --- Installation and connection ---
Getting started with OPENCORE NMR spectrometer --- Installation and connection --- Assembly USB The USB module is bus-powered. That is, DC power is provided by the personal computer via the USB cable.
More informationTHEORY OF OPERATION. TM308EUL for Cobra Nov 06,2006
THEORY OF OPERATION TM308EUL for Cobra Nov 06,2006 This PLL controlled VHF marine mobile transceiver provides an accurate and stable multi-channel operation. The transceiver consists of 15 main sections
More informationRDA1845 SINGLE CHIP TRANSCEIVER FOR WALKIE TALKIE. 1. General Description. Rev.1.0 Feb.2008
RDA1845 SINGLE CHIP TRANSCEIVER FOR WALKIE TALKIE Rev.1.0 Feb.2008 1. General Description The RDA1845 is a single-chip transceiver for Walkie Talkie with fully integrated synthesizer, IF selectivity and
More informationAC LAB ECE-D ecestudy.wordpress.com
PART B EXPERIMENT NO: 1 AIM: PULSE AMPLITUDE MODULATION (PAM) & DEMODULATION DATE: To study Pulse Amplitude modulation and demodulation process with relevant waveforms. APPARATUS: 1. Pulse amplitude modulation
More informationSPECIAL SPECIFICATION 6744 Spread Spectrum Radio
2004 Specifications CSJ 0924-06-244 SPECIAL SPECIFICATION 6744 Spread Spectrum Radio 1. Description. Furnish and install spread spectrum radio system. 2. Materials. Supply complete manufacturer specifications
More informationFully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP)
Fully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP) Hyemin Yang 1, Jongmoon Kim 2, Franklin Bien 3, and Jongsoo Lee 1a) 1 School of Information and Communications,
More informationDNT90MCA DNT90MPA. Low Cost 900 MHz FHSS Transceiver Modules with I/O
- 900 MHz Frequency Hopping Spread Spectrum Transceivers - Direct Peer-to-peer Low Latency Communication - Transmitter Power Configurable to 40 or 158 mw - Built-in 0 dbi Chip Antenna - 100 kbps RF Data
More informationCortex-M3 based Prepaid System with Electricity Theft Control
RESEARCH ARTICLE OPEN ACCESS Cortex-M3 based Prepaid System with Electricity Theft Control Sudhakar Ajmera 1, Abdul Subhani Shaik 2 1 M.Tech, Dept of ECE, CMR College of Engineering & Technology(Autonomous),
More informationRF NiceRF Wireless Technology Co., Ltd. Rev
- 1 - Catalog 1. Description...- 3-2. Features...- 3-3. Application...- 3-4. Electrical Specifications...- 4-5. Schematic...- 4-6. Pin Configuration...- 5-7. Antenna... - 6-8. Mechanical dimensions(unit:
More informationSoftware Radio, GNU Radio, and the USRP Product Family
Software Radio, GNU Radio, and the USRP Product Family Open Hardware for Software Radio Matt Ettus, matt@ettus.com Software Radio Simple, general-purpose hardware Do as much as possible in software Everyone's
More informationMTS2500 Synthesizer Pinout and Functions
MTS2500 Synthesizer Pinout and Functions This document describes the operating features, software interface information and pin-out of the high performance MTS2500 series of frequency synthesizers, from
More informationChapter IX Using Calibration and Temperature Compensation to improve RF Power Detector Accuracy By Carlos Calvo and Anthony Mazzei
Chapter IX Using Calibration and Temperature Compensation to improve RF Power Detector Accuracy By Carlos Calvo and Anthony Mazzei Introduction Accurate RF power management is a critical issue in modern
More informationAN4: Application Note
: Introduction The PE3291 fractional-n PLL is a dual VHF/UHF integrated frequency synthesizer with fractional ratios of 2, 4, 8, 16 and 32. Its low power, low phase noise and low spur content make the
More informationCharacteristic Sym Notes Minimum Typical Maximum Units Operating Frequency Range MHz. RF Chip Rate 11 Mcps RF Data Rates 1, 2, 5.
