Recent Results with the UAV-based Array Verification and Calibration System

Size: px
Start display at page:

Download "Recent Results with the UAV-based Array Verification and Calibration System"

Transcription

1 Recent Results with the UAV-based Array Verification and Calibration System Giuseppe Virone POLITECNICO DI TORINO DIATI

2 Framework Research contract between INAF and CNR-IEIIT Title: Power Pattern Measurements on the Modern Low-Frequency Arrays for Radioastronomy (AAVSx, LOFAR, SAD) and Feasibility of Phase Pattern Measurements INAF PI: Jader Monari and Pietro Bolli CNR PI: Giuseppe Virone Partner : Politecnico di Torino- DIATI, Resp. Prof. Andrea M. Lingua Official initial date: September 2015 TECNO INAF 2014 Title: Advanced calibration techniques for next generation low-frequency radio astronomical arrays PI: Pietro Bolli (OAA) co-pi: Giuseppe Pupillo (IRA-MED) and Tonino Pisanu (OAC) Official initial date: April 2015 Research grant (18 months) to Salvo Pluchino (IRA-Noto) External collaborators: Stefan Wijnholds, Andrea Lingua and Giuseppe Virone

3 Flying Far-field Test Source A micro hexacopter is used as far-field RF source flying over the AUT RF transmitter UAV equipped with a continuous-wave RF transmitter and a dipole antenna The UAV autonomously performs quasi-rectilinear, constant height paths (GPS navigation) e.g. E-plane or H- plane cuts Automatic take-off and landing Differental GNSS system to track the position (accuracy few cm) Dipole antenna On-board IMU to measured attitude (pitch, roll, yaw)

4 Compass Verification DIATI Two scatterers on the UAV Two total station pointing the UAV (accuracy 1 cm) The other angles could be verified as well mean = - 0,547, std = ±0,867 4

5 AUT gain (dbi) SKALA 2.0 Pattern from 50 to 650 MHz Courtesy of Spin Flight at 50 MHz MHz 5 SKALA dual logperiodic antenna working from 50 to 650 MHz. Height is about 1.8 m -20 Co-polar meas. -25 Co-polar sim. X-polar meas. X-polar sim Zenith angle (deg) E-plane at 650 MHz

6 LOFAR campaign April 2016 in collaboration with Stefan Wijnholds and Menno Norden Aerial View of a LOFAR station (The Netherlands) UAV to perform an end-toend system verification LBA inner Three Arrays in Three Days with Multi-frequency TX (almost 300 Patterns/Flight) HBA half LBA outer Embedded Element Patterns Array Calibration and Pattern Antenna positions (SW s talk) Courtesy of LBAinner: 48 dual-pol elements (random quasi-dense) MHz LBAouter: 48 dual-pol elements (random sparse) MHz HBA: 48 tiles having 16 dual-pol bow-ties (dense) MHz

7 Normalized gain (dbi) LOFAR LBA antenna in Turin LOFAR Low-Band Antenna in Turin Courtesy of: LBA simulation by Michel Arts using WIPL-D 5 Normalized 60 MHz - E-plane LBA antenna consists of a pair of crossed inverted-v dipoles operating from 10 to 80 MHz. Antenna height is 1.7 m, width is about 3 m co-polar meas. co-polar sim. x-polar meas (deg)

8 Gain Measurement

9 Gain Measurement

10 AUT AUT Pattern Pattern (dbi) (dbi) AUT AUT Pattern Pattern (dbi) (dbi) Embedded Element Pattern LBA inner Extracted AUT MHz, volo2_autocorr_44p5mhz Extracted AUT MHz, volo2_autocorr_44p5mhz Extracted TW1, x scan, AUT average bearing: 88, RMS MHz, dev. volo2_autocorr_44p5mhz from ideal plane: 0.4 TW1, x CH scan, A: average H-plane bearing: cross-polar; 88, CH RMS B: dev. E-plane from co-polar ideal plane: 0.4 CH A: H-plane cross-polar; CH B: E-plane co-polar Element 0: E-plane 44.5 MHz Meas. A Sim. Meas. A A -15 Meas. Sim. A B -15 Sim. Meas. B B -20 Extracted AUT MHz, volo2_autocorr_44p5mhz Sim. B Extracted TW1, -30 x scan, AUT -20pattern bearing: 88, 0 RMS MHz, 10 dev. volo2_autocorr_44p5mhz volo2_autocorr_57mhz from ideal 20 plane: TW1, -30 x scan, CH -20 A: average H-plane -10 bearing: Zenith cross-polar; Angle 88, 0 CH RMS (Deg) B: dev. 10 E-plane from co-polar ideal 20 plane: CH A: H-plane cross-polar; Zenith Angle CH (Deg) B: E-plane co-polar MHz Meas. A Meas. A Sim. Meas. A A -15 Sim. A Meas. Sim. AB -15 Meas. B Sim. Meas. B B -20 Sim. B Sim. B Zenith Angle 0 (Deg) Zenith Angle (Deg)

11 AUT gain (dbi) AUT gain (dbi) AAVS0.5 Embedded Element Patterns at and 350 MHz Phi=0-50 MHz Mullard Radio Astronomy Observatory (UK) Courtesy of -20 pol A meas pol A sim -25 pol B meas pol B sim Zenith Angle (deg) Phi=0-350 MHz -20 co-pol meas co-pol sim -25 x-pol meas x-pol sim Zenith Angle (deg)

12 Phase (deg) Phase of Cross Correlation Coefficient at 44.5 MHz UAV at zenith above central element of the LBA inner Baseline 0-40 (length 13.7 m) No Average Averaged Measurement -Correction+Avg(UnCorr)+Avg(Correction) K(R 0 -R 40 ) Time (sec)

13 Deg Residual Phase Value Baseline 0-40 Averaged Trace (256 Sample) Average +/- estimated std Average +/- measured std Measured RMS RMS estimated from GNSS precision Time (sec) For shorter baselines where the elements see the UAV at the same observation angle, this residual correspond to the calibration coefficient

14 Second Day: Wind Speed 35 km/h Cause not yet fully understood The day before the wind was even faster. The UAV was not able to follow the preset path but was still able to land automatically The values of attitude angles (pitch about 20 Deg) are less accurate All the attitude traces are more noisy

