Control device for the formation of several simultaneous radar reception beams for an electronic scanning antenna

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6417804
SERIAL NO

09696166

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A control device for the formation of plural simultaneous radar reception beams in an electronic scanning antenna. The electronic scanning antenna includes an array of detectors of a reception microwave signal arranged in n columns and m rows. The control device makes, in the microwave domain, a first partial combination of the signals received, the first combination being made according to each column. An optical device makes a second partial combination in the optical domain, the optical device including at least n optical sources each producing an optical signal modulated at the frequency of the reception microwave signal by an associated microwave combination signal. The optical signal is divided into r optical signals to obtain nxr optical signals. An optical phase-shifting device is provided for each of the nxr optical signals obtained, and r combining devices combine each group of n optical signals, and r detectors detect the microwave signal f assigned to each group of n optical signals to form r microwave reception beams. The control device can be applied especially to a simple and flexible reconfiguration of reception beams of an electronic scanning antenna.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THOMSON-CSFPARIS198

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maas, Olivier Gif S/Yvette, FR 2 14
Merlet, Thomas Dourdan, FR 3 16

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TRW INC. (1)
* 4725844 Fiber optical discrete phase modulation system 44 1987
 
HUGHES ELECTRONICS CORPORATION (1)
5861845 Wideband phased array antennas and methods 55 1998
 
NATIONAL RESEARCH COUNCIL OF CANADA (1)
* 5131748 Broadband optical detection of transient motion from a scattering surface by two-wave mixing in a photorefractive crystal 44 1991
 
HER MAJESTY THE QUEEN AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE OF HER MAJESTY'S CANADIAN GOVERNMENT (1)
* 4686533 Optoelectronically switched phase shifter for radar and satellite phased array antennas 16 1983
 
The United States of America as represented by the Secretary of the Navy (1)
* 5917970 Wavelength multiplexed, electro-optically controllable, fiber optic multi-tap delay line 16 1998
 
FUJITSU LIMITED (1)
* 5909297 Drift compensating circuit for optical modulators in an optical system 36 1997
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
DAS PHOTONICS S.L (1)
* 9651738 Distributed feeding circuit for antenna beamforming array 0 2014
 
KATHREIN-WERKE KG (3)
7132979 Calibration apparatus for a switchable antenna array, and an associated operating method 7 2003
* 7068218 Calibration device for an antenna array, antenna array and methods for antenna array operation 11 2003
* 2004/0032,366 Calibration apparatus for a switchable antenna array, as well as an associated operating method 0 2003
 
BAE SYSTEMS PLC (1)
8466848 Beam shaping for wide band array antennae 0 2006
 
LOCKHEED MARTIN CORPORATION (4)
7801447 Method and system for signal processing by modulation of an optical signal with a multichannel radio frequency signal 1 2006
* 2010/0221,015 METHOD AND SYSTEM FOR SIGNAL PROCESSING BY MODULATION OF AN OPTICAL SIGNAL WITH A MULTICHANNEL RADIO FREQUENCY SIGNAL 2 2006
* 7724179 Miniaturized microwave-photonic receiver 2 2008
* 2009/0051,582 MINIATURIZED MICROWAVE-PHOTONIC RECEIVER 3 2008
 
RAYTHEON COMPANY (2)
* 7248343 Amplitude-weighted spatial coherent processing for LADAR system 2 2004
* 2007/0097,352 AMPLITUDE-WEIGHTED SPATIAL COHERENT PROCESSING FOR LADAR SYSTEM 0 2004
* Cited By Examiner