RFM Products are now Murata products. Small Size, Light Weight, Low Cost 7.5 µa Sleep Current Supports Battery Operation Timer and Event Triggered Auto-reporting Capability Analog, Digital, Serial and
More informationStensat Transmitter Module
Stensat Transmitter Module Stensat Group LLC Introduction The Stensat Transmitter Module is an RF subsystem designed for applications where a low-cost low-power radio link is required. The Transmitter
More informationEmbedded Robotics. Software Development & Education Center
Software Development & Education Center Embedded Robotics Robotics Development with ARM µp INTRODUCTION TO ROBOTICS Types of robots Legged robots Mobile robots Autonomous robots Manual robots Robotic arm
More informationImaging serial interface ROM
Page 1 of 6 ( 3 of 32 ) United States Patent Application 20070024904 Kind Code A1 Baer; Richard L. ; et al. February 1, 2007 Imaging serial interface ROM Abstract Imaging serial interface ROM (ISIROM).
More informationDual-Frequency GNSS Front-End ASIC Design
Dual-Frequency GNSS Front-End ASIC Design Ed. 01 15/06/11 In the last years Acorde has been involved in the design of ASIC prototypes for several EU-funded projects in the fields of FM-UWB communications
More informationSpecifications and Interfaces
Specifications and Interfaces Crimson TNG is a wide band, high gain, direct conversion quadrature transceiver and signal processing platform. Using analogue and digital conversion, it is capable of processing
More informationBits to Antenna and Back
The World Leader in High Performance Signal Processing Solutions Bits to Antenna and Back June 2012 Larry Hawkins ADL5324 400 4000 MHz Broadband ½ W RF Driver Amplifier KEY SPECIFICATIONS (5 V) Frequency
More informationRF205x Frequency Synthesizer User Guide
RF205x Frequency Synthesizer User Guide RFMD Multi-Market Products Group 1 of 20 REVISION HISTORY Version Date Description of change(s) Author(s) Version 0.1 March 2008 Initial Draft. CRS Version 1.0 June
More information2.0 Discussion: 2.1 Approach:
2.0 Discussion: 2.1 Approach: The design for a Power Monitor and Data Logging System is comprised of two major components: the Power Meter and the Data Logger. The Power Meter is the package that plugs
More informationJUMA-TRX2 DDS / Control Board description OH2NLT
JUMA-TRX2 DDS / Control Board description OH2NLT 22.08.2007 General Key functions of the JUMA-TRX2 DDS / Control board are: - provide user interface functions with LCD display, buttons, potentiometers
More informationTMS320F241 DSP Boards for Power-electronics Applications
TMS320F241 DSP Boards for Power-electronics Applications Kittiphan Techakittiroj, Narong Aphiratsakun, Wuttikorn Threevithayanon and Soemoe Nyun Faculty of Engineering, Assumption University Bangkok, Thailand
More informationResearch and Development Activities in RF and Analog IC Design. RFIC Building Blocks. Single-Chip Transceiver Systems (I) Howard Luong
Research and Development Activities in RF and Analog IC Design Howard Luong Analog Research Laboratory Department of Electrical and Electronic Engineering Hong Kong University of Science and Technology
More informationSIMPLE Raspberry Pi VHF TRANSCEIVER & TNC
Simple Circuits Inc. SIMPLE Raspberry Pi VHF TRANSCEIVER & TNC 2 Meter Transceiver & TNC Simple Circuits Inc. 2015-2018 4/1/2018 Simple Raspberry Pi VHF Transceiver and TNC Introduction: This document
More informationDASL 120 Introduction to Microcontrollers
DASL 120 Introduction to Microcontrollers Lecture 2 Introduction to 8-bit Microcontrollers Introduction to 8-bit Microcontrollers Introduction to 8-bit Microcontrollers Introduction to Atmel Atmega328
More informationPRODUCT APPLICATION NOTES
Extending the HMC189MS8 Passive Frequency Doubler Operating Range with External Matching General Description The HMC189MS8 is a miniature passive frequency doubler in a plastic 8-lead MSOP package. The
More informationMulti Frequency RFID Read Writer System
Multi Frequency RFID Read Writer System Uppala Sunitha 1, B Rama Murthy 2, P Thimmaiah 3, K Tanveer Alam 1 PhD Scholar, Department of Electronics, Sri Krishnadevaraya University, Anantapur, A.P, India
More informationFLEXIBLE RADIO FREQUENCY HARDWARE FOR A SOFTWARE DEFINABLE CHANNEL EMULATOR
FLEXIBLE RADIO FREQUENCY HARDWARE FOR A SOFTWARE DEFINABLE CHANNEL EMULATOR Robert Langwieser 1, Michael Fischer 1, Arpad L. Scholtz 1, Markus Rupp 1, Gerhard Humer 2 1 Vienna University of Technology,
More informationMaintenance Manual. MTD SERIES 900 MHz, 10-WATT, DATA ONLY MOBILE RADIO. Mobile Communications LBI TABLE OF CONTENTS
Mobile Communications MTD SERIES 900 MHz, 10-WATT, DATA ONLY MOBILE RADIO TABLE OF CONTENTS RF BOARD............................... LBI-38545 AUDIO BOARD............................ LBI-38546 LOGIC BOARD............................
