| Patents for H01Q 3 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system (21,949) |
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| 01/19/1994 | EP0578815A1 Reduction of sidelobes in optical arrays |
| 01/18/1994 | US5280649 Superconducting balanced mixer |
| 01/18/1994 | US5280297 Active reflectarray antenna for communication satellite frequency re-use |
| 01/18/1994 | US5280292 Multi-port microwave coupler utilized in a beam forming network |
| 01/18/1994 | US5279165 Method and device for the measurement of wind-related stresses on a rotating system |
| 01/18/1994 | CA1326292C Antenna mounting |
| 01/12/1994 | CN2153147Y All-frequency channel active electronic resonance television receiving aerial and remote-controller thereof |
| 01/11/1994 | US5278562 Method and apparatus using photoresistive materials as switchable EMI barriers and shielding |
| 01/11/1994 | CA2099728A1 Automatic adjustment of receiver apparatus based on channel-bit-error-rate-related parameter measurement |
| 01/06/1994 | WO1994000890A1 Electromagnetic power distribution system |
| 01/06/1994 | WO1994000734A1 Method and apparatus of stud array upstand setting |
| 01/06/1994 | CA2137678A1 Method and apparatus of stud array upstand setting |
| 01/05/1994 | DE4320271A1 Satellite broadcast antenna reception condition indicator - has microcomputer for operational control and automatic voltage amplifying control detector |
| 01/05/1994 | CN2152310Y Full channel television receiving antenna |
| 01/04/1994 | US5276452 Scan compensation for array antenna on a curved surface |
| 01/04/1994 | US5276449 Radar retroreflector with polarization control |
| 12/29/1993 | EP0575808A1 Adjustable beam tilt antenna |
| 12/28/1993 | US5274844 Beam pattern equalization method for an adaptive array |
| 12/28/1993 | US5274389 Broadband direction finding system |
| 12/28/1993 | US5274388 Antenna device |
| 12/28/1993 | US5274386 Reduced hardware antenna beamformer |
| 12/28/1993 | US5274385 Optical time delay units for phased array antennas |
| 12/28/1993 | US5274384 For a phased array radar |
| 12/28/1993 | US5274383 Jammer signal rejection arrangement for a phased antenna array |
| 12/28/1993 | US5274381 Phased array antenna system |
| 12/28/1993 | CA1325675C Microwave phase scan antenna array |
| 12/23/1993 | WO1993026059A1 Millimeter wave beam deflector |
| 12/22/1993 | EP0575203A1 Antenna switching circuit for a diversity receiver |
| 12/21/1993 | US5272484 Recirculating delay line true time delay phased array antenna system for pulsed signals |
| 12/14/1993 | US5270725 Rotating antenna with wire dipoles |
| 12/14/1993 | US5270723 Near field antenna measurement systems and methods |
| 12/14/1993 | US5270671 Negative slope phase skewer |
| 12/14/1993 | US5269325 Analysis of biological signals using data from arrays of sensors |
| 12/14/1993 | CA1325260C Beamforming/null-steering adaptive array |
| 12/09/1993 | WO1993024971A1 Acoustically coupled antenna utilizing an overmoded configuration |
| 12/09/1993 | CA2097122A1 Adjustable beam tilt antenna |
| 12/08/1993 | EP0572950A1 Radar motion detector with variably adjustable transmit and receive direction angles |
| 12/08/1993 | CN2149020Y Remote controlling antenna steering machine capable of indicating position |
| 12/07/1993 | US5268697 Processing method for antenna pattern |
| 12/07/1993 | US5268696 Slotline reflective phase shifting array element utilizing electrostatic switches |
| 12/07/1993 | US5268692 Safe stopping distance detector, antenna and method |
| 12/02/1993 | DE4217426A1 Doppler-radar movement detector, e.g. for automatic door - is protected by cover over circuit board and substrate protruding from moulded cavity on frame around monitored space |
| 12/01/1993 | CN2148398Y Satellite antenna arrangement with simple setting function |
| 11/24/1993 | EP0570390A1 Improved tracking system |
| 11/23/1993 | US5264861 Circular polarization antenna |
| 11/23/1993 | US5264859 Electronically scanned antenna for collision avoidance radar |
| 11/23/1993 | US5264735 Superconducting non-linear device |
| 11/18/1993 | EP0570166A1 Interference detection and cancellation system and method |
| 11/18/1993 | EP0549718A4 Apparatus and methods for simulating electromagnetic environments |
| 11/18/1993 | DE4216065A1 Microwave signal A=D conversion by Mach-Zehnder modulator-interferometer - offsetting optical carriers by microwave frequency and feeding as electrical signals to comparator, with electric fields in optical waveguides differing by factor of two |
