Presentation is loading. Please wait.

Presentation is loading. Please wait.

Sky noise measurements with a dual polarization active dipole antenna WORKSHOP January 14 and 15 2008, subatech Nantes Didier CHARRIER Subatech,

Published byJulianna Shaw Modified over 8 years ago

Similar presentations

Presentation on theme: "Sky noise measurements with a dual polarization active dipole antenna WORKSHOP January 14 and 15 2008, subatech Nantes Didier CHARRIER Subatech,"— Presentation transcript:

1 Sky noise measurements with a dual polarization active dipole antenna WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes Didier CHARRIER Subatech, Nantes, France Didier.charrier@subatech.in2p3.fr the CODALEMA collaboration http://codalema.in2p3.fr SUBATECH, Nantes Observatoire de Paris-Meudon Observatoire de Nançay LAL, Orsay ESEO, Angers LPSC, Grenoble LPCE, Orleans LAOB, Besançon (FRANCE)

2 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 2 Active dipole antenna used for CODALEMA Dipole antenna Total arm length = 1.21m Antenna height = 1m

3 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 3 Crossed polarised active dipole antenna Same preamplifier as the CODALEMA antenna Dual polarization V-shape radiator made of electric wires Total arm length = 3.22m Antenna height = 1.40m

4 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 4 Measurement setup -Measurement performed in a rural area at Vairé in Vendée (100km south of Nantes) -Dual polarization active antenna -Handheld spectrum analyzer R&S FSH -24/82MHz passband filter to avoid intermodulation created spectrum analyzer -12V battery to supply the active antenna LNA, 36dB Dual polar active antenna under test 24-82MHZ filter 15m cable Spectrum Analyser FSH 12V battery

5 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 5 North South and East West spectrum Accumulation of 17 sweep during one day LST

6 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 6 Galactic noise variations for few bands ~2.3dB ~2.7dB ~2.5dB ~2.7dB

7 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 7 Galactic noise variation for the 73/77MHz band -The measured galactic noise variation is about 2.5dB in both polarisations from 30MHZ to 80MHZ -This experiment should be performed with an automatic testbench to increase the statistics, and without passband filtering. ~2.5dB

8 didier.charrier@subatech.in2p3.fr WORKSHOP Radio@auger, January 14 and 15 2008, subatech Nantes 8 Measurement versus simulation Computed sky noise response with a NEC2 simulator and this sky temperature data

Download ppt "Sky noise measurements with a dual polarization active dipole antenna WORKSHOP January 14 and 15 2008, subatech Nantes Didier CHARRIER Subatech,"

Similar presentations

Antennas – G. Villemaud 0 4th year – Electrical Engineering Department Guillaume VILLEMAUD ANTENNAS Basics and Principles of Wireless Communications.

Antennas – G. Villemaud 0 4th year – Electrical Engineering Department Guillaume VILLEMAUD ANTENNAS Basics and Principles of Wireless Communications.
CNR IEIIT – Applied Electromagnetics Group AAVP, Dwingeloo, December 12-16 2011 AAVS0 Results, Dual-Polarized Vivaldi Antenna G. Virone, R. Tascone, A.

CNR IEIIT – Applied Electromagnetics Group AAVP, Dwingeloo, December AAVS0 Results, Dual-Polarized Vivaldi Antenna G. Virone, R. Tascone, A.
Jan Geralt Bij de Vaate DS4-T4 Wideband Integrated Antennas DS4-T4 Jan Geralt Bij de Vaate ASTRON.

Jan Geralt Bij de Vaate DS4-T4 Wideband Integrated Antennas DS4-T4 Jan Geralt Bij de Vaate ASTRON.
The Tianshan Radio Experiment for Neutrino Detection Genesis & status of the TREND project Autonomous radio-detection of air showers.

The Tianshan Radio Experiment for Neutrino Detection Genesis & status of the TREND project Autonomous radio-detection of air showers.
Chalmers University of Technology Development of a Coolable Decade Bandwidth Eleven Feed System for SKA & VLBI 2010 Radio Telescopes Per-Simon Kildal Chalmers.

Chalmers University of Technology Development of a Coolable Decade Bandwidth Eleven Feed System for SKA & VLBI 2010 Radio Telescopes Per-Simon Kildal Chalmers.
Foundation Licence Feeders and Antennas. What they do Feeder: transfers RF current between a transceiver and antenna without radiating radio waves. (Hope.

