| Patents for H01Q 23 - Aerials with active circuits or circuit elements integrated within them or attached to them (3,771) |
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| 07/21/1993 | CN2138841Y DC direction turning and amplification integrate TV receiving antenna |
| 07/20/1993 | US5230096 Radio receiver antenna arrangements |
| 07/20/1993 | CA1320564C Beam powered antenna |
| 07/16/1993 | CA2067001A1 Low loss, broadband stripline-to-microstrip transition |
| 07/07/1993 | CN2137822Y Fully-automatic tracing type tv antenna |
| 07/01/1993 | DE4244136A1 Integrated laminated microwave circuit for motor vehicle communication system - has antenna circuit on one side of substrate with transmit and receive circuit on other side |
| 06/15/1993 | US5219377 High temperature co-fired ceramic integrated phased array package |
| 06/09/1993 | EP0545742A1 Method and device for the rejection of harmonics emitted by an active antenna having electronic scanning |
| 06/08/1993 | US5218368 Array antenna with radiation elements and amplifiers mounted on same insulating film |
| 06/02/1993 | EP0544378A1 Phased array antenna module |
| 06/01/1993 | US5216695 Short pulse microwave source with a high prf and low power drain |
| 05/28/1993 | CA2083539A1 Phased array antenna module |
| 05/27/1993 | DE4138424A1 Receiver for directional HF and UHF radiation fields - has high conductivity quasi-surface element for specified reception and transmission frequency |
| 05/25/1993 | US5214394 High efficiency bi-directional spatial power combiner amplifier |
| 05/12/1993 | EP0540899A1 UHF Yagi antenna |
| 04/13/1993 | CA1316219C Card-type radio receiver having slot antenna integrated with housing thereof |
| 03/30/1993 | US5198824 High temperature co-fired ceramic integrated phased array packaging |
| 03/24/1993 | EP0532763A1 Array antenna for receiving communication signal |
| 03/24/1993 | CN2128781Y All-channel cordwood system deformation antenna |
| 03/17/1993 | EP0531877A1 FM radar system |
| 03/10/1993 | CN2128017Y U.V. compitable turning TV antenna |
| 02/10/1993 | EP0526643A1 Antenna device |
| 01/27/1993 | EP0524263A1 Antenna assembly |
| 01/21/1993 | WO1993001658A1 Radio receiving circuits |
| 01/20/1993 | EP0523272A1 Circuit arrangement for obtaining a constant field strength of an HF signal radiated by a transmitting device with exchangeable antenna |
| 01/20/1993 | EP0523271A1 Circuit arrangement for antenna coupling |
| 12/30/1992 | EP0520564A2 Circularly-polarized antenna and phase shift stripline device for such an antenna |
| 12/21/1992 | WO1993000724A1 Active integrated microstrip antenna |
| 12/21/1992 | CA2089894A1 Active integrated microstrip antenna |
| 12/17/1992 | DE4119784A1 Planar waveguide structure for integrated transceiver circuits - has semiconductor substrate rear as surface for incoming and-or radiation signals |
| 12/15/1992 | US5172126 Low noise lumped parameter active receiving antenna |
| 11/19/1992 | EP0513287A1 Motion detector unit. |
| 10/21/1992 | EP0509214A2 High-efficiency bi-directional spatial power combiner amplifier |
| 10/15/1992 | WO1992017916A1 Array antenna for receiving communication signal |
| 10/13/1992 | US5155492 Dual mode active aperture |
| 09/30/1992 | EP0505765A2 Integrated electronic warfare antenna receiver |
| 09/30/1992 | CN1064971A Automatic steering tv. antenna |
| 09/29/1992 | US5151708 Shortened mast antenna with compensating circuits |
| 09/23/1992 | EP0504842A1 Array antenna |
| 08/25/1992 | US5142698 Microwave integrated apparatus including antenna pattern for satellite broadcasting receiver |
| 08/13/1992 | DE4130608C1 DC power supply unit for antenna amplifier - measures impedance seen at receiver and switches off power supply voltage when impedance value indicates fault or short circuit |
| 08/11/1992 | US5138330 Pane antenna having an amplifier |
| 08/06/1992 | WO1992013393A1 Antenna device |
| 07/07/1992 | US5128689 Ehf array antenna backplate including radiating modules, cavities, and distributor supported thereon |
| 06/23/1992 | US5125109 Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna |
| 06/11/1992 | WO1992009905A1 Motion detector unit |
| 06/02/1992 | CA1302558C Portable antenna apparatus for satellite communication |
| 05/26/1992 | CA1301914C Antenna coupler |