| 11/16/1993 | US5263189 Apparatus and method for correcting electrical path length phase errors |
| 11/16/1993 | US5262796 Optoelectronic scanning microwave antenna |
| 11/16/1993 | US5262789 Source identification system for closely separated spatial sources |
| 11/13/1993 | CA2094842A1 Intrusion detection and cancellation system and method |
| 11/11/1993 | WO1993022806A1 A folded lens antenna |
| 11/11/1993 | WO1993022805A1 Device for generating optical signals |
| 11/11/1993 | WO1993022804A1 Steerable beam helix antenna |
| 11/11/1993 | DE4225196C1 Electromagnetic screening device for electrical and mechanical rotary coupling - uses electrically conductive plastics ring seal in each annular gap between rotating and stationary coupling halves |
| 11/10/1993 | EP0569016A1 Molded plastic microwave antenna |
| 11/10/1993 | EP0568886A1 Circuit and phase shifters for generating signals for TACAN antennas |
| 11/10/1993 | EP0294413B1 Steerable beam antenna system using butler matrix |
| 11/10/1993 | CN2146056Y TV automatically-controlled steering antenna |
| 11/10/1993 | CN1078332A Parabolic antenna system capable of receiving multiple satellite signals |
| 11/09/1993 | US5260968 Method and apparatus for multiplexing communications signals through blind adaptive spatial filtering |
| 11/09/1993 | US5260820 Airborne fiber optic decoy architecture |
| 11/09/1993 | US5260711 Difference-in-time-of-arrival direction finders and signal sorters |
| 11/06/1993 | CA2095510A1 Circuit for generating rf signals for electronically scanned antennas and in particular for tacan systems, and phase shifter suitable for the same |
| 11/04/1993 | DE4312693A1 Double reflector antenna with concave surfaces on both main and auxiliary reflectors - reflects two beam bundles onto beam outlet aperture with dimensions equal to area of bundle overlap |
| 11/03/1993 | EP0568507A1 Method and arrangement for reducing fading between a base station and mobile units |
| 11/03/1993 | EP0568189A2 Antenna device |
| 11/02/1993 | WO1993022846A1 Wireless device |
| 11/02/1993 | US5258764 Satellite orientation detection system |
| 11/02/1993 | US5258763 Superconducting non-linear device |
| 10/30/1993 | CA2094096A1 Directional switched beam antenna |
| 10/27/1993 | EP0567228A2 Beam compression process for antenna patterns |
| 10/27/1993 | CN2144870Y High property special shape aerial |
| 10/27/1993 | CN2144868Y Aerial driver |
| 10/26/1993 | US5257032 Antenna system including spiral antenna and dipole or monopole antenna |
| 10/26/1993 | US5257031 Multibeam antenna which can provide different beam positions according to the angular sector of interest |
| 10/26/1993 | US5257030 Antenna system |
| 10/20/1993 | CN2144348Y Electricity-hand operated remote pitch device |
| 10/19/1993 | US5254997 Retrodirective interrogation responsive system |
| 10/16/1993 | CA2066112A1 Satellite signalling system having a signal beam with a variable beam area |
| 10/14/1993 | WO1993020455A1 Method and means for determining directional characteristics of large sensor or radiator arrays |
| 10/13/1993 | EP0565239A2 Beam compression process for the antenna pattern of antennas |
| 10/13/1993 | CN2143824Y Remote controller for TV outdoor aerial |
| 10/13/1993 | CN2143823Y DC remote control turning TV aerial |
| 10/13/1993 | CN1077314A 分集式天线 Diversity antenna |
| 10/12/1993 | US5253221 In combination with a sonar system |
| 10/12/1993 | US5253188 Built-in system for antenna calibration, performance monitoring and fault isolation of phased array antenna using signal injections and RF switches |
| 10/12/1993 | US5252983 Method for reducing side lobes in antenna patterns |
| 09/29/1993 | EP0314713B1 Three dimensional feed through lens with hemispherical coverage |
| 09/28/1993 | US5248984 Method for processing an antenna pattern |
| 09/28/1993 | US5248982 Method and apparatus for calibrating phased array receiving antennas |
| 09/28/1993 | US5248980 Spacecraft payload architecture |
| 09/28/1993 | US5248947 Microwave oscillator having microstrip antenna for test purposes |
| 09/28/1993 | US5248884 Infrared detectors |
| 09/28/1993 | US5247843 Apparatus and methods for simulating electromagnetic environments |
| 09/23/1993 | DE4307009A1 Multi-beam antenna device for radar system of e.g. automobile - has offset antenna supported by common holder with radar modules each having integral prim. radiator |
| 09/21/1993 | US5247310 Layered parallel interface for an active antenna array |