15 Ideas for the Upcoming Cambridge pre-aavs1 Campaign Near-field scan and Relative Phase Measurements Phase Reference Correlator Measured Phase φ out = φ array φ ref K(R array -R ref )

16 Ongoing: Phase-Locked UAV Transmitter RF oscillator locked with the GNSS PPS signal Independent of Reference Antennas Copy of the transmitted signal Correlator Trimble: 10MHz + PPS Valon: 10 MHz ref MHz fout 16

17 Ongoing: UAV-based Sensitivity Measurements by G. Pupillo and S. Pluchino The proposed method allows to measure the Sensitivity (A eff / T sys ) of the system, including all its parts, in the operating environment. UAV The method estimates the Power Flux Density at AUT G Tx θ, φ PFD = P Tx G Tx θ, φ 4πR 2 [Wm 2 ] AUT R P meas PFD is defined as the transmitted UAV energy, impinging upon the AUT per unit area Soil

18 P meas [W] UAV-based Sensitivity measurements by G. Pupillo and S. Pluchino P high PFD sys = PFD highp low PFD low P high P high P low P low The sensitivity can be estimated by mean of PFD sys as follow: PFD sys O PFD low PFD high Where: P meas = measured received power [W] PFD low, PFD high = Surface Power Density Wm 2 corresponding to two different power level trasmissions by UAV Assumptions: Rx chain linearity Negligible T sys and gain variations PFD [Wm 2 ] A eff T sys = kb m 2 PFD sys K Tasks to be done: Error budget investigation Simulations Test on the field

19 Conclusion Good results obtained on single element, embedded-element patterns from 50 to 650 MHz UAV flying test source as an end-to-end verification and calibration system Advantages of UAV-based antenna measurements: Measurements in the real installation conditions Beam pattern measurements on arrays and instrument calibration are possible (see G. Pupillo, et al. Medicina Array Demonstrator: calibration and radiation pattern characterization using a UAV-mounted radio-frequency source, Experimental Astronomy, pp. 1-17, Apr Low cost, portability, no infrastructures

20

21 S21 (deg) S21 (db) Phase measurements - CABLES 35 LMR400 cable 1 Phase-shift variation with respect to meas. 1 at 10:15 AM 0.12 LMR400 cable 1 Attenuation variation with respect to meas. 1 at 10:15 AM Meas. 12 at 16:15 Meas. 11 at 15:45 Meas. 10 at 15:15 Meas. 9 at 14:15 Meas. 8 at 13:45 Meas. 7 at 13:15 Meas. 6 at 12:45 Meas. 5 at 12:15 Meas. 4 at 11:45 Meas. 3 at 11:15 Meas. 2 at 10: Meas. 12 at 16:15 Meas. 11 at 15:45 Meas. 10 at 15:15 Meas. 9 at 14:15 Meas. 8 at 13:45 Meas. 7 at 13:15 Meas. 6 at 12:45 Meas. 5 at 12:15 Meas. 4 at 11:45 Meas. 3 at 11:15 Meas. 2 at 10: Frequency (MHz) Frequency (MHz) 400 MHz 400 MHz 21

22 Relative Phase Measurements Reference characterization In a vertical Flight φ array is constant θ 1 max -θ 1 min θ 1 Reference will be characterized in the range from θ 1 min to θ 1 max Correlator φ out = φ array φ ref K(R array -R ref )

Il progetto SKA: misure di campo elettromagnetico mediante UAV

Il progetto SKA: misure di campo elettromagnetico mediante UAV Applied Electromagnetics and Electronic Devices group Il progetto SKA: misure di campo elettromagnetico mediante UAV in collaboration with POLITECNICO DI TORINO Environment, Land and Infrastructures Department

More information

SKA aperture array verification system: electromagnetic modeling and beam pattern measurements usingamicrouav

SKA aperture array verification system: electromagnetic modeling and beam pattern measurements usingamicrouav Exp Astron (218) 4:1 2 DOI 1.17/s1686-17-966-x ORIGINAL ARTICLE SKA aperture array verification system: electromagnetic modeling and beam pattern measurements usingamicrouav E. de Lera Acedo 1 & P. Bolli

More information

SKA Aperture Array Verification System: Electromagnetic modeling and beam pattern measurements using a micro UAV

SKA Aperture Array Verification System: Electromagnetic modeling and beam pattern measurements using a micro UAV SKA Aperture Array Verification System: Electromagnetic modeling and beam pattern measurements using a micro UAV E. de Lera Acedo 1, P. Bolli 2, F. Paonessa 3, G. Virone 3, E. Colin-Beltran 4, N. Razavi-Ghods

More information

Design considerations for a low-frequency Vivaldi array element

Design considerations for a low-frequency Vivaldi array element 1 Design considerations for a low-frequency Vivaldi array element A. Tibaldi 1, G. Virone, F. Perini, J. Monari, M. Z. Farooqui 1, M. Lumia, O. A. Peverini, G. Addamo, R. Tascone, and R. Orta 1 1 Dipartimento

More information

Smart Antennas in Radio Astronomy

Smart Antennas in Radio Astronomy Smart Antennas in Radio Astronomy Wim van Cappellen cappellen@astron.nl Netherlands Institute for Radio Astronomy Our mission is to make radio-astronomical discoveries happen ASTRON is an institute for

More information

Multi-Mode Antennas for Hemispherical Field-of-View Coverage

Multi-Mode Antennas for Hemispherical Field-of-View Coverage Multi-Mode Antennas for Hemispherical Field-of-View Coverage D.S. Prinsloo P. Meyer R. Maaskant M.V. Ivashina Dept. of Electrical and Electronic Engineering Dept. of Signals and Systems Stellenbosch, South

More information

Real World Results from a Signal Measurement Drone

Real World Results from a Signal Measurement Drone Real World Results from a Signal Measurement Drone Presented by Ian Gair SixArms IEEE BTS October 2017 1 Outline of this Presentation What we are measuring Quick recap of Drone Based measurements Case

