Patents for H01Q 21 - Aerial arrays or systems (25,127) |
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09/02/1997 | US5663734 GPS receiver and method for processing GPS signals |
08/27/1997 | EP0792031A2 Receiving antenna scanning system in the VHF region for cars with controllable switching unit |
08/27/1997 | EP0791979A2 Phase tuning technique for a continuous transverse stub antenna array |
08/27/1997 | EP0791978A2 An antenna |
08/27/1997 | EP0791977A2 Mobile radio antenna |
08/27/1997 | EP0791233A1 Transmit and receive loop antenna |
08/26/1997 | US5661498 Polarization-universal radial line slot antenna |
08/26/1997 | US5661494 High performance circularly polarized microstrip antenna |
08/26/1997 | US5661457 Directional antenna configuration for asset tracking system |
08/21/1997 | WO1997030489A1 Dual band antenna means incorporating helical and elongated radiating structures |
08/20/1997 | EP0790711A1 Spread spectrum radio transmission digital mobile communication device |
08/20/1997 | EP0790663A1 Surface mounting antenna and communication apparatus using the same antenna |
08/20/1997 | EP0789938A1 An antenna control system |
08/20/1997 | CN1157493A Antenna device |
08/19/1997 | US5659322 Variable synthesized polarization active antenna |
08/13/1997 | EP0789419A1 Device and method for transmission of information for systems with radiating waveguides |
08/13/1997 | EP0789254A2 Detection of multiple articles |
08/13/1997 | EP0789253A2 Detection of multiple articles |
08/13/1997 | CN1157061A Method and antenna for providing omnidirectional pattern |
08/12/1997 | US5657033 Cofired ceramic notch and horn antennas |
08/12/1997 | US5657024 Radar module and radar system |
08/12/1997 | CA1339283C Self monitoring/calibrating phased array radar and an interchangeable, adjustable transmit/receive sub-assembly |
08/07/1997 | WO1997028615A1 Method and apparatus for cellular radiotelephone base stations using selected multiple diversity reception |
08/07/1997 | CA2242056A1 Method and apparatus for cellular radiotelephone base stations using selected multiple diversity reception |
08/06/1997 | EP0788186A1 Device in antenna units |
08/06/1997 | EP0788185A1 Switch attenuator |
08/06/1997 | EP0634058B1 Directional antenna, in particular a dipole antenna |
08/05/1997 | US5654724 Antenna providing hemispherical omnidirectional coverage |
08/05/1997 | US5654717 GPS/radio antenna combination |
07/30/1997 | EP0786826A2 Intermodulation scattering communications apparatus |
07/30/1997 | CN1155947A Transmit and receive loop antenna |
07/30/1997 | CA2196141A1 Portable radio apparatus |
07/24/1997 | WO1997026714A1 Antenna system for dual mode satellite/cellular portable phone |
07/24/1997 | CA2242480A1 Antenna system for dual mode satellite/cellular portable phone |
07/23/1997 | EP0785595A1 Antenna |
07/23/1997 | CN1155354A Planar antenna array and associated microstrip radiating element |
07/22/1997 | US5650793 Centered longitudinal series/series coupling slot for coupling energy between a boxed stripline and a crossed rectangular waveguide and antenna array employing same |
07/22/1997 | US5650792 Combination GPS and VHF antenna |
07/22/1997 | US5650788 Terrestrial antennas for satellite communication system |
07/16/1997 | CN1154579A Antenna apparatus, method of manufacturing same and method of designing same |
07/15/1997 | US5649308 Multiformat auto-handoff communications handset |
07/15/1997 | US5649306 Portable radio housing incorporating diversity antenna structure |
07/15/1997 | US5649287 Orthogonalizing methods for antenna pattern nullfilling |
07/15/1997 | US5648968 Narrow beam antenna systems with angular diversity |
07/15/1997 | US5648787 Penetrating microwave radar ground plane antenna |
07/15/1997 | US5648786 Conformal low profile wide band slot phased array antenna |
07/15/1997 | US5648767 Transponder detection system and method |
07/10/1997 | WO1997024626A2 Itinerary monitoring system |
07/09/1997 | EP0783190A1 Passive entry x-y-z transponder antenna |
07/09/1997 | EP0783189A1 Microwave planar antenna array for communicating with geostationary television satellites |
