Patents
Patents for H01Q 23 - Aerials with active circuits or circuit elements integrated within them or attached to them (3,771)
08/1995
08/02/1995EP0665607A1 Active transmit phased array antenna with amplitude taper
08/01/1995US5438697 Microstrip circuit assembly and components therefor
07/1995
07/27/1995DE4401426A1 Short length dipole aerial with base in form of enclosed housing
07/18/1995US5434579 Inverted F antenna with non-contact feeding
07/12/1995CN2203502Y Double-waveband double-polarized satellite receiving antenna frequency step down device
07/05/1995CN2202977Y Active antenna rotation device
07/04/1995US5430451 Array antenna mounted on spacecrafts
06/1995
06/27/1995US5428830 Concealed antenna system with remote variable gain RF amplifier
06/21/1995EP0482131B1 Signal separating device
06/13/1995CA2121229C Antenna apparatus
06/08/1995WO1995015591A1 Planar antenna
06/08/1995DE4340824A1 Planar radiator for direct reception of television and satellite signals
05/1995
05/30/1995US5420599 Antenna apparatus
05/24/1995CN2198672Y High gain rotary TV aerial on balcony
05/18/1995DE4336191A1 Socket structure for mounting active rod antenna on motor vehicle
05/09/1995US5414427 Device for information transmission
05/03/1995EP0651459A1 Microwave strip antenna with integrated detector
05/03/1995CA2128763A1 Microwave patch antenna with embedded detector
04/1995
04/26/1995EP0650216A1 Antenna circuit
04/26/1995EP0650213A1 Array antenna and production process therefor
04/25/1995US5410749 Radio communication device having a microstrip antenna with integral receiver systems
04/19/1995CN2195139Y Active multidirectional all-channel TV receiving antenna
04/12/1995EP0647976A2 Plane array antenna for receiving satellite broadcasting
04/04/1995US5404581 Microwave . millimeter wave transmitting and receiving module
04/04/1995US5404148 Phased array antenna module
03/1995
03/21/1995US5400042 Dual frequency, dual polarized, multi-layered microstrip slot and dipole array antenna
03/21/1995US5400039 Integrated multilayered microwave circuit
03/14/1995US5398036 Shortened mast antenna with compensating circuits
02/1995
02/28/1995US5394159 Microstrip patch antenna with embedded detector
02/21/1995US5392152 Quasi-optic amplifier with slot and patch antennas
02/15/1995CN2189785Y Omnibearing receiving antenna of television
02/01/1995EP0637093A1 Antenna
01/1995
01/12/1995DE4323014A1 Active receiving antenna having an active signal path and a passive signal path
01/03/1995US5379452 Active frequency separating circuit
12/1994
12/07/1994CN2184986Y TV antenna amplifying and turning common line device
11/1994
11/22/1994US5367313 Array antenna for receiving radio communication
11/17/1994EP0624957A1 Antenna input receiving circuit
11/17/1994DE4315847A1 Connection between a transmitter and/or receiver and an antenna
11/16/1994CN1095194A Active transmit phased array antenna
11/15/1994US5365243 Planar waveguide for integrated transmitter and receiver circuits
11/09/1994EP0623967A1 Antenna apparatus
11/09/1994EP0623219A1 Device for wireless transfer of information
11/09/1994CN1026537C Amplifying and steering party-line device of television antenna
11/01/1994US5361405 Aircraft band radio receiver which does not radiate interfering signals
10/1994
10/26/1994EP0621654A2 An active antenna array
10/26/1994CN2181094Y U/V mixing type active multi-direction all-channel television antenna
10/20/1994CA2121153A1 Active antenna array
10/19/1994EP0346394B1 A transmit-receive means for phased-array active antenna system
10/18/1994US5357223 Connection device between an antenna and a microelectronic enclosure
10/13/1994WO1994023470A1 Low noise amplifier
10/06/1994DE4310532A1 Push-pull amplifier for an active dipole antenna
10/06/1994DE4310256A1 Reception arrangement for reception with antenna diversity
09/1994
09/20/1994US5349357 Circuit arrangement for obtaining a constant field strength of an HF signal radiated by a transmitting device with exchangeable antenna