More information

G. Serra.

G. Serra. G. Serra gserra@oa-cagliari.inaf.it on behalf of Metrology team* *T. Pisanu, S. Poppi, F.Buffa, P. Marongiu, R. Concu, G. Vargiu, P. Bolli, A. Saba, M.Pili, E.Urru Astronomical Observatory of Cagliari

More information

THE KAROO ARRAY TELESCOPE (KAT) & FPA EFFORT IN SOUTH AFRICA

THE KAROO ARRAY TELESCOPE (KAT) & FPA EFFORT IN SOUTH AFRICA THE KAROO ARRAY TELESCOPE (KAT) & FPA EFFORT IN SOUTH AFRICA Dr. Dirk Baker (KAT FPA Sub-system Manager) Prof. Justin Jonas (SKA SA Project Scientist) Ms. Anita Loots (KAT Project Manager) Mr. David de

More information

SKA-low and the Aperture Array Verification System

SKA-low and the Aperture Array Verification System SKA-low and the Aperture Array Verification System Randall Wayth AADCC Project Scientist On behalf of the Aperture Array Design & Construction Consortium (AADCC) AADCC partners ASTRON (Netherlands) ICRAR/Curtin

More information

P. 1 of 18 REPORT 1.1. TV ANTENNA RECONSTITUTION P. 1 of 18. Commercial in Confidence SAMPLE SITE (TV). 3 MARCH 2017.

P. 1 of 18 REPORT 1.1. TV ANTENNA RECONSTITUTION P. 1 of 18. Commercial in Confidence SAMPLE SITE (TV). 3 MARCH 2017. P. 1 of 18 Commercial in Confidence REPORT 1.1 TV ANTENNA RECONSTITUTION P. 1 of 18 SAMPLE SITE (TV). 3 MARCH 2017. 1/ EXECUTIVE SUMMARY Sixarms has been commissioned by the Client to verify the performance

More information

March Phased Array Technology. Andrew Faulkner

March Phased Array Technology. Andrew Faulkner Aperture Arrays Michael Kramer Sparse Type of AA selection 1000 Sparse AA-low Sky Brightness Temperature (K) 100 10 T sky A eff Fully sampled AA-mid Becoming sparse Aeff / T sys (m 2 / K) Dense A eff /T

More information

November SKA Low Frequency Aperture Array. Andrew Faulkner

November SKA Low Frequency Aperture Array. Andrew Faulkner SKA Phase 1 Implementation Southern Africa Australia SKA 1 -mid 250 15m dia. Dishes 0.4-3GHz SKA 1 -low 256,000 antennas Aperture Array Stations 50 350/650MHz SKA 1 -survey 90 15m dia. Dishes 0.7-1.7GHz

More information

New Trends on Receivers Development" May 30, 2005, Medicina. RECEIVING SYSTEMs for the ANTENNAS OPERATED by the INSTITUTE of RADIOASTRONOMY in ITALY

New Trends on Receivers Development May 30, 2005, Medicina. RECEIVING SYSTEMs for the ANTENNAS OPERATED by the INSTITUTE of RADIOASTRONOMY in ITALY New Trends on Receivers Development" May 30, 2005, Medicina RECEIVING SYSTEMs for the ANTENNAS OPERATED by the INSTITUTE of RADIOASTRONOMY in ITALY Alessandro Orfei IRA-INAF, Medicina station (Italy) RADIONET

More information

SKA1 low Baseline Design: Lowest Frequency Aspects & EoR Science

SKA1 low Baseline Design: Lowest Frequency Aspects & EoR Science SKA1 low Baseline Design: Lowest Frequency Aspects & EoR Science 1 st science Assessment WS, Jodrell Bank P. Dewdney Mar 27, 2013 Intent of the Baseline Design Basic architecture: 3-telescope, 2-system

More information

Development of a noval Switched Beam Antenna for Communications

Development of a noval Switched Beam Antenna for Communications Master Thesis Presentation Development of a noval Switched Beam Antenna for Communications By Ashraf Abuelhaija Supervised by Prof. Dr.-Ing. Klaus Solbach Institute of Microwave and RF Technology Department

More information

Dense Aperture Array for SKA

Dense Aperture Array for SKA Dense Aperture Array for SKA Steve Torchinsky EMBRACE Why a Square Kilometre? Detection of HI in emission at cosmological distances R. Ekers, SKA Memo #4, 2001 P. Wilkinson, 1991 J. Heidmann, 1966! SKA

More information

LOFAR: Special Issues

LOFAR: Special Issues Netherlands Institute for Radio Astronomy LOFAR: Special Issues John McKean (ASTRON) ASTRON is part of the Netherlands Organisation for Scientific Research (NWO) 1 Preamble http://www.astron.nl/~mckean/eris-2011-2.pdf

More information

Range Considerations for RF Networks

Range Considerations for RF Networks TI Technology Days 2010 Range Considerations for RF Networks Richard Wallace Abstract The antenna can be one of the most daunting components of wireless designs. Most information available relates to large

More information

Towards SKA Multi-beam concepts and technology

Towards SKA Multi-beam concepts and technology Towards SKA Multi-beam concepts and technology SKA meeting Meudon Observatory, 16 June 2009 Philippe Picard Station de Radioastronomie de Nançay philippe.picard@obs-nancay.fr 1 Square Kilometre Array:

More information

Beamforming for IPS and Pulsar Observations

Beamforming for IPS and Pulsar Observations Beamforming for IPS and Pulsar Observations Divya Oberoi MIT Haystack Observatory Sunrise at Mileura P. Walsh Function, Inputs and Outputs Function - combine the voltage signal from each of the 512 tiles

More information

FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 CERTIFICATION TEST REPORT FOR. WLAN 2X2 MIMO a/b/g/n/ac with BLUETOOTH

FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 CERTIFICATION TEST REPORT FOR. WLAN 2X2 MIMO a/b/g/n/ac with BLUETOOTH FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 CERTIFICATION TEST REPORT FOR WLAN 2X2 MIMO 802.11a/b/g/n/ac with BLUETOOTH MODEL NUMBER: P2180 REPORT NUMBER: 15U21878-E3V2 ISSUE DATE: NOVEMBER

