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Class Information
Number: 342/382
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Utilizing correlation techniques > Side lobe elimination > Mixing each antenna channel signal
Description: Subject matter wherein the receiving apparatus contains at least two antenna channels (main and auxiliary) which are connected to a mixing circuit.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8224271 Electronic device with an improved antenna arrangement Jul. 17, 2012
7936304 Method and system for isolating and reducing grating lobe interference May. 3, 2011
7912507 Amplifier gain control method and apparatus in multi-antenna radio system Mar. 22, 2011
7633998 Wireless home repeater for satellite radio products Dec. 15, 2009
7406337 Wireless communication system and method using multiple antennas Jul. 29, 2008
7346365 Smart antenna system and method Mar. 18, 2008
7251286 Method and apparatus for space division multiple access receiver Jul. 31, 2007
7231151 Cosite interference rejection system using an optical approach Jun. 12, 2007
7197336 Method and apparatus to combine radio frequency signals Mar. 27, 2007
7190746 Multiple lobe dot product detector for M-code GPS receivers Mar. 13, 2007
7187723 Local oscillation signal supply method and circuit therefor Mar. 6, 2007
7031669 Techniques for correcting for phase and amplitude offsets in a MIMO radio device Apr. 18, 2006
6947733 Method and apparatus for reducing self-interference in a mobile network Sep. 20, 2005
6917331 Signal detector employing coherent integration Jul. 12, 2005
6876693 Method for processing signal in communications system having plurality antennas Apr. 5, 2005
6823021 Method and apparatus for space division multiple access receiver Nov. 23, 2004
6771219 Adaptive beamforming method for smart antenna system Aug. 3, 2004
6728294 Radio communication system Apr. 27, 2004
6603427 System and method for forming a beam and creating nulls with an adaptive array antenna using antenna excision and orthogonal Eigen-weighting Aug. 5, 2003
6577271 Signal detector employing coherent integration Jun. 10, 2003
6275188 Nulling direct radiating array Aug. 14, 2001
6225948 Method for direction estimation May. 1, 2001
6218988 Array antenna transmitter with a high transmission gain proportional to the number of antenna elements Apr. 17, 2001
6147645 Adaptive reception diversity apparatus and adaptive transmission diversity apparatus Nov. 14, 2000
6067048 Radar apparatus May. 23, 2000
6056780 Method for the positioning of electromagnetic sensors or transmitters in an array May. 2, 2000
5990832 Antenna array for base station for radiocommunication with mobiles Nov. 23, 1999
5982327 Adaptive array method, device, base station and subscriber unit Nov. 9, 1999
5920286 Stabilisation of phased array antennas Jul. 6, 1999
5852420 Antenna device Dec. 22, 1998
5841400 Estimator of direction of desired signal Nov. 24, 1998
5757312 Method and apparatus for hard-wired adaptive cancellation May. 26, 1998
5485162 Method of performing beam compression process on antenna pattern of radar Jan. 16, 1996
5448247 Beam compression method for radar antenna patterns Sep. 5, 1995
5442365 Technique for processing interference-contaminated radar energy Aug. 15, 1995
5434578 Apparatus and method for automatic antenna beam positioning Jul. 18, 1995
5434577 Signal modulation methods and apparatus Jul. 18, 1995
5422637 Method of performing beam compression process on antenna pattern of radar Jun. 6, 1995
5327143 Multiple arm spiral antenna system with multiple beamforming capability Jul. 5, 1994
5296863 Beam compression process for antenna pattern Mar. 22, 1994
5296864 Beam compression process for antenna pattern Mar. 22, 1994
5252983 Method for reducing side lobes in antenna patterns Oct. 12, 1993
5243352 Method for processing antenna patterns Sep. 7, 1993
5144639 Spread-spectrum communication system Sep. 1, 1992
5089823 Matrix antenna array Feb. 18, 1992
4907004 Power versatile satellite transmitter Mar. 6, 1990
4888593 Time difference of arrival geolocation method, etc. Dec. 19, 1989
4734701 Null processing receiver apparatus and method Mar. 29, 1988
4612549 Interference canceller loop having automatic nulling of the loop phase shift for use in a reception system Sep. 16, 1986
4309769 Method and apparatus for processing spread spectrum signals Jan. 5, 1982

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