More informationJEPPIAAR SRR Engineering College Padur, Ch
An Automated Non-Invasive Blood Glucose Estimator and Infiltrator M. Florence Silvia 1, K. Saran 2, G. Venkata Prasad 3, John Fermin 4 1 Asst. Prof, 2, 3, 4 Student, Department of Electronics and Communication
More informationINTRODUCTION. What is the LSN50
INTRODUCTION Dragino LoRa Sensor Node Dragino LoRa Sensor Node What is the LSN50 LSN50 is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by Li/SOCl2 battery for long term use
More information433MHz front-end with the SA601 or SA620
433MHz front-end with the SA60 or SA620 AN9502 Author: Rob Bouwer ABSTRACT Although designed for GHz, the SA60 and SA620 can also be used in the 433MHz ISM band. The SA60 performs amplification of the
More informationThe Development and Application of High Compression Ratio Methanol Engine ECU
National Conference on Information Technology and Computer Science (CITCS 2012) The Development and Application of High Compression Ratio Methanol Engine ECU Hong Bin, 15922184696 hongbinlqyun@163.com
More informationImproving the ADF5355 synthesizer board (Version with Touch-Display)
Improving the ADF5355 synthesizer board (Version with Touch-Display) Hello, Matthias, DD1US, March 24 th 2018, rev 1.1 Searching for a way to extend the frequency range of my test equipment I decided to
More information26.8: A 1.9GHz Single-Chip CMOS PHS Cellphone
26.8: A 1.9GHz Single-Chip CMOS PHS Cellphone William W. Si, Srenik Mehta, Hirad Samavati, Manolis Terrovitis, Michael Mack, KeithOnodera, SteveJen, Susan Luschas, Justin Hwang, SuniMendis, DavidSu, BruceWooley
More informationLab 3: Embedded Systems
THE PENNSYLVANIA STATE UNIVERSITY EE 3OOW SECTION 3 FALL 2015 THE DREAM TEAM Lab 3: Embedded Systems William Stranburg, Sean Solley, Sairam Kripasagar Table of Contents Introduction... 3 Rationale... 3
More informationDAB+ Voice Break-In Solution
Product Brief DAB+ Voice Break-In Solution The Voice Break-In (VBI) solution is a highly integrated, hardware based repeater and content replacement system for DAB/DAB+. VBI s are in-tunnel/in-building
More informationDesign and Development of Smart. Harmonic Analyzer
Chapter - 4 Design and Development of Smart Harmonic Analyzer 4.1 Introduction: There is steady evolution in the field of generation, distribution, and use of electricity since many years. New methods
More informationThe Mote Revolution: Low Power Wireless Sensor Network Devices
The Mote Revolution: Low Power Wireless Sensor Network Devices University of California, Berkeley Joseph Polastre Robert Szewczyk Cory Sharp David Culler The Mote Revolution: Low Power Wireless Sensor
More informationSession 3. CMOS RF IC Design Principles
Session 3 CMOS RF IC Design Principles Session Delivered by: D. Varun 1 Session Topics Standards RF wireless communications Multi standard RF transceivers RF front end architectures Frequency down conversion
More informationFaculty of Information Engineering & Technology. The Communications Department. Course: Advanced Communication Lab [COMM 1005] Lab 6.