More information

Vertical or horizontal antenna for limited space

Vertical or horizontal antenna for limited space Vertical or horizontal antenna for limited space If you have very limited space for a DX antenna, you may consider vertical, because it has low angle of radiation. But vertical polarization involves high

More information

> StarLab. Multi-purpose Antenna Measurement Multi-protocol Antenna Development Linear Array Antenna Measurement OTA Testing

> StarLab. Multi-purpose Antenna Measurement Multi-protocol Antenna Development Linear Array Antenna Measurement OTA Testing TECHNOLOGY Near-field / Spherical Near-field / Cylindrical SOLUTIONS FOR Multi-purpose Antenna Measurement Multi-protocol Antenna Development Linear Array Antenna Measurement OTA Testing 18 StarLab: a

More information

ANTENNA ELEMENTS INTEGRATED INTO THE PARACHUTES OF PLANETARY ENTRY PROBES

ANTENNA ELEMENTS INTEGRATED INTO THE PARACHUTES OF PLANETARY ENTRY PROBES WORKSHOP ANTENNA ELEMENTS INTEGRATED INTO THE PARACHUTES OF PLANETARY ENTRY PROBES Carlos Corral van Damme Maarten van der Vorst Rodolfo Guidi Simón Benolol GMV, 2006 Property of GMV All rights reserved

More information

Fourth Year Antenna Lab

Fourth Year Antenna Lab Fourth Year Antenna Lab Name : Student ID#: Contents 1 Wire Antennas 1 1.1 Objectives................................................. 1 1.2 Equipments................................................ 1

More information

BROADBAND GAIN STANDARDS FOR WIRELESS MEASUREMENTS

BROADBAND GAIN STANDARDS FOR WIRELESS MEASUREMENTS BROADBAND GAIN STANDARDS FOR WIRELESS MEASUREMENTS James D. Huff Carl W. Sirles The Howland Company, Inc. 4540 Atwater Court, Suite 107 Buford, Georgia 30518 USA Abstract Total Radiated Power (TRP) and

More information

RECOMMENDATION ITU-R S *

RECOMMENDATION ITU-R S * Rec. ITU-R S.1339-1 1 RECOMMENDATION ITU-R S.1339-1* Rec. ITU-R S.1339-1 SHARING BETWEEN SPACEBORNE PASSIVE SENSORS OF THE EARTH EXPLORATION-SATELLITE SERVICE AND INTER-SATELLITE LINKS OF GEOSTATIONARY-SATELLITE

More information

THE NASA/JPL AIRBORNE SYNTHETIC APERTURE RADAR SYSTEM. Yunling Lou, Yunjin Kim, and Jakob van Zyl

THE NASA/JPL AIRBORNE SYNTHETIC APERTURE RADAR SYSTEM. Yunling Lou, Yunjin Kim, and Jakob van Zyl THE NASA/JPL AIRBORNE SYNTHETIC APERTURE RADAR SYSTEM Yunling Lou, Yunjin Kim, and Jakob van Zyl Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive, MS 300-243 Pasadena,

More information

EMBRACE DS5 presentation

EMBRACE DS5 presentation EMBRACE presentation Paris 4 th September 2006 ASTRON, The Netherlands Acknowledgement The authors wish to acknowledge the enormous contribution of the whole EMBRACE team presently located at: ASTRON,

More information

Faculty of Electrical & Electronics Engineering BEE4233 Antenna and Propagation. LAB 1: Introduction to Antenna Measurement

Faculty of Electrical & Electronics Engineering BEE4233 Antenna and Propagation. LAB 1: Introduction to Antenna Measurement Faculty of Electrical & Electronics Engineering BEE4233 Antenna and Propagation LAB 1: Introduction to Antenna Measurement Mapping CO, PO, Domain, KI : CO2,PO3,P5,CTPS5 CO1: Characterize the fundamentals

More information

Amplifier Characterization in the millimeter wave range. Tera Hertz : New opportunities for industry 3-5 February 2015

Amplifier Characterization in the millimeter wave range. Tera Hertz : New opportunities for industry 3-5 February 2015 Amplifier Characterization in the millimeter wave range Tera Hertz : New opportunities for industry 3-5 February 2015 Millimeter Wave Converter Family ZVA-Z500 ZVA-Z325 Y Band (WR02) ZVA-Z220 J Band (WR03)

More information

You will need the following pieces of equipment to complete this experiment: Wilkinson power divider (3-port board with oval-shaped trace on it)

You will need the following pieces of equipment to complete this experiment: Wilkinson power divider (3-port board with oval-shaped trace on it) UNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING The Edward S. Rogers Sr. Department of Electrical and Computer Engineering ECE422H1S: RADIO AND MICROWAVE WIRELESS SYSTEMS EXPERIMENT 1:

More information

Scalable Front-End Digital Signal Processing for a Phased Array Radar Demonstrator. International Radar Symposium 2012 Warsaw, 24 May 2012

Scalable Front-End Digital Signal Processing for a Phased Array Radar Demonstrator. International Radar Symposium 2012 Warsaw, 24 May 2012 Scalable Front-End Digital Signal Processing for a Phased Array Radar Demonstrator F. Winterstein, G. Sessler, M. Montagna, M. Mendijur, G. Dauron, PM. Besso International Radar Symposium 2012 Warsaw,

More information

RF Technologies for Space Applications Oscar A. Peverini

RF Technologies for Space Applications Oscar A. Peverini SATCOM research activities @ CNR-IEIIT RF Technologies for Space Applications Oscar A. Peverini Introduction Development of radio-frequency antenna-feed systems for satellite applications in the framework

More information

Link Budgets International Committee on GNSS Working Group A Torino, Italy 19 October 2010

Link Budgets International Committee on GNSS Working Group A Torino, Italy 19 October 2010 Link Budgets International Committee on GNSS Working Group A Torino, Italy 19 October 2010 Dr. John Betz, United States Background Each GNSS signal is a potential source of interference to other GNSS signals

More information

ECC Recommendation (16)04

ECC Recommendation (16)04 ECC Recommendation (16)04 Determination of the radiated power from FM sound broadcasting stations through field strength measurements in the frequency band 87.5 to 108 MHz Approved 17 October 2016 Edition

More information

Final Examination. 22 April 2013, 9:30 12:00. Examiner: Prof. Sean V. Hum. All non-programmable electronic calculators are allowed.

