Case Study Osc2: Case Study: Osc2. Design of a C-Band VCO. Outline. Reflection oscillator
|
|
- Barnaby Pitts
- 6 years ago
- Views:
Transcription
1 MICROWE ND RF DESIN Case Stuy: Osc2 Design of a C-an CO Pesente by Michael Stee 4.4 to 5.5 Hz Oscillato Case Stuy Osc2: Design of a C-an CO tune 3.6nH 0.5pF D1 D2 D3 D4 0.5pF 47.5 Ca 2k 2.2nH out 2.2pF Z L L CHOKE cc I cc Reaing: Chapte 20, 20.5,6 Inex: CS_Osc2 ase on mateial in Micowave an RF Design: Systems ppoach, 2 n Eition, by Michael Stee. SciTech Publishing, Pesentation copyight Michael Stee Slies copyight 2013 M. Stee. 2 Outline Reflection oscillato pinciples Common base Colpitts oscillato Reflection oscillato opeation Resonato an active netwok topologies Point of oscillation Reflection oscillato Y = +j Γ Γ Y = +j t the fequency an amplitue of oscillation: Y Y 1 1 ll equivalent. When the oscillation signal is small, i.e. fo oscillation stat-up: gets smalle as the oscillation signal buils up. 3 4
2 Common base Colpitts oscillato The C R an L R cicuit is calle a esonato but esonate at a fequency below the oscillation fequency so the netwok looks like an effective capacitance. in C 1 L 3 H L tune C 2 Lchoke out Colpitts Oscillato Feeback Fom C R L R L 3 L C Colpitts Tansisto Configuation Output R L Dain souce Capacitance (coul also a aitional C 1 capacitance) Feeback output C 2 5 tune Lchoke C R Y = +j Reflection oscillato opeation L R L C One pot oscillato Output R L Y = +j Conuctance Susceptance Ieal mplitue Ieal Fequency, f s the amplitue of the oscillation inceases, the magnitue of the evice conuctance, eceases while the conuctance of the tank cicuit, is constant. s the fequency of the oscillation inceases the susceptance of the tank cicuit,, changes while, (ieally) oes not change. 6 Y = +j ctive evice ieal esponse One pot oscillato Y = +j Results in constant amplitue acoss the tuning ange. Results in low phase noise. Common base oscillato tune Y = +j Lchoke C R Γ L R Γ Y = +j L C Output R L Fequency, f mplitue Results in low phase noise. small vaiation in with espect to fequency is ok (an unavoiable at RF). lso often necessay fo oscillato stat up., especially fo COs tune Resonato netwok 3.6nH 0.5pF D1 0.5pF D2 D3 D4 ctive netwok 47.5 Ca 2k 2.2nH out 2.2pF Z L L CHOKE cc I cc 7 8
3 Resonato netwok tune Lchoke C R L R Inuctos ae RF open cicuits. L C Output R L tune 3.6nH Resonato netwok 0.5pF 0.5pF ctive netwok k 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc tune Resonato eflection coefficient 4 Hz tune 3 D1 tune D2 D3 D4 Inceasing fequency Stacke vaacto ioes incease RF beakown voltage. (aactos have tunable capacitance.) Tansmission line eplaces L R an has lowe loss ctive netwok Ieal tune Resonato netwok 3.6nH 0.5pF 0.5pF ctive netwok k 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc ctive evice eflection coefficient out Z L cc mplitue RF SHORT out Z L cc RF OPEN C b RF SHORT Inceasing fequency Inceasing signal level RF SHORT an C b ajust so that 0 1/ (Small signal) 11 12
4 Y = +j Γ Γ Oscillation point Y = +j 4 Hz Inceasing amplitue Y = +j Γ Γ Oscillation point Y = +j 4 Hz Lage amplitue Intesection efines oscillation fequency an amplitue. Want just one intesection fo single fequency oscillation. Rotation in opposite iections an with paallel tajectoies esults in low phase noise. (3 ) Inceasing fequency Intesection Inceasing fequency 13 Y f Y 0 f Oscillation conition: Note that 0 So phase noise is even bette than ieal situation. Inceasing fequency (3 ) Inceasing fequency Intesection 14 Topology outline. Summay Case Stuy Osc2: Pat Oscillation Conitions Initial esign objective state. oal is stable single fequency oscillation with low phase noise an high efficiency. To consie next: Detaile esign stategy. Oscillato stat-up equiements. Stategies fo avoiing multiple oscillations. Y = +j Y = +j If stable single fequency oscillation occus, then an That is, 1, 1/, o 1/ 1. Oscillation conition (vaiation of conuctance an susceptance) Known as Kuokawa oscillation conition 2. Conitions fo stat up of oscillation Slies copyight 2013 M. Stee. 15 D 16
5 Kuokawa oscillato conition Kuokawa conition fo stable singlefequency oscillation: 0 0, 0 The subscipt 0 efes to the opeating point. Descibes a single cossing of the eflection coefficient cuves Fo a fixe fequency RF oscillato is vey small so secon tem is negligible. Kuokawa conition simplifies to: 0 0, 0 Fo an RF CO, is not small ue to vaacto loss. So esign can be complex. Y = +j mplitue Fequency, Y = +j f 17 Kuokawa oscillato conition fo micowave CO esign Kuokawa conition fo stable singlefequency oscillation: 0 0, 0 Y = +j Y = +j chieving single-fequency oscillation can be a challenge fo micowave fixe fequency oscillato esign, an the esign complexity is much highe fo a micowave CO. Design using the full Kuokawa conition is foun to be too limiting at micowave fequencies. Thee ae othe consieations such as minimizing phase noise, e.g. we want the fequency of oscillation to be inepenent of the oscillation amplitue (this minimizes phase noise). minimizing DC powe consumption. conitions fo oscillato stat-up. 18 Kuokawa oscillato conition simplification Kuokawa conition fo stable singlefequency oscillation: 0 0, 0 Y = +j Y = +j Simplifie Kuokawa oscillato conition Kuokawa conition fo simplifie esign: 0, 0 0 Y = +j Γ Γ Y = +j So in CO esign the esign poceue must be kept simple, an this opens up the esign space to enable optimization of othe chaacteistics. Micowave CO esign stategy: choose a topology that Has an effective evice susceptance that is inepenent of signal amplitue (i.e., / = 0). Has a loae esonato conuctance that is inepenent of fequency (i.e., / ω = 0). Kuokawa conition fo simplifie esign: 0, Design evice netwok so that 0 Design tank netwok so that 0 Recall unmoifie Kuokawa conition: 0,
