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Class Information
Number: 342/427
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > With self-orienting antenna pattern > Monopulse or pseuodo monopulse tracking antenna type
Description: Subject matter wherein tracking of the signal source is accomplished by comparing overlapping pattern or lobe signals received by the receiver antenna to determine any discrepancy between the direction of the signal source, and any discrepancy is reduced to pointing error signals used for correcting the pointing direction of the antenna.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8427371 RF feed network for modular active aperture electronically steered arrays Apr. 23, 2013
8396491 Location information management method and network device Mar. 12, 2013
8305265 Radio-based direction-finding navigation system using small antenna Nov. 6, 2012
7999738 Systems and methods for tracking a remote source and orientation control Aug. 16, 2011
7990316 Antenna system having feed subarray offset beam scanning Aug. 2, 2011
7911371 Extraction of relative signals from closely spaced targets in a monopulse system Mar. 22, 2011
7864099 Low cost short range radar Jan. 4, 2011
7463191 Antenna beam steering and tracking techniques Dec. 9, 2008
7450068 Phased array antenna beam tracking with difference patterns Nov. 11, 2008
7372401 Multitracking of collocated satellites May. 13, 2008
7202815 Method and apparatus for location determination Apr. 10, 2007
7126532 Apparatus for tracing an optimal direction to receive satellite signal in active phase array antenna system Oct. 24, 2006
7030813 Array antennas with independent sum and difference excitations levels Apr. 18, 2006
6954176 Device and method for an antenna array with switchable wide-angle coverage Oct. 11, 2005
6950064 System and method for ascertaining angle of arrival of an electromagnetic signal Sep. 27, 2005
6930637 Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system Aug. 16, 2005
6847327 Base station, base station module and method for direction of arrival estimation Jan. 25, 2005
6831601 Circular array scanning with sum and difference excitation Dec. 14, 2004
6759982 Radio direction and position finding apparatus Jul. 6, 2004
6618008 Monopulse phased array system Sep. 9, 2003
6570535 Single-receiver multiple-antenna RF autotrack control May. 27, 2003
6567034 Digital beamforming radar system and method with super-resolution multiple jammer location May. 20, 2003
6459406 GPS patch antenna attitude reference system Oct. 1, 2002
6456238 Dynamic signal routing in electronically scanned antenna systems Sep. 24, 2002
6452543 GPS patch antenna attitude reference method Sep. 17, 2002
6400315 Control system for electronically scanned phased array antennas with a mechanically steered axis Jun. 4, 2002
6377212 Radar apparatus employing a sidelobe blanking system Apr. 23, 2002
6373435 Radio direction and position finding apparatus Apr. 16, 2002
6320541 Off-axis indicator algorithm for electrically large antennas Nov. 20, 2001
6246365 Radar apparatus Jun. 12, 2001
6236361 Precision beacon tracking system May. 22, 2001
6211813 Compact monopulse source for a focal feed reflector antenna Apr. 3, 2001
5986605 Method for improving monopulse processing of aperture segment outputs Nov. 16, 1999
5943011 Antenna array using simplified beam forming network Aug. 24, 1999
5929808 System and method for the acquisition of a non-geosynchronous satellite signal Jul. 27, 1999
5854609 Satellite tracking method for vehicle-mounted antenna system Dec. 29, 1998
5754140 Beam sharpened, low sidelobe antenna system May. 19, 1998
5612702 Dual-plane monopulse antenna Mar. 18, 1997
5604504 Air traffic advisory system bearing estimation receiver Feb. 18, 1997
5506589 Monopulse array system with air-stripline multi-port network Apr. 9, 1996
5432519 Method of performing beam compression process on antenna pattern of radar Jul. 11, 1995
5302961 Antenna aperture with mainlobe jammer nulling capability Apr. 12, 1994
5283588 Monopulse tracking apparatus Feb. 1, 1994
5268697 Processing method for antenna pattern Dec. 7, 1993
5250953 Tracking radar systems Oct. 5, 1993
5248984 Method for processing an antenna pattern Sep. 28, 1993
5072224 Monopulse processing systems Dec. 10, 1991
5030959 Enhanced automatic bearing indicator system Jul. 9, 1991
5030960 Monopulse antenna with improved sidelobe suppression Jul. 9, 1991
5017929 Angle of arrival measuring technique May. 21, 1991

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