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