6 ltenative simplifie Kuokawa oscillato conition Kuokawa conition fo simplifie esign: 0, 0 0 Y = +j Γ Γ Y = +j Simplifie Kuokawa oscillato conition Fixe fequency oscillato ey little loss in esonato oltage contolle oscillato Significant esonato loss (ue to vaacto ioes) Common base Colpitts oscillato Lchoke tune Output C C R L R R L L Γ Γ Colpitts point of oscillation Resonato netwok ctive netwok tune 3.6nH 0.5pF 0.5pF D1 D2 D3 D Ca 2k 2.2nH out 2.2pF Z L L CHOKE cc I cc 1 2 POINT OF OSCILLTION HERE OR HERE Fo a fixe fequency oscillato eithe egion of oscillation is suitable. Fo a micowave CO egion 2 is equie because of esonato loss
7 Resonato netwok tune Lchoke C R L R Inuctos ae RF open cicuits. tune L C Output R L tune D1 D2 D3 D4 3.6nH Resonato netwok 0.5pF 0.5pF ctive netwok k 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc Inuctos ae RF open cicuits. tune Simulate eflection coefficient of the esonato, Γ, of the C-ban CO. 3. (1 ) 4 Hz Stacke vaacto ioes Stacke vaacto ioes Reflection coefficient of the esonato at iffeent biases Legen (1 ) 4.5 Hz (3 ) 4.5 Hz 4.2 Hz 4.5 Hz Hz (1 ) 4.4 Hz 4.7 Hz Compaison of oscillation points Oscillato Case Stuy #1 Oscillato Case Stuy #2 3. (1 ) 4 Hz (3 ) tune 4.8 Hz 4.5 Hz 20 Hz 15 Hz 4.7 Hz 4.9 Hz Point of oscillation in this egion. Point of oscillation in this egion. 28
8 Y = +j Conuctance Requie angle of evice Y = +j R P = 1/ Summay oscillation conitions 1. Kuokawa conition fo stable single-fequency oscillation: 0 0, 0 2. Simplifie Kuokawa conition (easy to esign to): 0 0, 0 Requie that ( / = 0) an ( / ω = 0). (If lossy esonato.) oltage contolle oscillato Significant esonato loss (ue to vaacto ioes) mplitue Want high R P = 1/ so is small. (a) Γ = 1.4 (b) Γ = 2 (c) Γ = 4 vesus the evice eflection coefficient angle. () is the oscillato Q fo Γ = Conition fo oscillato stat up (fo a CO with a lossy esonato). 30 Case Stuy Osc2: Pat C Resonato Design Y = +j Y = +j t oscillation Kuokawa oscillato conition simplification Kuokawa conition fo stable singlefequency oscillation: Y = +j 0 0, 0 Kuokawa conition fo simplifie So, ieally want esign: 0 0 an 0, 0 Γ Γ Y = +j 0 tune lso want Keeps phase noise low as oscillation fequency oes not epen on amplitue. - an is +ve so must be +ve Slies copyight 2013 M. Stee. mplitue mplitue 31 32
9 Resonato chaacteistic Resonato chaacteistic Γ Γ Γ Γ So, must be +ve 0 Y = +j Y = +j Line of constant conuctance Y = +j Y = +j lso No epenence on amplitue Conuctance mplitue Inceasing fequency 33 lso tunable, must be able to otate by vaying a tuning voltage. Oscillato stat up. 34 Resonato esign Γ Γ Lchoke tune C C R L R L tune Lchoke C R Resonato netwok esign Γ L R Γ L Inucto is an RF open cicuit. DC block Wie (low impeance) micostip tansmission line. 1. Keep esonato as a simple paallel LC cicuit. 2. L R an C R esult in high an can contol magnitue. 3. R comes fom L R (tansmission line) an C R (vaacto). 4. Depenence of an on amplitue comes fom vaacto I Cj evese biase ioe is a vaiable capacito. tune vaacto ioe D 36
10 aacto ioe, tune aacto stack euces 0 tune D RF signal. Want negligible cuent flow (low shot noise). + I I tune I 0 tune RF signal. D tune RF signal. 1. Choose tune to minimize DC cuent. 2. Minimize cuent flow an. 3. ut a goo esonato will have a lage RF voltage swing. 4. Make sue tune minimizes cuent flow. RF signal. Cj tune RF signal. Cj RF signal. C eff What if RF voltage swing is too lage? Recall that we want 0 tune 4 tune RF aacto stack euces an aacto stack inceases tuning ange tune tune tune tune + I I eate tuning ange since high cuent egions can be avoie. I + I I eate tuning ange since high cuent egions can be avoie. I 4 4 I 0 RF I 0 RF I 0 RF I 0 RF Cj C eff Cj C eff tune RF tune RF 4 tune RF tune RF
11 Final esonato justments tune RF chokes Capacitance ajustment (also DC block) justable shot cicuit tune DC block C Moel C TL TL Povie impeance tansfomation tune Reflection coefficient of the esonato at iffeent biases If cossove of an 1/ is as shown by then changing the tuning voltage fom 1 to 3 changes the oscilaltion fequency fom 4.5 Hz to 4.8 Hz. Legen (1 ) 4.5 Hz (3 ) 4.5 Hz 4.7 Hz 3. (1 ) (3 ) 3.7 Hz 4.2 Hz 4.5 Hz 4.9 Hz Hz 4.4 Hz 4.7 Hz 4.5 Hz 43 Summay: final esonato netwok tune Tansmission line euces loss compae to an inucto aacto stack euces esonato conuctance. aacto stack euces epenence of esonato amittance on signal amplitue. D1 D2 D3 D4 TL C 1 justments povie by, an C fixe afte layout 44