Faculty of Information Engineering & Technology The Communications Department Course: Advanced Communication Lab [COMM 1005] Lab 6.0 NI USRP 1 TABLE OF CONTENTS 2 Summary... 2 3 Background:... 3 Software
More informationIndex Terms IR communication; MSP430; TFDU4101; Pre setter
Design and Development of Contactless Communication Module for Pre setter of Underwater Vehicles J.Lavanyambhika, **D.Madhavi *Digital Systems and Signal Processing in Electronics and Communication Engineering,
More informationDatasheet DS0011 AM093 Wireless Meter-Bus Dual Band 169/868MHz Narrowband Modem Advance Information Production Status Production
Datasheet DS0011 AM093 Wireless Meter-Bus Dual Band 169/868MHz Narrowband Modem Production Status Production Important Information The information contained in this document is subject to change without
More informationTraining Schedule. Robotic System Design using Arduino Platform
Training Schedule Robotic System Design using Arduino Platform Session - 1 Embedded System Design Basics : Scope : To introduce Embedded Systems hardware design fundamentals to students. Processor Selection
More informationREAL TIME DIGITAL SIGNAL PROCESSING. Introduction
REAL TIME DIGITAL SIGNAL Introduction Why Digital? A brief comparison with analog. PROCESSING Seminario de Electrónica: Sistemas Embebidos Advantages The BIG picture Flexibility. Easily modifiable and
More information5008 Dual Synthesizer Configuration Manager User s Guide (admin Version) Version valontechnology.com
5008 Dual Synthesizer Configuration Manager User s Guide (admin Version) Version 1.6.1 valontechnology.com 5008 Dual Synthesizer Module Configuration Manager Program Version 1.6.1 Page 2 Table of Contents
More information5.5: A 3.2 to 4GHz, 0.25µm CMOS Frequency Synthesizer for IEEE a/b/g WLAN
5.5: A 3.2 to 4GHz, 0.25µm CMOS Frequency Synthesizer for IEEE 802.11a/b/g WLAN Manolis Terrovitis, Michael Mack, Kalwant Singh, and Masoud Zargari 1 Atheros Communications, Sunnyvale, California 1 Atheros
More informationInternational Journal of Advance Engineering and Research Development
Scientific Journal of Impact Factor (SJIF): 4.14 International Journal of Advance Engineering and Research Development Volume 3, Issue 3, March -2016 DIGITAL FUEL INDICATOR Ashish S. Dain 1, Akshay U.
More informationDesign Implementation Description for the Digital Frequency Oscillator
Appendix A Design Implementation Description for the Frequency Oscillator A.1 Input Front End The input data front end accepts either analog single ended or differential inputs (figure A-1). The input
More informationATB200. Datasheet. ATB200 GPRS / GPS based Fleet Management Terminal. 1
ATB200 GPRS / GPS based Fleet Management Terminal Datasheet www.dtsis.com 1 Description ATB200 is a compact, standalone and economical, but yet powerful and feature rich fleet management terminal. Comprising
More informationSoldier Tracking and Health Indication System Using ARM7 LPC-2148
Soldier Tracking and Health Indication System Using ARM7 LPC-2148 Shraddha Mahale, Ekta Bari, Kajal Jha Mechanism under Guidance of Prof. Elahi Shaikh (HOD) Electronics Engineering, Mumbai University Email:
More informationA COMPACT, AGILE, LOW-PHASE-NOISE FREQUENCY SOURCE WITH AM, FM AND PULSE MODULATION CAPABILITIES
A COMPACT, AGILE, LOW-PHASE-NOISE FREQUENCY SOURCE WITH AM, FM AND PULSE MODULATION CAPABILITIES Alexander Chenakin Phase Matrix, Inc. 109 Bonaventura Drive San Jose, CA 95134, USA achenakin@phasematrix.com
More informationINTRODUCTION TO TRANSCEIVER DESIGN ECE3103 ADVANCED TELECOMMUNICATION SYSTEMS
INTRODUCTION TO TRANSCEIVER DESIGN ECE3103 ADVANCED TELECOMMUNICATION SYSTEMS FUNCTIONS OF A TRANSMITTER The basic functions of a transmitter are: a) up-conversion: move signal to desired RF carrier frequency.