07/04/1997 | CA2194113A1 Receive and/or transmit microwave planar array antenna and use of said antenna for receiving geostationary satellite television signals |
07/03/1997 | WO1997023923A1 Low-cost communication phased-array antenna |
07/01/1997 | US5644322 Spacecraft antenna reflectors and stowage and restraint system therefor |
06/26/1997 | WO1997023019A1 Antenna assembly |
06/26/1997 | DE19549284A1 Train influencing device for point-wise transfer of data related to direction of travel from track to passing vehicles |
06/25/1997 | EP0779994A1 Radio frequency identification tag |
06/24/1997 | US5642358 Multiple beamwidth phased array |
06/24/1997 | US5642120 Antenna device and wireless apparatus employing the same |
06/19/1997 | WO1997022159A1 Dual polarized array antenna with central polarization control |
06/19/1997 | WO1997014049A3 Gps receiver and method for processing gps signals |
06/18/1997 | EP0778988A1 Antenna assembly |
06/18/1997 | CN1152195A Antenna device |
06/17/1997 | US5640170 Position and orientation measuring system having anti-distortion source configuration |
06/12/1997 | DE19650544A1 Flat antenna and phase comparison mono pulsed radar system |
06/12/1997 | DE19546010A1 Combined flat antenna for vehicle global positioning system and mobile radio |
06/11/1997 | EP0778632A1 Radio altimeter protected against various detections |
06/10/1997 | US5638079 Slotted waveguide array antennas |
06/05/1997 | WO1997020360A1 Antenna device |
06/04/1997 | EP0777293A1 Chip antenna having multiple resonance frequencies |
06/04/1997 | EP0776550A1 A receiver with an antenna array |
06/04/1997 | EP0776530A1 Method and antenna for providing an omnidirectional pattern |
06/04/1997 | CN2255670Y Complex oblong vibrator television receiving atnenna |
06/04/1997 | CN2255669Y Full frequency-channel multi-directional television receiving antenna |
06/03/1997 | US5635941 Method and apparatus for feeding over-modulated message signals to antennas of an antenna array |
05/28/1997 | EP0775373A1 Waveguide antenna |
05/28/1997 | EP0658281B1 Coaxial collinear element array antenna |
05/27/1997 | US5633613 Modulator-coupled transmission structure and method |
05/22/1997 | WO1997018674A1 Multichannel radio frequency transmission system to deliver wide band digital data into indepedent sectorized service areas |
05/22/1997 | CA2237304A1 System for decrypting television from several satellites |
05/22/1997 | CA2236088A1 Multichannel radio frequency transmission system to deliver wideband digital data into independent sectorized service areas |
05/21/1997 | CN1150498A Microstrip antenna array |
05/20/1997 | US5631898 For transmitting signals to a remote unit |
05/14/1997 | EP0773598A2 Aperture antenna |
05/14/1997 | EP0772893A1 Method for wireless communication system planning |
05/13/1997 | US5630226 Low-noise downconverter for use with flat antenna receiving dual polarized electromagnetic waves |
05/13/1997 | US5629713 Horizontally polarized antenna array having extended E-plane beam width and method for accomplishing beam width extension |
05/09/1997 | WO1997016865A1 Transponder employing microstrip double patch antenna |
05/07/1997 | EP0772254A1 A combined duplex filter and antenna |
05/06/1997 | US5628053 Integrated multilayered microwave circuit and a method of fabricating it |
05/06/1997 | US5627550 Wideband double C-patch antenna including gap-coupled parasitic elements |
05/01/1997 | WO1997015961A1 A linear diversity antenna |
05/01/1997 | WO1997015960A1 Antenna |
04/30/1997 | CN1148907A 天线系统 Antenna System |
04/29/1997 | US5625369 Graphic-display panel antennas |
04/29/1997 | US5625365 Dual-frequency microwave radio antenna system |
04/24/1997 | WO1997015094A1 Wideband antenna array |
04/23/1997 | CN2253056Y Active receiving antenna for television signal |
04/22/1997 | US5623269 Mobile communication satellite payload |
04/22/1997 | CA2076897C Broadband conformal inclined slotline antenna array |
04/17/1997 | WO1997014192A1 Very small aperture terminal and antenna for use therein |