12 Case Stuy Osc2: Pat D ctive Netwok Design Y = +j Y = +j t oscillation tune Lchoke C R Reflection oscillato opeation L R L C Output R L Conuctance Ieal mplitue s the amplitue of the oscillation inceases, the magnitue of the evice conuctance, eceases while the conuctance of the tank cicuit, is constant. out Z L cc Y = +j One pot oscillato Y = +j Susceptance Ieal s the fequency of the oscillation inceases the susceptance of the tank cicuit,, changes while, (ieally) oes not change. Slies copyight 2013 M. Stee. Fequency, f ctive netwok opeation L C Output R L mplitue Keep inepenent of amplitue to euce phase noise. ctive netwok Ieal The esistos ae equie fo biasing. L R L C Output R L RF SHORT tune 3.6nH Resonato netwok 0.5pF 0.5pF ctive netwok k out Z L cc RF OPEN 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc Y = +j One pot oscillato Y = +j (b) (a) Fequency, f Cuve (a) is simple ieal esponse, cuve (b) esponse is even bette. 47 RF SHORT RF SHORT C b an C b ajust so that 0 an ( f ) is paallel to ( f ). 48
13 Kuokawa oscillato conition Kuokawa conition fo simplifie esign: 0, 0 0 Y = +j an Γ Γ Design evice cicuit so that Y = +j 0 0 Small an lage signal 1/ Want 1. Lage at (fast stat up of small signal oscillation) levels. ( 1/ is small at a small signal level). 2. (low phase noise) 0 3. (unifom 0 amplitue of oscillation acoss tuning ange ) Oscillation statup 49 Inceasing fequency Inceasing amplitue 50 Reflection coefficient shaping Legen = 0.5 pf, C b = 0 = 0.5 pf, C b = 0.5 pf CC = 0, C b = 0.5 pf DD = 0, C b = 0 1/ C 4 Hz D Inceasing amplitue 4 Hz 1/ 3.7 Hz 3.7 Hz Inceasing Simulate eflection coefficient of the esonato, Γ, an the invese of the small signal eflection coefficient of the active evice, 1/Γ, of the C ban CO fo vaious values of the compensation capacitos an C b. 1/ C (3 ) D 51 Simulate eflection coefficient = 0.5 pf C b = 0.5 pf. (3 ) 1/ oscillation level 52
14 Multiple cossings out Z L cc 4 Hz 1/ 3.7 Hz Multiple simultaneous oscillation 4 Hz 1/ 3.7 Hz Measue Simulate eflection coefficient of the esonato, Γ, an the invese of the small signal eflection coefficient of the active cicuit, 1/Γ, with = 0.5 pf an without C b. (3 ) 1/ Inceasing level 53 (3 ) 1/ Inceasing level 54 ctive netwok Summay: active netwok esign out Z L cc C b ctive netwok nees to be optimize using measuements (cannot moel sufficiently). an C b enable shaping of 1/ out Z L cc Cicuit at RF: out Z L RF OPEN cc Nee to avoi multi oscillation. Nee inepenent of fequency. (Constant amplitue oscillation.) Pi attenuato (with 294 Ω esistos in the shunt legs an a 17.4 Ω seies esisto). The output filte is a 50 Ω PF. 55 C b Nee lage fo fast statup. 56
15 Case Stuy Osc2: Pat E Final Iteation on CO Design CO schematic tune 3.6nH Resonato netwok 0.5pF 0.5pF ctive netwok k 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc (a) justable featues out Z L cc (b) L tune Slies copyight 2013 M. Stee. (c) Final CO cicuit Resonato an active evice cicuits. Resonato netwok ctive netwok Resonato netwok ctive netwok justable featues 59 60
16 Measuement of the active netwok Measuement of the active cicuit with a 50 Ω test fixtue at the inteface of the esonato an active netwoks. The ca was cut at the inteface to make the connection. The 35 ps elay is ue to the length of the SM connecto is equie to efeence measuements to the cicuit ca ege. The peio of a 5 Hz signal is 200 ps. Resonato measuements Measue Γ at 3. Raw 5. Coecte 3.8 Hz So the connecto has an electical length of 63 o. The eflection coefficient is otate by 126 o. So measuements must be coecte. The SM connecto also has paasitic capacitance an inuctance. Coection will not be pefect. 61 ctual measuements otate by 126 o 62 Measuement Measue Γ at 3. = 0.5 pf an C b = 0. 1/Γ moves to the ight as the signal level inceases. The intesection of 1/Γ an Γ etemines the oscillation fequency an the signal level. 4.8 Hz Hz 4.4 Hz 3.8 Hz 4 Hz Compaison 3.7 Hz Inceasing level 4.8 Hz Hz 4.4 Hz 3.8 Hz 1/ Small signal Simulate = 0.5 pf an C b = 0. tune = 3 Small signal 0.4 S 2.5 Measue 64
17 Simulation an measuement accuacy Lage signal chaacteistic Simulation fielity Measuement fielity Lage signal 10 m RR RR Locus of oscillation /2 D EM simulation use but sie wall capacitances not taken into account. Moel limitations. Connection esistances ae not accounte fo. Full effect of SM connecto not accounte fo. Paasitics of connecto Γ fo 0 (cuve a) to 9 (cuve g) Lage signal 1/Γ. e f 4.5 Hz a b c g 3.5 Hz 4.5 Hz 4.8 Hz Fiel lines teminate on flange Resonato ajustments D1 D2 Cicuit at RF: ctive netwok ajustments an C b enable shaping of 1/ out Z L cc D3 D4 C justments povie by, an C C C b C b 67 68
18 Measue tuning cuve Measue output powe an hamonics t out (befoe the banpass filte) inicating low level hamonic content Phase noise measue Summay: C ban (5 Hz) CO tune 3.6nH 0.5pF 0.5pF k 2.2nH out 2.2pF Z L 50 L CHOKE 47.5 cc I cc Micowave CO esign is a methoical pocess. Simulation togethe with measuements leas to a methoical esign pocess. uil in ajustability in esign. Micowave cicuits nealy always equie tuning of each item
Case Study: Osc2 Design of a C-Band VCO
MICROWAVE AND RF DESIGN Case Study: Osc2 Design of a C-Band VCO Presented by Michael Steer Reading: Chapter 20, 20.5,6 Index: CS_Osc2 Based on material in Microwave and RF Design: A Systems Approach, 2
More informationMulti-Channel Power Amplifi ers
Multi-Channel Powe Amplifi es CX-A450 & CX-A850 482.6mm / 19" 88mm / 3 1 /2" (2U) Clou CX-A450 font view Clou CX-A450 ea view 482.6mm / 19" 88mm / 3 1 /2" (2U) Clou CX-A850 font view Geneal Desciption
More informationCLOUD MULTI-CHANNEL POWER AMPLIFIERS
CLOUD MULI-CHANNEL POWER AMPLIFIERS Clealy bette soun MODELS CX-A450 & CX-A850 CX-A450 FOUR CHANNEL POWER AMPLIFIER PROEC PEAK SIGNAL 4 3 POWER Clou CX-A450 - font panel view CH RL- LEVEL CH RL- LEVEL
