Patents for H01Q 21 - Aerial arrays or systems (25,127) |
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12/30/1997 | US5703599 Injection molded offset slabline RF feedthrough for active array aperture interconnect |
12/29/1997 | EP0814538A1 Integrated flat antenna and radio frequency unit for point-to-point microwave radio communications |
12/29/1997 | EP0814537A1 Method and radiating device below the horizon having a high ratio front/backward radiation |
12/24/1997 | WO1997049141A1 Meander antenna device |
12/23/1997 | US5701603 Radio apparatus having a plurality of antennas |
12/23/1997 | US5701591 Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
12/18/1997 | WO1997048237A1 Paging device having a transmit and receive antenna within a single enclosure |
12/17/1997 | EP0813310A1 Method and arrangement relating to signal transmission |
12/16/1997 | US5699069 Communication system |
12/10/1997 | EP0812028A2 Apparatus for and method of detecting a reflector within a medium |
12/10/1997 | EP0812026A2 A communication system and methods utilizing a reactively controlled directive array |
12/10/1997 | EP0812005A2 Post-reception focusing in remote detection systems |
12/10/1997 | EP0811277A1 Joint demodulation using spatial maximum likelihood |
12/10/1997 | EP0677212B1 Helical antenna system |
12/10/1997 | CN1167545A Antenna control system |
12/09/1997 | US5697075 Diversity apparatus for a global positioning system antenna |
12/04/1997 | WO1997045892A1 Elongated antenna |
12/02/1997 | US5694133 Adaptive direction finding system |
11/27/1997 | WO1997044978A1 Method and system for selecting an antenna beam of a base station of a radio system |
11/27/1997 | WO1997044914A1 Pcs cell site system for allowing a plurality of pcs providers to share cell site antennas |
11/26/1997 | CN1166259A Dynamic channel allocation for sectorized radio access units of a mobile communication system |
11/26/1997 | CN1166249A Spread spectrum radio transmission digital mobile communication device |
11/25/1997 | US5691730 Retractable broad-band antenna for portable telephones |
11/25/1997 | US5691726 GPS/radio antenna combination |
11/20/1997 | WO1997043799A1 Flat antenna |
11/19/1997 | EP0807992A1 Logarithmic spiral array |
11/19/1997 | EP0807990A1 Circularly symmetric, zero redundancy, planar array antenna |
11/18/1997 | CA2111394C Slotted leaky waveguide array antenna |
11/13/1997 | DE19627154C1 Digital radio communication station for mobile communications system |
11/12/1997 | EP0806121A1 Method and apparatus for providing redundant radio coverage within a cellular communication system |
11/12/1997 | CN1164779A Information transmission facilities and method using radiating guide system |
11/11/1997 | US5686928 Phased array antenna for radio frequency identification |
11/06/1997 | WO1997041622A1 Antenna system |
11/06/1997 | WO1997041621A1 Dual band antenna |
11/06/1997 | WO1997041619A1 Composite antenna for cellular and gps communications |
11/05/1997 | EP0805516A1 An omnidirectional antenna scheme |
11/05/1997 | EP0805515A2 Antenna cross-polar suppression means |
11/05/1997 | EP0805510A2 Active array self calibration |
11/05/1997 | EP0805508A2 Antenna array with radiation adjusting device |
11/05/1997 | EP0805360A2 Multibeam radar system |
11/04/1997 | US5684491 High gain antenna systems for cellular use |
10/30/1997 | WO1997040594A1 Dividable transmit antenna array for a cellular base station and associated method |
10/30/1997 | WO1997040548A1 Composite antenna |
10/30/1997 | CA2249583A1 Dividable transmit antenna array for a cellular base station and associated method |
10/29/1997 | EP0803932A1 Multiple band folding antenna |
10/29/1997 | EP0803930A2 Antenna system for controlling and redirecting communication beams |
10/29/1997 | CN1163495A Antema for mobile radio communication |