08/1994
08/31/1994EP0613205A1 Window glass with a built- in radio circuit and vehicle with such a window glass
08/30/1994US5343173 Phase shifting network and antenna and method
08/23/1994CA2116052A1 Glass pane with built-in radio circuit, particularly windshields
08/23/1994CA2035599C Antenna system with adjustable beam width and beam orientation
08/18/1994DE4303110A1 Broadcast receiving system
08/16/1994US5339083 Transmit-receive module
08/10/1994CN2173995Y Three-dimensional V/U compatible combined element rotating antenna
08/04/1994DE4303072A1 Vehicle antenna with LF active transmission paths
07/1994
07/27/1994EP0608180A1 Method for fabrication of a window antenna and window antenna
06/1994
06/15/1994CN2169212Y TV picture enlarger with remote control direction turning
06/08/1994EP0600715A2 Active transmit phased array antenna
05/1994
05/11/1994DE4237824A1 Power supply circuit for antenna amplifier esp. in motor vehicle - provides for direct current feed through RF-by=passed diode as alternative to separate connection from battery
05/11/1994DE4237739A1 Transmission circuit for DC voltage from HF receiver to aerial amplifier - has coupling circuit for DC voltage feeding into aerial cable end, facing HF receiver
05/10/1994US5311198 Active antenna
05/03/1994US5309163 Active patch antenna transmitter
04/1994
04/27/1994EP0593822A1 Base station antenna arrangement
04/27/1994CN2163448Y Full frequency channel TV receiving active small antenna
04/26/1994US5307079 Short pulse microwave source with a high PRF and low power drain
04/20/1994CN2162714Y High gain, whole frequency channel change direction parabolic antenna
04/12/1994US5302960 Multi-element susceptibility room
03/1994
03/22/1994US5296866 Active antenna
03/08/1994US5293173 Signal separating device
03/08/1994CA1327643C Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna
02/1994
02/22/1994US5289197 Pane antenna having an amplifier
02/01/1994US5283587 Active transmit phased array antenna
01/1994
01/05/1994DE4220131A1 Active reception antenna using conductor loop - has interruption points in conductor loop and associated complex impedance providing reception min. in defined spatial direction
01/05/1994CN2152310Y Full channel television receiving antenna
12/1993
12/21/1993US5272485 Microstrip antenna with integral low-noise amplifier for use in global positioning system (GPS) receivers
12/08/1993EP0572701A1 Receiver device
12/03/1993CA2070204A1 Receiver device
11/1993
11/16/1993US5262783 Motion detector unit
10/1993
10/26/1993US5257033 Transmitter with a reduction of power of signals transmitted at harmonics
10/20/1993CN2144349Y All-frequency channel double-loop deformed aerial
09/1993
09/28/1993US5248977 One-dimensional electronic image scanner
09/28/1993US5248975 Ground probing radar with multiple antenna capability
09/23/1993DE4307009A1 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
09/16/1993DE4306056A1 Microstrip antenna having circular dielectric substrate - has emitter electrode with central clear volume in which circuit on board is moulded with external connections.
09/15/1993EP0559954A1 Active frequency band splitter
08/1993
08/25/1993CN2141128Y Amplifying aerial for ultra-low noise television receiver
08/24/1993US5239688 Multi-range, multi-use antenna adapter
08/24/1993US5239669 Coupler for eliminating a hardwire connection between a handheld global positioning system (GPS) receiver and a stationary remote antenna
08/19/1993WO1993016501A1 Navigational equipment
08/17/1993US5237334 Focal plane antenna array for millimeter waves
08/05/1993WO1993015418A1 Device for wireless transfer of information
08/05/1993WO1993015417A1 Device for information transfer
08/04/1993EP0553094A1 Device for information transmission.
07/1993
07/21/1993EP0551556A1 Low loss, broadband stripline-to-microstrip transition
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