More informationDiscussion #7 Example Problem This problem illustrates how Fourier series are helpful tools for analyzing electronic circuits. Often in electronic
Discussion #7 Example Poblem This poblem illustates how Fouie seies ae helpful tools fo analyzing electonic cicuits. Often in electonic cicuits we need sinusoids of vaious fequencies But we may aleady
More informationN2-1. The Voltage Source. V = ε ri. The Current Source
DC Cicuit nalysis The simplest cicuits to undestand and analyze ae those that cay diect cuent (DC). n this note we continue ou study of DC cicuits with the topics of DC voltage and cuent souces, the idea
More informationA New Buck-Boost DC/DC Converter of High Efficiency by Soft Switching Technique
A New Buck-Boost D/D onvete of High Efficiency by Soft Switching Technique Dong-Kul Kwak, Seung-Ho Lee, and Do-Young Jung Pofessional Gaduate School of Disaste Pevention, Kangwon National Univesity, 45-711,
More informationChapter 9 Cascode Stages and Current Mirrors
Chapte 9 Cascode Stages and Cuent Mios 9. Cascode Stage 9. Cuent Mios CH 9 Cascode Stages and Cuent Mios Boosted Output Impedances S O S m out E O E m out g g Bipola Cascode Stage [ g ( )] out m O O O
More informationECEN326: Electronic Circuits Fall 2017
ECEN36: Electonic Cicuits Fall 07 Lectue 4: Cascode Stages and Cuent Mios Sam Palemo Analog & Mixed-Signal Cente Texas A&M Univesity Announcements HW3 due 0/4 Exam 0/9 9:0-0:0 (0 exta minutes) Closed book
More informationDigital Simulation of FM-ZCS-Quasi Resonant Converter Fed DD Servo Drive Using Matlab Simulink
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 6, No. 2, Novembe 2009, 227-237 UDK: 621.314.1:621.376 Digital Simulation of FM-ZCS-Quasi Resonant Convete Fed DD Sevo Dive Using Matlab Simulink Kattamui
More informationSinusoidal Oscillators
Sinusoidal Oscillatos Signal geneatos: sinusoidal, ectangula, tiangula, TLV, etc. Obtaining a sine wave: tiangle functional tansfome sine sine wave geneation: fequency selective netwok in a feedback loop
More informationMinimizing Ringing and Crosstalk
Minimizing Ringing and Cosstalk By Glen Dash, Ampyx LLC, GlenDash at alum.mit.edu Copyight 1998, 26 Ampyx LLC When viewed on a schematic, a wie is just a wie. Howeve, when isetimes shink to a few nanoseconds
More information-rays,infrared rays, microwaves, yellow light, radio waves.
BHUJ-JAMNAGAR CLUSTER LEVEL PHYSICS WORKSHOP CLASS-XII ELECTROMAGNETIC WAVES One maks questions Q.1 The chaging cuent fo a capacito is.5 A. what is the isplacement cuent acoss its plates? Displacement
More informationProposal of Circuit Breaker Type Disconnector for Surge Protective Device
Poposal of Cicuit Beake Type Disconnecto fo Suge Potective Device MASAO SHIBAYAMA, HITOSHI KIJIMA Polytechnic Univesity 2-32-1 Ogawanishi, Kodaia, Tokyo, 187-0035 JAPAN hkijima@uitec.ac.jp Abstact: - A
More informationCase Study: Osc1 Design of a Reflection Oscillator
MICROWAVE AND RF DESIGN Case Study: Osc1 Design of a Reflection Oscillator Presented by Michael Steer Reading: Chapter 20, Section 20.4 Index: CS_Osc1 Based on material in Microwave and RF Design: A Systems
More informationShort-Circuit Fault Protection Strategy of Parallel Three-phase Inverters
Shot-Cicuit Fault Potection Stategy of Paallel Thee-phase Invetes Hongliang Wang, Membe, IEEE, Xuejun Pei, Membe, IEEE, Yu Chen, Membe, IEEE,Yong Kang College of Electical and Electonics Engineeing Huazhong
More informationAnalysis and Implementation of LLC Burst Mode for Light Load Efficiency Improvement
Analysis and Implementation of LLC Bust Mode fo Light Load Efficiency Impovement Bin Wang, Xiaoni Xin, Stone Wu, Hongyang Wu, Jianping Ying Delta Powe Electonics Cente 238 Minxia Road, Caolu Industy Zone,
More informationOptimal Design of Smart Mobile Terminal Antennas for Wireless Communication and Computing Systems
Optimal Design of Smat Mobile Teminal Antennas fo Wieless Communication and Computing Systems Autho Lu, Junwei, Yang, Shiyou Published 2007 Confeence Title 2007 4th Intenational Symposium on Electomagnetic
More informationDesign of an LLC Resonant Converter Using Genetic Algorithm
Design of an LLC Resonant Convete Using Genetic Algoithm H. H. Nien, C. K. Huang, S. K. Changchien, C. H Chan Dept. of Electical Engineeing, Chienkuo Technology Univesity E-mail: nien@ctu.edu.tw Dept,
More informationGas Tube Arresters. Certifications, Device Selection Purpose, Operation, Installation Part Number Construction, Part Marking. General Information
Gas Tube Aestes The Potection Poducts Goup of Wold Poducts Inc., specializing in potection poducts fo AC and DC cicuits, is poud to featue a full line of Gas Tube Aestes. Ceamic Gas Tube Aestes povide
More informationA 1-MHz Series Resonant DC-DC Converter With a Dual-Mode Rectifier for PV Microinverters
Aalbog Univesitet A -MHz Seies Resonant DC-DC Convete With a Dual-Moe Rectifie fo PV Micoinvetes Shen, Yanfeng; Wang, Huai; Shen, Zhan; Yang, Yongheng; Blaabjeg, Fee Publishe in: I E E E DOI (link to publication
More informationOptimised Wireless Network Using Smart Mobile Terminal Antenna (SMTA) System
Optimised Wieless Netwok Using Smat Mobile Teminal Antenna (SMTA) System Autho Lu, Junwei, Sciven, Ian, Wate, Wayne Published 2010 Confeence Title Poceedings of IEEE APEMC2010 DOI https://doi.og/10.1109/apemc.2010.5475858