Final Examination. 22 April 2013, 9:30 12:00. Examiner: Prof. Sean V. Hum. All non-programmable electronic calculators are allowed. UNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING The Edward S. Rogers Sr. Department of Electrical and Computer Engineering ECE 422H1S RADIO AND MICROWAVE WIRELESS SYSTEMS Final Examination

More information

Rec. ITU-R F RECOMMENDATION ITU-R F *

Rec. ITU-R F RECOMMENDATION ITU-R F * Rec. ITU-R F.162-3 1 RECOMMENDATION ITU-R F.162-3 * Rec. ITU-R F.162-3 USE OF DIRECTIONAL TRANSMITTING ANTENNAS IN THE FIXED SERVICE OPERATING IN BANDS BELOW ABOUT 30 MHz (Question 150/9) (1953-1956-1966-1970-1992)

More information

Ultrawideband Radiation and Propagation

Ultrawideband Radiation and Propagation Ultrawideband Radiation and Propagation by Werner Sörgel, Christian Sturm and Werner Wiesbeck LS telcom Summit 26 5. July 26 UWB Applications high data rate fine resolution multimedia localisation UWB

More information

Compact MIMO Antenna with Cross Polarized Configuration

Compact MIMO Antenna with Cross Polarized Configuration Proceedings of the 4th WSEAS Int. Conference on Electromagnetics, Wireless and Optical Communications, Venice, Italy, November 2-22, 26 11 Compact MIMO Antenna with Cross Polarized Configuration Wannipa

More information

Network Design Considerations and Deployment Concerns for a Ground Aircraft Communication System

Network Design Considerations and Deployment Concerns for a Ground Aircraft Communication System Network Design Considerations and Deployment Concerns for a Ground Aircraft Communication System CelPlan Technologies Leonhard Korowajczuk CEO/CTO Leonhard @celplan.com 703-259-4022 www.celplan.com 9/10/2013

More information

Theoretical Simulations of GNSS Reflections from Bare and Vegetated Soils

Theoretical Simulations of GNSS Reflections from Bare and Vegetated Soils Theoretical Simulations of GNSS Reflections from Bare and Vegetated Soils R. Giusto 1, L. Guerriero, S. Paloscia 3, N. Pierdicca 1, A. Egido 4, N. Floury 5 1 DIET - Sapienza Univ. of Rome, Rome DISP -

More information

Location, Location, Location Antenna Installation

Location, Location, Location Antenna Installation Location, Location, Location Antenna Installation Sensors I Session Dr. David Russell Technical Sales Manager GNSS Antenna Design Presentation Overview Presentation Overview Antenna Installation Interference

More information

On the Plane Wave Assumption in Indoor Channel Modelling

On the Plane Wave Assumption in Indoor Channel Modelling On the Plane Wave Assumption in Indoor Channel Modelling Markus Landmann 1 Jun-ichi Takada 1 Ilmenau University of Technology www-emt.tu-ilmenau.de Germany Tokyo Institute of Technology Takada Laboratory

More information

h max 20 TX Ionosphere d 1649 km Radio and Optical Wave Propagation Prof. L. Luini, July 1 st, 2016 SURNAME AND NAME ID NUMBER SIGNATURE

h max 20 TX Ionosphere d 1649 km Radio and Optical Wave Propagation Prof. L. Luini, July 1 st, 2016 SURNAME AND NAME ID NUMBER SIGNATURE Radio and Optical Wave Propagation Prof. L. Luini, July st, 06 3 4 do not write above SURNAME AND NAME ID NUMBER SIGNATURE Exercise Making reference to the figure below, the transmitter TX, working at

More information

Over the Air Testing: Important Antenna Parameters, Testing Methodologies and Standards

Over the Air Testing: Important Antenna Parameters, Testing Methodologies and Standards Over the Air Testing: Important Antenna Parameters, Testing Methodologies and Standards Alexander Naehring Rohde & Schwarz GmbH & Co. KG Muehldorfstr. 15, 81671 Munich, Germany Email: alexander.naehring@rohde-schwarz.com

More information

T- DualScan. StarLab

T- DualScan. StarLab T- DualScan StarLab StarLab is the ultimate tool for antenna pattern measurements in laboratories and production environments where space is limited, cost is critical, and the flexibility of a portable

More information

AN ADAPTIVE MOBILE ANTENNA SYSTEM FOR WIRELESS APPLICATIONS

AN ADAPTIVE MOBILE ANTENNA SYSTEM FOR WIRELESS APPLICATIONS AN ADAPTIVE MOBILE ANTENNA SYSTEM FOR WIRELESS APPLICATIONS G. DOLMANS Philips Research Laboratories Prof. Holstlaan 4 (WAY51) 5656 AA Eindhoven The Netherlands E-mail: dolmans@natlab.research.philips.com

More information

TEST RESULTS OF A DIGITAL BEAMFORMING GPS RECEIVER FOR MOBILE APPLICATIONS

TEST RESULTS OF A DIGITAL BEAMFORMING GPS RECEIVER FOR MOBILE APPLICATIONS TEST RESULTS OF A DIGITAL BEAMFORMING GPS RECEIVER FOR MOBILE APPLICATIONS Alison Brown, Huan-Wan Tseng, and Randy Kurtz, NAVSYS Corporation BIOGRAPHY Alison Brown is the President and CEO of NAVSYS Corp.