10/28/1997 | US5682165 Active array self calibration |
10/28/1997 | US5682143 Radio frequency identification tag |
10/23/1997 | WO1997039494A1 Antenna having improved front-to-back ratio |
10/23/1997 | WO1997039493A1 Portable radio device |
10/22/1997 | EP0802579A2 Multi sector antenna |
10/22/1997 | EP0802578A1 Planar antenna array and associated microstrip radiating element |
10/21/1997 | US5680633 Modular, portable data processing terminal for use in a radio frequency communication network |
10/16/1997 | WO1997038465A1 Dual polarization antenna array with very low cross polarization and low side lobes |
10/15/1997 | EP0801437A2 Beam forming network for multiple-beam-feed sharing antenna system |
10/15/1997 | EP0801434A1 Antenna |
10/14/1997 | US5678202 For receiving an electromagnetic signal |
10/12/1997 | CA2023481A1 Multiple polarization microstrip antenna, namely elementary antenna for faceplate-type network |
10/09/1997 | WO1997037441A1 Method and apparatus for polarization diversity in a base station using a plurality of reception antennas |
10/09/1997 | WO1997037440A1 Radio station with circularly polarised antennas |
10/09/1997 | WO1997037398A1 Antenna assembly for radiotelephonic device |
10/09/1997 | CA2249658A1 Radio station with circularly polarised antennas |
10/08/1997 | EP0800231A2 Planar antenna module |
10/08/1997 | EP0799507A1 Array of radiating elements |
10/07/1997 | US5675346 Annular microstrip antenna element and radial line antenna system employing the same |
10/07/1997 | US5675345 Compact antenna with folded substrate |
10/07/1997 | US5675343 Radiating-element array antenna |
10/01/1997 | EP0798807A2 TEM slot array antenna |
10/01/1997 | CN2263831Y High-gain multi-element antenna |
09/30/1997 | US5673052 Near-field focused antenna |
09/25/1997 | WO1997035360A1 Multi-frequency antenna |
09/25/1997 | WO1997035359A1 Array feed for axially symmetric and offset reflectors |
09/25/1997 | WO1997035358A1 Low cost compact electronically scanned millimeter wave lens and method |
09/25/1997 | WO1997035355A1 Planar emitter |
09/24/1997 | EP0797268A2 Antenna apparatus |
09/24/1997 | EP0533810B1 Microwave antennas |
09/24/1997 | CN2263406Y All channel receiving antenna for TV set |
09/18/1997 | WO1997034337A1 Method and device for adaptive polarization conversion |
09/18/1997 | DE19615497A1 Planarer Strahler Planar radiator |
09/18/1997 | DE19532731A1 Transceiver antenna especially for car telephone and radio |
09/17/1997 | EP0796024A2 Low power, short range point-to-multipoint communications system |
09/17/1997 | EP0795928A2 Antenna with single or double reflector, with shaped beams and linear polarisation |
09/17/1997 | EP0795211A1 An antenna feed network arrangement |
09/16/1997 | US5668558 Apparatus capable of receiving circularly polarized signals |
09/12/1997 | WO1997033382A1 An improved gps receiver utilizing a communication link |
09/12/1997 | WO1997033342A1 Planar array antenna |
09/12/1997 | WO1997033341A1 Single-wire spiral antenna |
09/12/1997 | CA2217730A1 Planar array antenna |
09/11/1997 | DE19608622A1 Aerial system with two aerials |
09/10/1997 | EP0793866A1 Planar antenna design |
09/10/1997 | EP0793865A1 Electrical conducting shell structure for coaxial collinear array antenna |
09/09/1997 | US5666128 Modular supertile array antenna |
09/09/1997 | US5666127 Subarray panel for solar energy transmission |
09/04/1997 | WO1997032360A1 Combination satellite and vhf/uhf receiving antenna |
09/04/1997 | WO1997032359A1 Folded bow-tie antenna |
09/04/1997 | WO1997032355A1 Antenna device for vehicles |
09/04/1997 | WO1997032353A1 Orthogonal switched antenna system |
09/03/1997 | EP0792564A1 Dynamic channel allocation for sectorized radio access units of a mobile communication system |
09/03/1997 | EP0707762B1 Mobile radio aerial installation |