More informationClosed Loop Controlled LLC Half Bridge Isolated Series Resonant Converter
Closed Loop Contolled LLC Half Bidge Isolated Seies Resonant Convete Sivachidambaanathan.V and S. S. Dash Abstact LLC seies esonant convete is the most suitable convete fo medium powe applications due
More informationVHT SPECIAL 12/ Watt Hand-Wired Vacuum Tube Guitar Amplifier. User Manual
VHT SPECIAL 12/20 12 Watt Han-Wie Vacuum Tube Guita Amplifie Use Manual TALE OF CONTENTS PRODUCT SAFETY INFORMATION...1 OVERVIEW...2 FEATURES...3 CONTROL PANEL FUNCTIONS...4 REAR PANEL FUNCTIONS...6-7
More informationAnalysis of a Fractal Microstrip Patch Antenna
124 Analysis of a Factal Micostip Patch Antenna Vibha Rani Gupta and Nisha Gupta* Bila Institute of Technology, Mesa, Ranchi-835215, Jhakhand, India. vgupta@bitmesa.ac.in, ngupta@bitmesa.ac.in Abstact-
More informationHISTORY AND PROGRESS OF THE TOW THOMAS BI-QUADRATIC FILTER. PART I. GENERATION AND OP AMP REALIZATIONS
Jounal of icuits, Systems, and omputes Vol. 7, No. (2008) 33 54 c Wold Scientific Publishing ompany HISTOY ND POGESS OF THE TOW THOMS BIQUDTI FILTE. PT I. GENETION ND OP MP ELIZTIONS HMED M. SOLIMN Electonics
More informationKeysight Technologies Basics of Measuring the Dielectric Properties of Materials. Application Note
Keysight Technologies Basics of Measuing the Dielectic Popeties of Mateials Application Note Contents Intoduction...3 Dialetic Theoy...4 Dielectic constant...4 Pemeability...7 Electomagnetic Popagation...8
More informationElectrical characterization of thin film ferroelectric capacitors
1 Electical chaacteization of thin film feoelectic capacitos M. P. J. Tiggelman, K. Reimann, M. Klee, D. Beelen, W. Keu, J. Schmitz, and R. J. E. Hueting Abstact Tunable capacitos can be used to facilitate
More informationThis article presents the
A Ciculaly Polaized 6 GHz Micostip Antenna Hee is a mm-wave antenna suitable fo WLAN systems By V. A. Volkov, M. D. Panes Asco, and V. D. Koolkov and R. G. Shifman Resonance This aticle pesents the design
More informationHighly Selective Dual-Mode Microstrip Bandpass Filters Using Triangular Patch Resonators
ADVANCED ELECTROMAGNETICS, VOL. 6, NO. 1, MARCH 2017 Highly Selective Dual-Mode Micostip Bandpass Filtes Using Tiangula Patch Resonatos K.G. Avinash, I. Sinivasa Rao School of Electonics Engineeing, VIT
More informationSliding Mode Control for Half-Wave Zero Current Switching Quasi-Resonant Buck Converter
Sliding Mode Contol fo Half-Wave Zeo Cuent Switching Quasi-Resonant Buck Convete M. Ahmed, Student membe, IEEE, M. Kuisma, P. Silventoinen Abstact This pape focuses on the pactical implementation of sliding
More informationTracking Control of Combination Vehicles with Preview Feedforward Compensation
Memois of the Facult of Engineeing, Okaama Univesit, Vol. 4, pp. -8, Janua 9 Tacking Contol of Combination Vehicles with Peview Feefowa Compensation Shuji MABUCHI, Masami KONISHI, Jun IMAI Dept. of Electical
More informationReal-time Self Compensating AC/DC Digitally Controlled Power Supply
Real-time Self Compensating AC/DC Digitally Contolled Powe Supply Dave Feeman, Mak Hagen Texas Instuments Digital Powe Goup Digital Contol Poblem: Detemining optimal loop compensation given uncetainties
More informationwhere and are polynomials with real coefficients and of degrees m and n, respectively. Assume that and have no zero on axis.
function whee is an unknown constant epesents fo the un-modeled dynamics The pape investigates the position contol of electical moto dives that can be configued as stuctue of Fig 1 This poblem is fomulated
More informationTHE UNIVERSITY OF NEW SOUTH WALES. School of Electrical Engineering & Telecommunications
THE UNIESITY OF NEW SOUTH WAES School of Electical Engineeing & Telecommunications EE97 POWE EETONIS FO ENEWABE AND DISTIBUTED GENEATION EXAMINATION Session (Supplementay Exam) TIME AOWED: 3 hous TOTA
More informationAUTO-TUNED MINIMUM-DEVIATION DIGITAL CONTROLLER FOR LLC RESONANT CONVERTERS
AUTO-TUNED MINIMUM-DEVIATION DIGITAL CONTROLLER FOR LLC RESONANT CONVERTERS by SeyedehMayam SeyedAmouzandeh A thesis submitted in confomity with the equiements fo the degee of Maste of Applied Science
More informationParameters of spinning AM reticles
Paametes of spinning AM eticles onald G. Digges, Cal E. Halfod, and Glenn D. Boeman A new method of obtaining amplitude modulation (AM) fo detemining taget location with spinning eticles is pesented. The
More informationRF Microelectronics. Hanyang University. Oscillator. Changsik Yoo. Div. Electrical and Computer Eng. Hanyang University.
RF Microelectronics Oscillator Changsik Yoo Div. Electrical an Computer Eng. anyang University. Barkausen s Criterion RF oscillators can be viewe as a feeback circuit with frequency selective network.
More informationTELE4652 Mobile and Satellite Communication Systems
TELE465 Mobile an Satellite Communication Systems Lectue 4 Channel Moelling The aim of this chapte is to unestan an moel the ai inteface the channel ou systems of inteest ae communicating ove. As we iscusse
More informationECE 6640 Digital Communications
ECE 6640 Digital Communications D. Badley J. Bazuin Assistant ofesso Depatment of Electical and Compute Engineeing College of Engineeing and Applied Sciences Chapte 5 5. Communications Link Analysis. 1.