More information

4.4. Experimental Results and Analysis

4.4. Experimental Results and Analysis 4.4. Experimental Results and Analysis 4.4.1 Measurement of the IFA Against a Large Ground Plane The Inverted-F Antenna (IFA) discussed in Section 4.3.1 was modeled over an infinite ground plane using

More information

Radio Frequency Monitoring for Radio Astronomy

Radio Frequency Monitoring for Radio Astronomy Radio Frequency Monitoring for Radio Astronomy Purpose, Methods and Formats Albert-Jan Boonstra IUCAF RFI-Mitigation Workshop Bonn, March 28-30, 2001 Contents Monitoring goals in radio astronomy Operational

More information

Propagation mechanisms

Propagation mechanisms RADIO SYSTEMS ETIN15 Lecture no: 2 Propagation mechanisms Ove Edfors, Department of Electrical and Information Technology Ove.Edfors@eit.lth.se Contents Short on db calculations Basics about antennas Propagation

More information

Rev F. Nov 16, /16/2008 Rev F

Rev F. Nov 16, /16/2008 Rev F DF Antenna Subsystem Rev F Nov 16, 2008 R. A. WOOD ASSOCIATES 1001 Broad Street, t Suite 450 Utica, NY 13501 Voice: (315) 735-4217 Fax: (315) 735-4328 RAWood@rawood.com www.rawood.com Brief Overview of

More information

4GHz / 6GHz Radiation Measurement System

4GHz / 6GHz Radiation Measurement System 4GHz / 6GHz Radiation Measurement System The MegiQ Radiation Measurement System (RMS) is a compact test system that performs 3-axis radiation pattern measurement in non-anechoic spaces. With a frequency

More information

TEST RESULTS OF A HIGH GAIN ADVANCED GPS RECEIVER

TEST RESULTS OF A HIGH GAIN ADVANCED GPS RECEIVER TEST RESULTS OF A HIGH GAIN ADVANCED GPS RECEIVER ABSTRACT Dr. Alison Brown, Randy Silva, Gengsheng Zhang,; NAVSYS Corporation. NAVSYS High Gain Advanced GPS Receiver () uses a digital beam-steering antenna

More information

EMC Evaluation at Green Bank: Emissions and Shield Effectiveness

EMC Evaluation at Green Bank: Emissions and Shield Effectiveness EMC Evaluation at Green Bank: Emissions and Shield Effectiveness National Radio Astronomy Observatory Carla Beaudet Green Bank RFI Group Leader Emissions Evaluation: Standards ITU-R RA.769 specifies (typical)

More information

CHAPTER 5 THEORY AND TYPES OF ANTENNAS. 5.1 Introduction

CHAPTER 5 THEORY AND TYPES OF ANTENNAS. 5.1 Introduction CHAPTER 5 THEORY AND TYPES OF ANTENNAS 5.1 Introduction Antenna is an integral part of wireless communication systems, considered as an interface between transmission line and free space [16]. Antenna

More information

GNSS-R for Ocean and Cryosphere Applications

GNSS-R for Ocean and Cryosphere Applications GNSS-R for Ocean and Cryosphere Applications E.Cardellach and A. Rius Institut de Ciències de l'espai (ICE/IEEC-CSIC), Spain Contents Altimetry with Global Navigation Satellite Systems: Model correlation

More information

Experimental Evaluation Scheme of UWB Antenna Performance

Experimental Evaluation Scheme of UWB Antenna Performance Tokyo Tech. Experimental Evaluation Scheme of UWB Antenna Performance Sathaporn PROMWONG Wataru HACHITANI Jun-ichi TAKADA TAKADA-Laboratory Mobile Communication Research Group Graduate School of Science

More information

A LARGE COMBINATION HORIZONTAL AND VERTICAL NEAR FIELD MEASUREMENT FACILITY FOR SATELLITE ANTENNA CHARACTERIZATION

A LARGE COMBINATION HORIZONTAL AND VERTICAL NEAR FIELD MEASUREMENT FACILITY FOR SATELLITE ANTENNA CHARACTERIZATION A LARGE COMBINATION HORIZONTAL AND VERTICAL NEAR FIELD MEASUREMENT FACILITY FOR SATELLITE ANTENNA CHARACTERIZATION John Demas Nearfield Systems Inc. 1330 E. 223rd Street Bldg. 524 Carson, CA 90745 USA

More information

Narda DF Antennas - Datasheet. Datasheet

Narda DF Antennas - Datasheet. Datasheet Narda DF Antennas - Datasheet Datasheet To cover a wide frequency range with high sensitivity, Narda offers several directional antennas. Each antenna is optimized for their particular frequency range

More information

WIESON TECHNOLOGIES CO., LTD.

WIESON TECHNOLOGIES CO., LTD. WIESON 3D CHAMBER TEST REPORT G121HT632-1 Page 1 of 2 I. Summary: This report to account for the measurement setup and result of the Antenna. The measurement setup includes s-parameter, pattern, and gain

More information

ARRAY CONFIGURATION AND TOTAL POWER CALIBRATION FOR LEDA

ARRAY CONFIGURATION AND TOTAL POWER CALIBRATION FOR LEDA ARRAY CONFIGURATION AND TOTAL POWER CALIBRATION FOR LEDA Frank Schinzel & Joe Craig (UNM) on behalf of the LEDA Collaboration USNC-URSI National Radio Science Meeting 2013 - Boulder, 09.01.2013 What is

More information

Development of a Wireless Communications Planning Tool for Optimizing Indoor Coverage Areas

Development of a Wireless Communications Planning Tool for Optimizing Indoor Coverage Areas Development of a Wireless Communications Planning Tool for Optimizing Indoor Coverage Areas A. Dimitriou, T. Vasiliadis, G. Sergiadis Aristotle University of Thessaloniki, School of Engineering, Dept.

More information

Multi Band Passive Forward Scatter Radar

Multi Band Passive Forward Scatter Radar Multi Band Passive Forward Scatter Radar S. Hristov, A. De Luca, M. Gashinova, A. Stove, M. Cherniakov EESE, University of Birmingham Birmingham, B15 2TT, UK m.cherniakov@bham.ac.uk Outline Multi-Band

More information

Multi-functional miniaturized slot antenna system for small satellites

Multi-functional miniaturized slot antenna system for small satellites Multi-functional miniaturized slot antenna system for small satellites Jose Padilla, Frederic Bongard, Stefano Vaccaro (JAST SA, a ViaSat company) Gabriele Rosati, Juan Mosig (LEMA-EPFL) Anton Ivanov (Space

More information

Gain And Arbitrary Beamwidth Measurement For Identical Test Antennas

Gain And Arbitrary Beamwidth Measurement For Identical Test Antennas Simple Antenna Measurements Using DAMs5.0 Advanced Software DESKTOP ANTENNA TEST SYSTEM Gain And Arbitrary Beamwidth Measurement For Identical Test Antennas This note demonstrates the measurement proceeder