More informationRF Basics 15/11/2013
27 RF Basics 15/11/2013 Basic Terminology 1/2 dbm is a measure of RF Power referred to 1 mw (0 dbm) 10mW(10dBm), 500 mw (27dBm) PER Packet Error Rate [%] percentage of the packets not successfully received
More informationMulti-Channel High Performance Data Acquisition System and Digital Servo Controller Module
VDSP-31 VXI MODULE Multi-Channel High Performance Data Acquisition System and Digital Servo Controller Module OVERVIEW The VDSP31 is a VXI based, multi-channel data acquisition system and digital servo
More informationAN-1370 APPLICATION NOTE
APPLICATION NOTE One Technology Way P.O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com Design Implementation of the ADF7242 Pmod Evaluation Board Using the
More informationECE 476/ECE 501C/CS Wireless Communication Systems Winter Lecture 9: Multiple Access, GSM, and IS-95
ECE 476/ECE 501C/CS 513 - Wireless Communication Systems Winter 2003 Lecture 9: Multiple Access, GSM, and IS-95 Outline: Two other important issues related to multiple access space division with smart
More informationUSB Port Medium Power Wireless Module SV653
USB Port Medium Power Wireless Module SV653 Description SV653 is a high-power USB interface integrated wireless data transmission module, using high-performance Silicon Lab Si4432 RF chip. Low receiver
More informationUnit level 5 Credit value 15. Introduction. Learning Outcomes
Unit 46: Unit code Embedded Systems A/615/1514 Unit level 5 Credit value 15 Introduction An embedded system is a device or product which contains one or more tiny computers hidden inside it. This hidden
More informationEVDP610 IXDP610 Digital PWM Controller IC Evaluation Board
IXDP610 Digital PWM Controller IC Evaluation Board General Description The IXDP610 Digital Pulse Width Modulator (DPWM) is a programmable CMOS LSI device, which accepts digital pulse width data from a
More informationACI8105 6dBm module specification
ACI8105 6dBm module specification Version :20140318 General Description A8105 is a high performance and low cost 2.4GHz FSK/GFSK system-on-chip (SOC) wireless transceiver. With on chip fraction-n synthesizer,
More informationCHAPTER - 6 PIN DIODE CONTROL CIRCUITS FOR WIRELESS COMMUNICATIONS SYSTEMS
CHAPTER - 6 PIN DIODE CONTROL CIRCUITS FOR WIRELESS COMMUNICATIONS SYSTEMS 2 NOTES 3 INTRODUCTION PIN DIODE CONTROL CIRCUITS FOR WIRELESS COMMUNICATIONS SYSTEMS Chapter 6 discusses PIN Control Circuits
More informationHybrid Frequency Synthesizer Combines Octave Tuning Range and Millihertz Steps
Hybrid Frequency Synthesizer Combines Octave Tuning Range and Millihertz Steps DDS and PLL techniques are combined in this high-resolution synthesizer By Benjamin Sam Analog Devices Northwest Laboratories
More informationHUMAN BODY MONITORING SYSTEM USING WSN WITH GSM AND GPS
HUMAN BODY MONITORING SYSTEM USING WSN WITH GSM AND GPS Mr. Sunil L. Rahane Department of E & TC Amrutvahini College of Engineering Sangmaner, India Prof. Ramesh S. Pawase Department of E & TC Amrutvahini
More informationDSP BASED SYSTEM FOR SYNCHRONOUS GENERATOR EXCITATION CONTROLL
DSP BASED SYSTEM FOR SYNCHRONOUS GENERATOR EXCITATION CONTROLL N. Bulic *, M. Miletic ** and I.Erceg *** Faculty of electrical engineering and computing Department of Electric Machines, Drives and Automation,
More informationMIPI VGI SM for Sideband GPIO and Messaging Consolidation on Mobile System
Lalan Mishra Principal Engineer Qualcomm Technologies, Inc. Satwant Singh Sr. Director Lattice Semiconductor MIPI VGI SM for Sideband GPIO and Messaging Consolidation on Mobile System Agenda The Problem
More informationFPGAs: Why, When, and How to use them (with RFNoC ) Pt. 1 Martin Braun, Nicolas Cuervo FOSDEM 2017, SDR Devroom
FPGAs: Why, When, and How to use them (with RFNoC ) Pt. 1 Martin Braun, Nicolas Cuervo FOSDEM 2017, SDR Devroom Schematic of a typical SDR Very rough schematic: Analog Stuff ADC/DAC FPGA GPP Let s ignore
More informationDRF5150S Wireless Sensor Transmitter Module V1.30
DRF5150S Wireless Sensor Transmitter Module V1.30 Features GFSK Transmitter module ISM frequency bands 81K bps data rate 10dBm output power Baud rate configurable 256 bytes data buffer Standby current
More informationDartmouth College LF-HF Receiver May 10, 1996
AGO Field Manual Dartmouth College LF-HF Receiver May 10, 1996 1 Introduction Many studies of radiowave propagation have been performed in the LF/MF/HF radio bands, but relatively few systematic surveys
More informationISSCC 2003 / SESSION 20 / WIRELESS LOCAL AREA NETWORKING / PAPER 20.2
ISSCC 2003 / SESSION 20 / WIRELESS LOCAL AREA NETWORKING / PAPER 20.2 20.2 A Digitally Calibrated 5.15-5.825GHz Transceiver for 802.11a Wireless LANs in 0.18µm CMOS I. Bouras 1, S. Bouras 1, T. Georgantas
More informationDISCONTINUED. Modulation Type Number of RF Channels 15
RFM Products are now Murata products. 2.4 GHz Spread Spectrum Transceiver Module Small Size, Light Weight, Built-In Antenna Sleep Current less than 3 µa FCC, Canadian IC and ETSI Certified for Unlicensed
More information