More informationBidirectional Contactless Power Transfer System Expandable from Unidirectional System
Bidiectional Contactless Powe Tansfe ystem Epandable fom Unidiectional ystem oichio Naadachi*, higeu Mochizui*, ho aaino*, Yasuyoshi Kaneo*, higeu Abe*, Tomio Yasuda** *aitama Univesity, aitama, Japan
More informationFor most of us, discoveries in the art are
Filtes and an Oscillato Using a New Solenoid Model A tansmission-line model enables a wide ange of filte and oscillato designs By Randy Rhea Eaglewae Fo most of us, discoveies in the at ae ae. My books
More informationAnalysis and Design of a 1MHz LLC Resonant Converter with Coreless Transformer Driver
Analysis and Design of a MHz C Resonant Convete with Coeless Tansfome Dive Mingping Mao, Dimita Tchobanov, Dong i 3, Matin Maez.,Tongji Univesity, Siping Rd 39, 9 Shanghai -China., Faunhofe Institute of
More informationStatic Soil Moisture Retrieval Measurements Based on GNSS-R
2017 3 Intenational Confeence on Computational Systems an Communications (ICCSC 2017) Static Soil Moistue etieval Measuements Base on GSS- TEGDA Pei1,a an YUEKU Pei1,b 1 Steet Xuefuajie, 10, Dalian Economic
More informationExperiments with the HoloEye LCD spatial light modulator
Expeiments with the HoloEye LCD spatial light modulato HoloEye model LC00 spatial light modulato The HoloEye (http://www.holoeye.com/spatial_light_modulato_lc_00.html) LC 00 Spatial Light Modulato (SLM)
More informationMX100/MW100 Data Acquisition Unit Installation and Connection Guide
* M X 0 0 E 0 * Use s Manual MX00/MW00 Data cquisition Unit Installation and Connection Guide Foewod Thank you fo puchasing the MX00/MW00 Data cquisition Unit. This guide descibes concisely the installation
More informationDesign of A Circularly Polarized E-shaped Patch Antenna with Enhanced Bandwidth for 2.4 GHz WLAN Applications
VNU Jounal of Science: Comp. Science & Com. Eng., Vol. 31, No. 2 (2015) 1-7 Design of A Ciculaly Polaized E-shaped Patch Antenna with Enhanced Bandwidth fo 2.4 GHz WLAN Applications Hong Van Tam 1, Luong
More informationSingle-to-three phase induction motor sensorless drive system
Alexandia Engineeing Jounal (212) 51, 77 83 Alexandia Univesity Alexandia Engineeing Jounal www.elsevie.com/locate/aej www.sciencediect.com ORIGINAL ARTICLE Single-to-thee phase induction moto sensoless
More informationOn Implementation Possibilities of High-Voltage IGBTs in Resonant Converters
On Implementation Possibilities of High-Voltage IGBTs in Resonant Convetes Andei Blinov and Dmiti Vinnikov Tallinn Univesity of Technology, Ehitajate tee 5, 986 Tallinn, Estonia Abstact. The conventional
More informationNear-field emission prediction of CESAME
Nea-field emission pediction of CESAME E. Sicad, S. Ben Dhia, E. Lamoueux INSA-GEI, 135 Av de Rangueil 31077 Toulouse Fance B. Vignon, L. Couau ST Micoelectonics, Cental R&D Colles, Fance Contact : etienne.sicad@insa-toulouse.f
More informationExperimental Investigation of Influence on Non-destructive Testing by Form of Eddy Current Sensor Probe
Expeimental Investigation of Influence on Non-destuctive Testing by Fom of Eddy Cuent Senso Pobe Fengyun Xie * and Jihui Zhou School of Mechanical and Electonical Engineeing, East China Jiaotong Univesity,
More informationAN2480 Application note
N2480 pplication note ST333W emo boa application note Intouction The pupose in this ocument is: to escibe how to connect the N2480 emo boa, how to evaluate the emo boa pefomance with electical cuve ata,
More informationECE 6640 Digital Communications
ECE 6640 Digital Communications D. Badley J. Bazuin Assistant ofesso Depatment of Electical and Compute Engineeing College of Engineeing and Applied Sciences Chapte 5 5. Communications Link Analysis. 1.
More informationDESIGN AND PARAMETRIC EVALUATION OF RECTANGULAR MICROSTRIP PATCH ANTENNA FOR GSM APPLICATION
DESIGN AND PARAMETRIC EVALUATION OF RECTANGULAR MICROSTRIP PATCH ANTENNA FOR GSM APPLICATION RAHUL T. DAHATONDE, SHANKAR B. DEOSARKAR Dept. of E & TC, D. Babasaheb Ambedka Technological Univesity, Lonee,
More informationPerformance Investigation of Shunt Active Power Filter Using Hysteresis Current Control Method
Pefomance Investigation of Sunt Active Powe Filte Using Hysteesis Cuent Contol Metod VIKASH ANAND M.Tec. (Powe Electonics & Dives) Electical Engineeing Depatment Madan Moan Malviya Engineeing College Goakpu-273010(U.P),
More informationA Digital Self-Sustained Phase Shift Modulation Control Strategy for Full-Bridge LLC Resonant Converter
A Digital Self-Sustained Phase Shift Modulation Contol JPE??-??-?? http://dx.doi.og/0.6/jpe.??? A Digital Self-Sustained Phase Shift Modulation Contol Stategy fo Full-Bidge LLC Resonant Convete Kai Zheng,
More informationONE-WAY RADAR EQUATION / RF PROPAGATION
ONE-WAY RADAR EQUATION / RF PROPAGATION The one-way (tansmitte to eceive) ada equation is deived in this section. This equation is most commonly used in RWR o ESM type of applications. The following is
More informationStatement of Works Data Template Version: 4.0 Date:
Statement of Woks Data Template Vesion: 4.0 Date: 16.08.17 This Statement of Woks (SoW) Data Template is to be completed by Distibution Netwok Opeatos (DNOs) in ode to povide National Gid the equied data
More informationCHAPTER 2 DESIGN OF PLANAR MICROSTRIP ANTENNA ARRAYS AND MUTUAL COUPLING EFFECTS
CHAPTER DESIGN OF PLANAR MICROSTRIP ANTENNA ARRAYS AND MUTUAL COUPLING EFFECTS In patch antennas, chaacteistics such as high gain, beam scanning, o steeing capability ae possible only when discete patch
More informationEfficient Power Control for Broadcast in Wireless Communication Systems
Efficient Powe Contol fo Boadcast in Wieless Communication Systems A. T. Chonopoulos Compute Science Depatment Univesity of Texas at San Antonio San Antonio, TX Email:atc@cs.utsa.edu P. Cotae Depatment
More information(2) The resonant inductor current i Lr can be defined as, II. PROPOSED CONVERTER
A High Powe Density Soft Switching Bidiectional Convete Using Unified Resonant Cicuit Ratil H Ashique, Zainal Salam, Mohd Junaidi Abdul Aziz Depatment of Electical Engineeing, Univesity Technology Malaysia,
More informationWe are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors
We ae IntechOpen, the wol s leaing publishe of Open Access books Built by scientists, fo scientists 4, 6, M Open access books available Intenational authos an eitos Downloas Ou authos ae among the 54 Counties
More informationJournal of Applied Science and Agriculture
Jounal of Applied Science and Agicultue, 9(16) Octobe 214, Pages: 1-15 AENSI Jounals Jounal of Applied Science and Agicultue ISSN 1816-9112 Jounal home page: www.aensiweb.com/jasa A Design of New Bluetooth
More information30-BAUD PRIVATE LINE CHANNELS
BELL SYSEM Plant Seies PRACCES SECON 312-011-101 ssue 1, July 1970 A&Co Standad 30-BAUD PRVAE LNE CHANNELS NERFACE SPECFCAON 1. GENERAL NRODUCON 1.01 he pupose of this specification is to define the inteface
More informationAMERICAN NATIONAL STANDARD
ENGINEERING COMMITTEE Inteface Pactices Subcommittee AMERICAN NATIONAL STANDARD ANSI/SCTE 48-1 2015 Test Method fo Measuing Shielding Effectiveness of Passive and Active Devices Using a GTEM Cell NOTICE
More informationComparative Study of various LNA topologies Used for CMOS LNA Design
Compaative Study of vaious LNA topologies Used fo CMOS LNA Design Sunny Gyamlani #1, Sameena Zafa *2, Jigisa Sueja #3, Jiga Chaudhai *4 # Electonics & Communication Depatment, R.G.P.V Univesity,Bhopal,India
More informationOptimization of the law of variation of shunt regulator impedance for Proximity Contactless Smart Card Applications to reduce the loading effect.