More information

SPHERICAL NEAR-FIELD SELF-COMPARISON MEASUREMENTS

SPHERICAL NEAR-FIELD SELF-COMPARISON MEASUREMENTS SPHERICAL NEAR-FIELD SELF-COMPARISON MEASUREMENTS Greg Hindman, Allen C. Newell Nearfield Systems Inc. 1973 Magellan Dr. Torrance, CA 952 ABSTRACT Spherical near-field measurements require an increased

More information

GPS-Aided INS Datasheet Rev. 3.0

GPS-Aided INS Datasheet Rev. 3.0 1 GPS-Aided INS The Inertial Labs Single and Dual Antenna GPS-Aided Inertial Navigation System INS is new generation of fully-integrated, combined GPS, GLONASS, GALILEO, QZSS, BEIDOU and L-Band navigation

More information

Prototype Software-based Receiver for Remote Sensing using Reflected GPS Signals. Dinesh Manandhar The University of Tokyo

Prototype Software-based Receiver for Remote Sensing using Reflected GPS Signals. Dinesh Manandhar The University of Tokyo Prototype Software-based Receiver for Remote Sensing using Reflected GPS Signals Dinesh Manandhar The University of Tokyo dinesh@qzss.org 1 Contents Background Remote Sensing Capability System Architecture

More information

Preparing VIRAC radiotelescope RT-32 for VLBI observations

Preparing VIRAC radiotelescope RT-32 for VLBI observations Preparing VIRAC radiotelescope RT-32 for VLBI observations Vl.Bezrukovs Ventspils University College, Latvia BAASP 2012 08 May, 2012 Outline RT-32 Current status Irbene Radio telescope RT-32 preparation

More information

EVLA System Commissioning Results

EVLA System Commissioning Results EVLA System Commissioning Results EVLA Advisory Committee Meeting, March 19-20, 2009 Rick Perley EVLA Project Scientist t 1 Project Requirements EVLA Project Book, Chapter 2, contains the EVLA Project

More information

Antenna and Propagation

Antenna and Propagation Antenna and Propagation This courseware product contains scholarly and technical information and is protected by copyright laws and international treaties. No part of this publication may be reproduced

More information

REVIEW ON THE ITALIAN RADIO TELESCOPE RECEIVERS RECOMMENDATIONS. P. Bolli (INAF-OAA) (on behalf of the WG)

REVIEW ON THE ITALIAN RADIO TELESCOPE RECEIVERS RECOMMENDATIONS. P. Bolli (INAF-OAA) (on behalf of the WG) REVIEW ON THE ITALIAN RADIO TELESCOPE RECEIVERS RECOMMENDATIONS P. Bolli (INAF-OAA) (on behalf of the WG) AGENDA Background Objectives (from #3 of ToR) Deliverable (from #5 of ToR) Process of the WG for

More information

FCC 47 CFR PART 15 SUBPART C INDUSTRY CANADA RSS-210 ISSUE 8 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR. 2.4GHz LE MODULE MODEL NUMBER: RN4020

FCC 47 CFR PART 15 SUBPART C INDUSTRY CANADA RSS-210 ISSUE 8 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR. 2.4GHz LE MODULE MODEL NUMBER: RN4020 FCC 47 CFR PART 15 SUBPART C INDUSTRY CANADA RSS-210 ISSUE 8 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR 2.4GHz LE MODULE MODEL NUMBER: RN4020 REPORT NUMBER: 14U17191-1 ISSUE DATE: MARCH 21, 2014

More information

Accurate Planar Near-Field Results Without Full Anechoic Chamber

Accurate Planar Near-Field Results Without Full Anechoic Chamber Accurate Planar Near-Field Results Without Full Anechoic Chamber Greg Hindman, Stuart Gregson, Allen Newell Nearfield Systems Inc. Torrance, CA, USA ghindman@nearfield.com Abstract - Planar near-field

More information

Traveling Wave Antennas

Traveling Wave Antennas Traveling Wave Antennas Antennas with open-ended wires where the current must go to zero (dipoles, monopoles, etc.) can be characterized as standing wave antennas or resonant antennas. The current on these

More information

ETS Lindgren Anechoic Chamber

ETS Lindgren Anechoic Chamber ETS Lindgren Anechoic Chamber Provides an electromagnetically quiet environment for measuring the radiating properties of a device-undertest Enclosed by an external metallic shielding to provide isolation

More information

Collection of technical reports on the electromagnetic analysis and design of the Northern Cross oriented to the BEST (SKADS) test bed.

Collection of technical reports on the electromagnetic analysis and design of the Northern Cross oriented to the BEST (SKADS) test bed. Collection of technical reports on the electromagnetic analysis and design of the Northern Cross oriented to the BEST (SKADS) test bed. Giuseppe Virone, Riccardo Tascone, Oscar Antonio Peverini, Giuseppe

More information

J/K). Nikolova

J/K). Nikolova Lecture 7: ntenna Noise Temperature and System Signal-to-Noise Ratio (Noise temperature. ntenna noise temperature. System noise temperature. Minimum detectable temperature. System signal-to-noise ratio.)

