| Patents for H01Q 23 - Aerials with active circuits or circuit elements integrated within them or attached to them (3,771) |
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| 12/23/1999 | WO1999066595A1 Antenna assembly |
| 12/23/1999 | WO1999066592A1 One-point feeding polarized wave switching antenna |
| 12/22/1999 | EP0965150A1 Electronics unit for wireless transfer of signals |
| 12/22/1999 | CN1239397A 电子电路组件 Electronic circuit assembly |
| 12/21/1999 | US6005380 Sensitive slot antenna including inductively coupled squid array |
| 12/21/1999 | CA2155388C Electronic device having an rf circuit integrated into a movable housing element |
| 12/16/1999 | WO1999065251A2 Apparatus and method for detecting calling location of radio signal using short pulse |
| 12/16/1999 | WO1999065107A1 Phased-array antenna device |
| 12/15/1999 | CN2354249Y Double-frequency-range feeder for satellite television antenna |
| 12/14/1999 | US6001211 Method of producing a tag device with IC capacitively coupled to antenna |
| 12/09/1999 | WO1999063623A1 Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation |
| 12/09/1999 | WO1999063496A1 Monitoring system |
| 12/09/1999 | DE19823202A1 Fahrzeug-Antenneneinrichtung Vehicle antenna device |
| 12/08/1999 | CN1238076A Transmitter unit and base station |
| 12/08/1999 | CN1237807A Radiocommunications device, and slot loop antenna |
| 12/02/1999 | WO1999062136A1 Automobile antenna device |
| 12/01/1999 | EP0961344A1 Device for radiocommunication and a slot loop antenna |
| 11/30/1999 | US5995049 Radar module and antenna device |
| 11/30/1999 | US5994891 Electrically small, wideband, high dynamic range antenna having a serial array of optical modulators |
| 11/28/1999 | CA2272007A1 Radiocommunications device and loop slot antenna |
| 11/25/1999 | WO1999060661A1 Device for transmitting and receiving microwaves subjected to circular polarisation |
| 11/24/1999 | EP0958635A1 Antenna with variable geometry |
| 11/23/1999 | US5990835 Antenna assembly |
| 11/17/1999 | EP0957534A1 Circularly polarised HF wave transceiver |
| 11/17/1999 | EP0956652A1 Transmitter unit and base station |
| 11/17/1999 | EP0956648A1 Transmitter combiner arrangement |
| 11/09/1999 | US5982824 Method and apparatus for automatic gain control |
| 11/09/1999 | US5982328 Device with radiating elements |
| 11/09/1999 | US5982326 Active micropatch antenna device and array system |
| 11/09/1999 | US5982245 Radiating oscillator apparatus for micro-and millimeter waves |
| 11/02/1999 | US5977874 Relating to motion detection units |
| 10/21/1999 | WO1999009610A8 Antenna unit and signal switching circuit |
| 10/20/1999 | EP0950270A1 Method for integrating antennas in a distributed antenna system |
| 10/19/1999 | US5969692 Antenna support fabric |
| 10/19/1999 | US5969681 Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation |
| 10/07/1999 | WO1999050931A1 A radio apparatus loop antenna |
| 09/22/1999 | EP0943164A1 Antenna system for enhancing the coverage area, range and reliability of wireless base stations |
| 09/21/1999 | US5955752 Semiconductor module having antenna element therein |
| 09/16/1999 | DE19810749A1 Radio set for use as terminal in mobile radio systems |
| 09/15/1999 | EP0942527A2 Radiation shielding and power amplifier system and method for cellular phones |
| 09/14/1999 | US5952973 Planar antenna module |
| 09/14/1999 | US5952970 Antenna device and communication apparatus incorporating the same |
| 09/08/1999 | EP0940880A1 Radio relay apparatus |
| 09/02/1999 | WO1999044297A2 Method and apparatus for a distributed base station antenna system |
| 09/02/1999 | WO1999031755A3 Method and arrangement relating to antennas |
| 08/26/1999 | WO1999043038A1 An antenna including a circuit board |
| 08/24/1999 | US5943024 Feed assembly waveguide interface |
| 08/17/1999 | US5940046 Standardized modular antenna system |
| 08/10/1999 | US5936595 Integrated antenna phase shifter |