Optimization of the law of vaiation of shunt egulato impedance fo Poximity Contactless Smat Cad Applications to educe the loading effect. Catheine Maechal, Dominique Paet. Laboatoie LIT ESIGETEL, ue du
More informationUNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 650 NM RADIATION THERMOMETERS
XIX IMEKO Wold Congess Fundamental and Applied Metology Septembe 6 11, 29, Lisbon, Potugal UNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 65 NM RADIATION THERMOMETERS Fumihio Sakuma, Laina
More informationComparison of winding topologies in a pot core rotating transformer Smeets, J.P.C.; Encica, L.; Lomonova, E.
Compaison of winding topologies in a pot coe otating tansfome Smeets, J.P.C.; Encica, L.; Lomonova, E. Published in: Poceedings of the 2 2th Intenational Confeence on Optimiation of Electical and Electonic
More informationReceiver Contention Analysis in Asynchronous Transmission High-Speed Multichannel Networks
Receie Contention Analysis in Asynchonous Tansmission High-pee Multichannel etwoks IOAI E. OUTOURAKI Depatment of Electical & Compute Engineeing ational Technical Uniesity of Athens 57 73 Zogaphou, Athens
More informationSERVO CONTROL OF RF CAVITIES UNDER BEAM LOADING
SERVO CONTROL OF RF CAVITIES UNDER BEAM LOADING Alexande Gamp DESY, Hambug, Gemany Abstact I begin by giving a desciption of the RF geneato cavity beam coupled system in tems of basic quantities. Taking
More informationDesign of Microstrip Antenna for Wireless Local Area Network
Available Online at www.ijcsmc.com Intenational Jounal of Compute Science and Mobile Computing A Monthly Jounal of Compute Science and Infomation Technology IJCSMC, Vol. 4, Issue. 4, Apil 205, pg.36 365
More informationNovel Energy Management System for a DC MicroGrid
vel Enegy Management System fo a DC MicoGi Ashan Imantha Banaa 1, Pah Binuhewa 2, Lilantha Samaanayake 3, Janaka Ekanayake 4 Dept. of Electical Eng. Univesity of Peaeniya Peaeniya, Si Lanka e-mail: 1.
More informationPerformance Analysis of Z-Source Inverter Considering Inductor Resistance
Pefomance Analysis of Z-Souce Invete Consideing Inducto Resistance Fatma A. Khea * and Essam Eddin M. Rashad ** Electic Powe and Machines Engineeing Depatment, Faculty of Engineeing, anta Univesity, anta,
More informationSchool of Electrical and Computer Engineering, Cornell University. ECE 303: Electromagnetic Fields and Waves. Fall 2007
School of Electical and Compute Engineeing, Conell Univesity ECE 303: Electomagnetic Fields and Waves Fall 007 Homewok 1 Due on Nov. 8, 007 by 5:00 PM Reading Assignments: i) Review the lectue notes. ii)
More informationGAMMA SHAPED MONOPOLE PATCH ANTENNA FOR TABLET PC
GAMMA SHAPED MONOPOLE PATCH ANTENNA FOR TABLET PC Islam Md. Rafiqul, Mohammad Shawkat Habib and Khaizuan Abdullah Depatment of Electical and Compute Engineeing, Intenational Islamic Univesity Malaysia,
More informationAntenna fundamentals: With answers to questions and problems (See also Chapter 9 in the textbook.)
adio Technology Metopolia/A. Koivumäki Antenna fundamentals: With answes to questions and poblems (See also Chapte 9 in the textbook.) 1. a) Make up a definition fo the tem "antenna". Answe: One definition:
More informationPhotovoltaic Mercury Cadmium Telluride Detectors
Photovoltaic Mecuy Cadiu Tellui s Teledyne Judson Technologies LLC Coece Dive Montgoeyville, PA 89 USA Tel: -8-9 Fax: --7 Visit us on the web. ISO 9 Cetified www.teledynejudson.co / J9 PV MCT Opeating
More informationApplication Note MEASURING THE PERFORMANCE OF POWER SUPPLY REJECTION FEEDBACK AS USED IN CS44800/44600 DIGITAL CLASS-D PWM AMPLIFIERS
pplication Note MESURING THE PERFORMNCE OF POWER SUPPLY REJECTION FEEDCK S USED IN CS44800/44600 DIGITL CLSS-D PWM MPLIFIERS by Rany oueaux an Sean Davis 1. Intouction Most cuently available igital Class-D
More informationModeling and Simulation of a Boost DC/AC Inverter fed Induction Motor Drive
oeling an Simulation of a Boot DC/AC Inete fe Inuction oto Die Tolga Sügeil Douz Eylül Unieity, Faculty of Engineeing, Depatment of Electical & Electonic Engineeing, Kaynala Campu 560, Buca, Izmi, Tuey
More information77 GHz ACC Radar Simulation Platform
77 GHz ACC Rada Simulation Platfom Camilla Känfelt, Alain Péden, Ali Bazzi, Ghayath El Haj Shhadé, Mohamad Abbas, Thiey Chonavel and Fantz Bodeeau Abstact The development of a system simulation platfom
More informationA Novel Resonant LLC Soft-Switching Inverting-Buck Converter
Novel Resonant LLC Soft-Switching Inveting-Buck Convete Masoud Jabbai, Nahid Hematian Najafabadi, Ghazanfa Shahgholian, Mehdi Mahdavian Electical Engineeing Depatment, Najafabad Banch, Islamic zad Univesity,
More informationCavity Field Control - Cavity Theory. LLRF Lecture Part3.1 S. Simrock, Z. Geng DESY, Hamburg, Germany
Cavity Field Contol - Cavity Theoy LLRF Lectue Pat3.1 S. Simock, Z. Geng DESY, Hambug, Gemany Outline Intoduction to the Cavity Model Baseband Equations fo Cavity Model Diving Tem in Cavity Equations RF
More informationAvailable online at ScienceDirect. Procedia Engineering 100 (2015 )