Foundation Licence Feeders and Antennas. What they do Feeder: transfers RF current between a transceiver and antenna without radiating radio waves. (Hope.
By: Deepika Thakur. Conceptual design of the Communication Subsystem.

By: Deepika Thakur. Conceptual design of the Communication Subsystem.
RFI shielding and mitigation techniques for a sensitive search for the 327 MHz line of Deuterium Alan E.E. Rogers, Joseph C. Carter, Preethi Pratap M.I.T.

RFI shielding and mitigation techniques for a sensitive search for the 327 MHz line of Deuterium Alan E.E. Rogers, Joseph C. Carter, Preethi Pratap M.I.T.
10 th PISA meeting on Advanced Detectors, May 21-27 2006 The knowledge of the amplitude leads to the Energy of the primary cosmic ray The Knowledge of.

10 th PISA meeting on Advanced Detectors, May The knowledge of the amplitude leads to the Energy of the primary cosmic ray The Knowledge of.
Optical simulation – March 04 1 Optical Simulation François BONDU VIRGO Tools Goals Example: tuning of modulation frequency A few questions.

Optical simulation – March 04 1 Optical Simulation François BONDU VIRGO Tools Goals Example: tuning of modulation frequency A few questions.
OEIC LAB National Cheng Kung University 1 Ching-Ting Lee Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University.

OEIC LAB National Cheng Kung University 1 Ching-Ting Lee Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University.
BDT Radio – 1b – CMV 2009/09/04 Basic Detection Techniques 1b (2009/09/04): Single pixel feeds Theory: Brightness function Beam properties Sensitivity,

BDT Radio – 1b – CMV 2009/09/04 Basic Detection Techniques 1b (2009/09/04): Single pixel feeds Theory: Brightness function Beam properties Sensitivity,
ANITA SMEX Final Presentation 2-November-2004 1 RF front end P. Gorham UH A N I T A.

ANITA SMEX Final Presentation 2-November RF front end P. Gorham UH A N I T A.
COST 286 – Joint technical action 1 (JTA1) Antenna/wire coupling in the near field simulation results Sinisa Antonijevic, Vesna Roje University of Split,

COST 286 – Joint technical action 1 (JTA1) Antenna/wire coupling in the near field simulation results Sinisa Antonijevic, Vesna Roje University of Split,
SKA AA-low: LPD antenna (SKALA) & path towards AAVS0 at Cambridge Eloy de Lera Acedo University of Cambridge 1 AAVP 2011: Taking the AA programme into.

SKA AA-low: LPD antenna (SKALA) & path towards AAVS0 at Cambridge Eloy de Lera Acedo University of Cambridge 1 AAVP 2011: Taking the AA programme into.
University of Split, FESB Short Term Scientific Mission of COST 286 Beneficiary: Jacek Skrzypczynski, Wroclaw University of Technology Host: Vesna Roje,

University of Split, FESB Short Term Scientific Mission of COST 286 Beneficiary: Jacek Skrzypczynski, Wroclaw University of Technology Host: Vesna Roje,
Selected Problems from Chapter 3. 45 o.

Selected Problems from Chapter o.
Array Antenna Designs for the SKA-AAlo Eloy de Lera Acedo 1 AAVP 2010, Cambridge, UK. 10/12/10.

Array Antenna Designs for the SKA-AAlo Eloy de Lera Acedo 1 AAVP 2010, Cambridge, UK. 10/12/10.
LOFAR Antenna Systems Dion Kant, Wim van Cappellen AAVP 2010 8 – 10 December 2010, Cambridge, UK.

LOFAR Antenna Systems Dion Kant, Wim van Cappellen AAVP – 10 December 2010, Cambridge, UK.
Name1 SKA(DS) System Design Aspects 4 th SKADS Workshop, Lisbon, 2-3 October 2008 SKA(DS) System Design Aspects: building a system Laurens Bakker.

Name1 SKA(DS) System Design Aspects 4 th SKADS Workshop, Lisbon, 2-3 October 2008 SKA(DS) System Design Aspects: building a system Laurens Bakker.

Similar presentations

Ads by Google