| 04/22/1992 | CN2102571U Miniature garden type indoor tv antenna |
| 03/31/1992 | US5101211 Closed loop RF power amplifier output correction circuit |
| 03/25/1992 | EP0476675A1 Resonator-fed EHF distribution apparatus. |
| 03/21/1992 | CA2045856A1 Ehf array antenna backplate |
| 03/04/1992 | EP0472932A1 Electronic article surveillance tag and method for implementing same |
| 02/18/1992 | US5089827 Receiving antenna for a motor vehicle |
| 02/03/1992 | CA2041827A1 Electronic article surveillance tag and method for implementing same |
| 01/28/1992 | US5084707 Antenna system with adjustable beam width and beam orientation |
| 01/25/1992 | WO1992001953A1 Device for information transmission |
| 01/25/1992 | CA2087980A1 Device for information transmission |
| 01/21/1992 | US5083132 Planar antenna with active circuit block |
| 12/18/1991 | CN1057132A Tv antnna amplifying and rotating colinear device |
| 12/04/1991 | EP0459177A2 Solid state microwave generating array material, each element of which is phase controllable, and plasma processing systems |
| 12/04/1991 | CN2090113U Super long-range controlled steering enlarge antenna |
| 11/26/1991 | US5068833 Dynamic control circuit for multichannel system |
| 10/17/1991 | WO1991015878A1 Antenna assembly |
| 10/16/1991 | EP0451322A2 Dynamic control circuit for multichannel system |
| 10/16/1991 | CN1055449A Amplifying and steering party-line device of television antenna |
| 09/25/1991 | EP0447614A2 Antenna duplexer |
| 09/19/1991 | DE4007824A1 Vehicle antenna design with dipole elements - uses high frequency current blocking device in parallel with lower element |
| 09/18/1991 | EP0447194A2 Radio receiver antenna arrangements |
| 08/21/1991 | EP0442562A1 Antenna system with adjustable beam width and beam orientation |
| 08/20/1991 | CA1287916C Near-isotropic low-profile microstrip radiator especially suited for use as a mobile vehicle antenna |
| 07/24/1991 | CN2081579U Tv antenna amplifying steering unit |
| 07/23/1991 | US5034753 Acoustically coupled antenna |
| 07/23/1991 | US5034752 Multiple-beam antenna system with active modules and digital beam-forming |
| 07/23/1991 | US5034697 Magnetic amplifier switch for automatic tuning of VLF transmitting antenna |
| 07/09/1991 | US5030940 Electronic article surveillance tag and method for implementing same |
| 07/03/1991 | CN2080237U Amplifier of tv remote rotary antenna |
| 06/25/1991 | US5027107 Frequency sensor |
| 06/19/1991 | CN1052397A Amplify and turning connected in one feeder device for tv antenna |
| 06/12/1991 | CN2078930U Indoor all-channel aerial capable of enlarging tv screen |
| 05/28/1991 | US5019833 Portable antenna apparatus for satellite communication |
| 05/28/1991 | US5019830 Amplified FM antenna with parallel radiator and ground plane |
| 04/03/1991 | CN2074505U Indoor active tv aerial |
| 03/06/1991 | EP0415803A1 Receiving antenna for a motor vehicle |
| 02/07/1991 | WO1991001575A1 Signal separating device |
| 01/09/1991 | EP0407243A1 Multiple beam antenna system with active modules and with formation of beams by numerical calculation |
| 12/02/1990 | WO1990015479A1 Acoustically coupled antenna |
| 12/02/1990 | CA2056367A1 Acoustically coupled antenna |
| 11/22/1990 | EP0398555A2 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays |
| 11/16/1990 | CA2014665A1 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays |
| 10/23/1990 | US4965605 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays |
| 09/18/1990 | US4958163 Means for tuning an antenna |
| 09/12/1990 | EP0387003A1 A shortened mast antenna with compensated circuits |
| 09/12/1990 | EP0386678A1 Active vehicle receiving antenna, its antenna conductor being provided on or in a non-conductive surface inserted in a metallic vehicle body |
| 09/12/1990 | EP0386255A1 Active antenna |
| 09/12/1990 | CN2062119U Power supply automatic controller for tv shared antenna |
| 08/29/1990 | CN2061334U 混合放大远程电视接收天线 Hybrid amplification remote TV antenna |
| 08/22/1990 | EP0383657A1 Antenna system for the reception of direct broadcast satellite (DBS) emissions |
| 08/17/1990 | CA2010255A1 Antenna system for reception from direct broadcasting satellites |
| 08/01/1990 | CN2060014U Controller for preselecting aerial direction |