Available online at www.sciencediect.com ScienceDiect Pocedia Engineeing 1 (215 ) 1 14 25th DAAAM Intenational Symposium on Intelligent Manufactuing and Automation DAAAM 214 Measuement of Complex Pemittivity
More informationTRANSFORMERLESS 1-PHASE ACTIVE POWER LINE CONDITIONERS
TRANSFORMERLESS HASE ATIVE OWER LINE ONDITIONERS Macin JARNUT, Gzegoz BENYSEK Univesity of Zielona Góa Zielona Góa (oland) Ryszad STRZELEKI Gdynia Maitime Univesity Gdynia (oland) Abstact ape poposes based
More informationMicrowave Finite Element Modeling Applications to Coupled Electromagnetic-Thermal Problems and Characterization of Dielectric Materials
Micowave Finite Element Modeling Applications to Coupled Electomagnetic-Themal Poblems and Chaacteization of Dielectic Mateials Hulusi Acikgoz, Yann Le Bihan, Olivie Meye, and Lionel Pichon Laboatoie de
More informationA Modified Bow Tie Antenna for RFID Application
SEI 9 5 th Intenational Coneence: Sciences o Electonic, echnologies o Inomation and elecommunications Mach -6, 9 UNISIA A Modiied Bow ie Antenna o FID Application Abdelhak FECHICHI*, Noueddine SBOUI* and
More informationISSN: [Reddy & Rao* et al., 5(12): December, 2016] Impact Factor: 4.116
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY SIMULATION COMPARISONS OF INDUCTION MOTOR DRIVE WITH ESTIMATOR AND PLL V. Nasi Reddy *, S. Kishnajuna Rao*, S.Nagenda Kuma * Assistant
More informationOTA MEASUREMENTS OF SMALL RADIO TERMINALS BY A SPHEROIDAL COUPLER
EUROPEAN COOPERATION IN THE FIELD OF SCIENTIFIC AND TECHNICAL RESEARCH EURO-COST SOURCE: Tokyo Institute of Technology, Japan COST1 TD(1)16 Bologna, Italy 1/Nov/3-5 OTA MEASUREMENTS OF SMALL RADIO TERMINALS
More informationECEN474: (Analog) VLSI Circuit Design Fall 2012
ECEN474: (Analo) LS Cicuit Desin Fall 0 Lectue 8: Cuent Mios Sam Palemo Analo & Mixed-Sinal Cente Texas A&M Univesity Announcements & Aenda HW due Monday Readin Razavi Chapte 5 Biasin in Cs Simple Cuent
More informationControl Limits of Three-Phase AC Voltage Controller under Induction Motor Load A. I. Alolah Ali M. Eltamaly R. M. Hamouda
Contol Liits of Thee-Phase AC Voltage Contolle unde Induction Moto Load A. I. Alolah Ali M. Eltaaly R. M. Haouda Abstact Thyistos ae now widely used in any powe electonics and otos dives applications.
More informationComparison Between Known Propagation Models Using Least Squares Tuning Algorithm on 5.8 GHz in Amazon Region Cities
106 Compaison Between Known Popagation Models Using Least Squaes Tuning Algoithm on 5.8 GHz in Amazon Region Cities Buno S. L. Casto, Mácio R. Pinheio, Gevásio P. S. Cavalcante Fedeal Univesity of Paá
More informationCHAPTER 4 STABILITY ANALYSIS OF INDUCTION GENERATORS USING STATCOM
116 CHAPTER 4 TABILITY ANALYI OF INDUCTION GENERATOR UING TATCOM 4.1 RENEWABLE WIND POWER UPPORT IN THE POWER YTEM Wind enegy is gaining apid momentum in the wold enegy balance. The installation of wind
More informationIntroduction to Antenna principles
What is an antenna? Intoduction to ntenna pinciples n antenna is a passive stuctue that seves as tansition between a tansmission line and ai used to tansmit and/o eceive electomagnetic waves. D. Sanda
More informationEfficient Virtual Slide Telepathology Systems with JPEG2000
Efficient Vitual Slie Telepathology Systems with JPEG2000 J.P. Otiz, V.G. Ruiz, an I. Gacia Univesity of Almeia, Spain ABSTRACT In the pesent pape we analyze the JPEG2000 stana an how to exploit all the
More informationFast Response I/O IC610MDL115
646 Specifications and Wiing Fast Response /O C6MDL5 The Fast Response /o module allows a Seies One o Seies One Plus PC to espond quickly to an input and/o monito vey shot input pulses. The module s fou
More informationHall effect sensors integrated in standard technology and optimized with on-chip circuitry
Eu. Phys. J. Appl. Phys. 36, 49 64 (006) DOI: 10.1051/epjap:006100 THE EUOPEAN PHYSICAL JOUNAL APPLIED PHYSICS Hall effect sensos integated in standad technology and optimized with on-chip cicuity J.-B.
More informationHelical Antenna Performance in Wideband Communications
Helical Antenna Pefomance in Wideband Communications Maja Šekelja 1, Zoan Blažević, Maino Maslać 3 1,,3 Univesity of Split, Faculty of Electical Engineeing, Mechanical Engineeing and Naval Achitectue,
More informationControl systems for high power Induction machines
Macel Ionel, Mihail-Floin Stan, Coneliu Ioan Salisteanu, Octavian Macel Ionel Contol systems fo high powe Induction machines MARCEL IONEL, MIHAIL-FLORIN STAN, CORNELIU IOAN SĂLIŞTEANU, OCTAVIAN MARCEL
More informationMC1458 MC1558 DUAL OPERATIONAL AMPLIFIERS.LOW POWER CONSUMPTION + - LARGE INPUT VOLTAGE RANGE NO LATCH-UP
MC1458 MC1558 DUAL OPEATIONAL AMPLIFIES.LOW POWE CONSUMPTION LAGE INPUT OLTAGE ANGE NO LATCH-UP. HIGH GAIN SHOT-CICUIT POTECTION NO FEQUENCY COMPENSATION EQUIED DESCIPTION The MC1458 is a high performance
More informationOptic Cable Tracking and Positioning Method Based on Distributed Optical Fiber Vibration Sensing
08 5th Intenational Confeence on Electical & Electonics Engineeing and Compute Science (ICEEECS 08) Optic Cable Tacking and Positioning Method Based on Distibuted Optical Fibe Vibation Sensing Zhang Chao,
More information