| 08/10/1999 | US5936591 Multi-beam feeding apparatus |
| 08/05/1999 | DE4244971C2 Integrated laminated microwave circuit for motor vehicle communication system |
| 08/04/1999 | EP0932939A1 Satellite broadcast system receiver |
| 08/03/1999 | US5933001 To detect incident electromagnetic radiation with an electric field sensor |
| 07/28/1999 | EP0835456B1 Improvements in or relating to motion detection units |
| 07/20/1999 | US5926510 Transmitter apparatus, receiver apparatus, transmitting method and receiving method for interleaving and varying an antenna directional pattern |
| 07/14/1999 | EP0928502A1 Microstrip antenna with control of the direction of the axis of maximum radiation |
| 07/14/1999 | CN1223018A 天线系统 Antenna System |
| 07/13/1999 | US5923289 Modular array and phased array antenna system |
| 07/07/1999 | EP0928076A1 Hybrid transmission system having a fallback solution for connections with high availability requirements |
| 06/24/1999 | WO1999031755A2 Method and arrangement relating to antennas |
| 06/22/1999 | US5915278 System for the measurement of rotation and translation for modal analysis |
| 06/02/1999 | EP0919071A1 Integrated transmitter or receiver device |
| 05/18/1999 | US5905471 Active receiving antenna |
| 05/18/1999 | US5905469 Windowpane antenna installation |
| 05/18/1999 | US5905465 Antenna system |
| 05/12/1999 | CN1216646A Satellite broadcast system receiver |
| 05/11/1999 | US5903239 Micro-patch antenna connected to circuits chips |
| 04/29/1999 | WO1999021246A1 Self-contained masthead units for cellular communication networks |
| 04/29/1999 | CA2307091A1 Self-contained masthead units for cellular communication networks |
| 04/28/1999 | CN2316726Y External aerial for radio telephone |
| 04/27/1999 | US5898909 Ultra high frequency radio communication apparatus |
| 04/27/1999 | US5898403 Antenna formed of multiple dielectric substrates including shielded LC filter |
| 04/20/1999 | US5896183 TV or radio broadcast transmission line amplifier with switch bypass controlled at the receiver side |
| 04/20/1999 | US5896104 FM radar system |
| 04/13/1999 | US5894289 Portable communication device |
| 04/13/1999 | US5894287 Polarization diversity device for reducing fading effect |
| 04/13/1999 | CA2134008C Array antenna and production process therefor |
| 04/08/1999 | WO1999017460A1 Receiving antenna device |
| 04/07/1999 | CN2313297Y Television antenna |
| 03/24/1999 | EP0623219B1 Device for wireless transfer of information |
| 03/23/1999 | US5886671 Low-cost communication phased-array antenna |
| 03/18/1999 | WO1999013591A1 Receiver in an antenna base |
| 03/11/1999 | DE19739395A1 Empfänger in einem Antennenfuß Receiver antenna in a |
| 03/10/1999 | EP0901182A2 GPS wave antenna apparatus |
| 03/03/1999 | EP0898461A1 A system for measuring and indicating changes in the resistance of a living body |
| 03/02/1999 | US5877726 Antenna device |
| 02/25/1999 | WO1999009610A1 Antenna unit and signal switching circuit |
| 02/17/1999 | CN1208261A Antenna circuit having matching circuit and method for implementing the same |
| 02/16/1999 | US5872369 Solid-state antenna switch and field-effect transistor |
| 01/26/1999 | US5864321 Microwave terrestrial radio with dovetail attachment and reference plane |
| 01/20/1999 | EP0892461A1 An antenna assembly |
| 12/30/1998 | EP0888040A2 Structure for shielding an electronic circuit from radio waves |
| 12/29/1998 | US5854611 In a wireless communication system |
| 12/29/1998 | US5854480 Tag with IC capacitively coupled to antenna |
| 12/17/1998 | WO1998057391A1 Integrated transmitter or receiver device |
| 12/16/1998 | EP0884854A2 Microwave detector |
| 12/16/1998 | EP0884799A2 Semiconductor module having antenna element therein |
| 12/16/1998 | CN1202048A Antenna reconance control apparatus |
| 12/01/1998 | US5844407 Method using squid array for improving the sensitivity of a slot antenna |
| 11/25/1998 | EP0879424A1 Radio frequency identification reader |