More information

FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR

FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-247 ISSUE 1 BLUETOOTH LOW ENERGY CERTIFICATION TEST REPORT FOR WLAN 2X2 MIMO 802.11a/b/g/n/ac with BLUETOOTH MODEL NUMBER: P2180 REPORT NUMBER: 15U21878-E2V1

More information

New Concepts of Transmitting Antennas for DMB and DVB-H

New Concepts of Transmitting Antennas for DMB and DVB-H New Concepts of Transmitting Antennas for DMB and DVB-H Hermann Zehetner Head of Broadcast Antenna Development hermann.zehetner@kathrein.de with the support of: Dr. Norbert Ephan Senior Manager New Technology

More information

Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: A first 300 GHz Phased Array Antenna Date Submitted: 11. July 2017 Source: Sebastian Rey, Technische Universität Braunschweig

More information

Realizing Efficient Wireless Power Transfer in the Near-Field Region Using Electrically Small Antennas

Realizing Efficient Wireless Power Transfer in the Near-Field Region Using Electrically Small Antennas Realizing Efficient Wireless Power Transfer in the Near-Field Region Using Electrically Small Antennas Ick-Jae Yoon and Hao Ling Dept. of Electrical Engineering, Technical University of Denmark Dept. of

More information

ANECHOIC CHAMBER EVALUATION

ANECHOIC CHAMBER EVALUATION ANECHOIC CHAMBER EVALUATION Antenna Measurement Techniques Association Conference October 3 - October 7, 1994 Karl Haner Nearfield Systems Inc. 1330 E. 223rd Street Bldg.524 Carson, CA 90745 USA (310)

More information

RADIOMETRIC TRACKING. Space Navigation

RADIOMETRIC TRACKING. Space Navigation RADIOMETRIC TRACKING Space Navigation October 24, 2016 D. Kanipe Space Navigation Elements SC orbit determination Knowledge and prediction of SC position & velocity SC flight path control Firing the attitude

More information

RECOMMENDATION ITU-R S.1512

RECOMMENDATION ITU-R S.1512 Rec. ITU-R S.151 1 RECOMMENDATION ITU-R S.151 Measurement procedure for determining non-geostationary satellite orbit satellite equivalent isotropically radiated power and antenna discrimination The ITU

More information

Developing wireless products can have antenna pitfalls if you don t know what to look for. Roger Denker, MegiQ, namens TOP-electronics

Developing wireless products can have antenna pitfalls if you don t know what to look for. Roger Denker, MegiQ, namens TOP-electronics Developing wireless products can have antenna pitfalls if you don t know what to look for. Roger Denker, MegiQ, namens TOP-electronics Early prototype development for IoT and 4G frequencies Antennas are

More information

Pattern-Reconfigurable Antennas Optimized for Automotive Applications

Pattern-Reconfigurable Antennas Optimized for Automotive Applications Pattern-Reconfigurable Antennas Optimized for Automotive Applications CST European Automotive Workshop, 23.11.2015 Jerzy Kowalewski, Tobias Mahler, Thomas Zwick INSTITUT FÜR HOCHFREQUENZTECHNIK UND ELEKTRONIK

More information

Politecnico di Torino. Porto Institutional Repository

Politecnico di Torino. Porto Institutional Repository Politecnico di Torino Porto Institutional Repository [Proceeding] Developing a low cost multipurpose X-band FMICW radar Original Citation: Lucianaz, C.; Bertoldo, S.; Petrini, P.; Allegretti, M. (2016).

More information

UNIVERSITI MALAYSIA PERLIS

UNIVERSITI MALAYSIA PERLIS UNIVERSITI MALAYSIA PERLIS SCHOOL OF COMPUTER & COMMUNICATIONS ENGINEERING EKT 341 LABORATORY MODULE LAB 2 Antenna Characteristic 1 Measurement of Radiation Pattern, Gain, VSWR, input impedance and reflection

More information

DAMs Universal Link Commander

DAMs Universal Link Commander Application Note #0428 May 2012 Revised: DAMs Universal Link Commander Application Note The Link Commander enables link analysis with or without DAMs measured data. It also enables range and Bit Error

More information

ELEC 425 Interference Control in Electronics Lecture 7(a) Introduction to Antennas: Terminology

ELEC 425 Interference Control in Electronics Lecture 7(a) Introduction to Antennas: Terminology Dr. Gregory J. Mazzaro Fall 017 ELEC 45 Interference Control in Electronics Lecture 7(a) Introduction to Antennas: Terminology Chapter 9 THE CITADEL, THE MILITARY COLLEGE OF SOUTH CAROLINA 171 Moultrie

More information

EISCAT Scientific Association Technical Specification and Requirements for Antenna Unit V 2.0

EISCAT Scientific Association Technical Specification and Requirements for Antenna Unit V 2.0 EISCAT Scientific Association Technical Specification and s for Antenna Unit V 2.0 1. Technical Specification for Antenna Unit The EISCAT Scientific Association, also called "EISCAT" throughout this document,

More information

EVLA Scientific Commissioning and Antenna Performance Test Check List

EVLA Scientific Commissioning and Antenna Performance Test Check List EVLA Scientific Commissioning and Antenna Performance Test Check List C. J. Chandler, C. L. Carilli, R. Perley, October 17, 2005 The following requirements come from Chapter 2 of the EVLA Project Book.

More information

Emission of mm-wave and THz Scanners

Emission of mm-wave and THz Scanners Emission of mm-wave and THz Scanners Thomas Kleine-Ostmann Working Group 2.21 Electromagnetic Fields and Antenna Measuring Techniques THz Security Workshop Davos, Switzerland, 29 th May, 2015 1 Content

More information

STATISTICAL DISTRIBUTION OF INCIDENT WAVES TO MOBILE ANTENNA IN MICROCELLULAR ENVIRONMENT AT 2.15 GHz

STATISTICAL DISTRIBUTION OF INCIDENT WAVES TO MOBILE ANTENNA IN MICROCELLULAR ENVIRONMENT AT 2.15 GHz EUROPEAN COOPERATION IN COST259 TD(99) 45 THE FIELD OF SCIENTIFIC AND Wien, April 22 23, 1999 TECHNICAL RESEARCH EURO-COST STATISTICAL DISTRIBUTION OF INCIDENT WAVES TO MOBILE ANTENNA IN MICROCELLULAR

More information

Project: IEEE P Working Group for Wireless Personal Area Networks N

Project: IEEE P Working Group for Wireless Personal Area Networks N Project: IEEE P802.15 Working Group for Wireless Personal Area Networks N (WPANs( WPANs) Title: [Introduction of vertically connected wireless system] Date Submitted: [ 14 JAN, 2004] Source: [Ami Kanazawa

More information

System configurations. Main features I SG 64 SOLUTION FOR

System configurations. Main features I SG 64 SOLUTION FOR T- DualScan SG 64 The most accurate solution for testing antennas and wireless devices: SG 64 has been developed to measure stand alone antennas or antennas integrated in subsystems. It is also ideal for

More information