Patents
Patents for H01Q 9 - Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (23,053)
11/1999
11/16/1999US5986614 Antenna device
11/16/1999US5986609 Multiple frequency band antenna
11/16/1999US5986606 Planar printed-circuit antenna with short-circuited superimposed elements
11/16/1999CA2153465C Communications antenna structure
11/16/1999CA2023210C Spiral-antennae system
11/11/1999WO1999057785A1 Patch antenna
11/11/1999WO1999057784A1 Dual multitriangular antennas for gsm and dcs cellular telephony
11/11/1999WO1999057783A1 Broad band patch antenna
11/11/1999CA2295901A1 Dual multitriangular antennas for gsm and dcs cellular telephony
11/10/1999EP0955690A2 Compact wide band receiving and transmitting antenna
11/10/1999EP0955689A1 Plane antenna, and portable radio using same
11/10/1999EP0954886A1 A substantially flat, aperture-coupled antenna element
11/10/1999CN1234627A Antenna and production method therefor
11/10/1999CN1046382C Antenna device for mobile telephone
11/09/1999US5982336 Structure of super integrated down converter (SIDC) with dual band mechanical and notch filters
11/09/1999US5982332 Broad band transmit and receive antenna
11/09/1999US5982330 Antenna apparatus
11/09/1999US5982329 Single channel transceiver with polarization diversity
11/09/1999US5982326 Active micropatch antenna device and array system
11/09/1999US5982245 Radiating oscillator apparatus for micro-and millimeter waves
11/09/1999US5982103 Compact radio frequency transmitting and receiving antenna and control device employing same
11/04/1999WO1999056344A1 A left-hand circular polarized antenna for use with gps systems
11/04/1999WO1999056343A1 Antenna device for mobile radio communication
11/03/1999EP0954055A1 Dual-frequency radiocommunication antenna realised according to microstrip technique
11/03/1999EP0954054A1 Folded antenna
11/03/1999EP0954049A2 Circuit board bonding method, branch circuit and its designing method, waveguide-microstrip transition, and application to HF circuit, antenna and communication system
11/03/1999EP0830566A4 Light beam range finder
11/03/1999CN1233862A Folded antenna
11/02/1999US5977928 High efficiency, multi-band antenna for a radio communication device
11/02/1999US5977921 Circular-polarization two-way antenna
11/02/1999US5977920 Double antenna especially for vehicles
11/02/1999US5977919 TV antenna apparatus for vehicles
11/02/1999US5977916 Difference drive diversity antenna structure and method
11/02/1999US5977914 Microstrip antenna
11/02/1999US5977710 Patch antenna and method for making the same
10/1999
10/30/1999CA2267536A1 Radiocommunication device and dual frequency antenna produced using microstrip technology
10/28/1999WO1999054956A2 Ground extension arrangement for coupling to ground means in an antenna system, and an antenna system and a mobile radio device having such ground arrangement
10/28/1999DE19818206A1 Decimeter wave planar radiator with reflection attenuation
10/27/1999EP0952625A2 Antenna for several radio communications services
10/26/1999US5973646 Antenna device having a matching means
10/26/1999US5973644 Planar antenna
10/26/1999US5972156 Method of making a radio frequency identification tag
10/21/1999WO1999053568A1 Patch antenna
10/21/1999WO1999053567A1 Three dimensional micromachined electromagnetic device and associated methods
10/21/1999WO1999053566A1 Antenna assembly and a mobile radio apparatus using the same
10/21/1999WO1999009610A8 Antenna unit and signal switching circuit
10/21/1999DE19817573A1 Antenne für mehrere Funkdienste Antenna for multiple radio services
10/21/1999CA2328708A1 Three dimensional micromachined electromagnetic device and associated methods
10/20/1999EP0950269A1 Dual band antenna
10/20/1999EP0713611B1 In-glass antenna
10/20/1999EP0578701B1 Article sorting system
10/19/1999US5969690 Mobile radio antenna
10/19/1999US5969688 Cellular phone antenna with reactance cancellation
10/19/1999US5969685 Pivotable multiple frequency band antenna with capacitive coupling
10/19/1999US5969683 Radiotelephones with antenna matching switching system configurations
10/19/1999US5969682 Antenna apparatus and portable radio apparatus
10/19/1999US5969681 Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation
10/19/1999US5969680 Antenna device having a radiating portion provided between a wiring substrate and a case
10/19/1999US5969663 Time domain radio transmission system
10/14/1999WO1999052178A1 Compact spiral antenna
10/14/1999WO1999052175A1 Wide band antenna means incorporating a radiating structure having a band form
10/14/1999DE19815003A1 Dual polarisiertes Antennenelement Dual-polarized antenna element
10/14/1999DE19814048A1 Planar multi-patch, multi-range antenna with key-shaped directional diagram for low earth orbit satellites
10/12/1999US5966102 Dual polarized array antenna with central polarization control
10/12/1999US5966098 Antenna system for an RF data communications device
10/12/1999US5966097 Antenna apparatus
10/12/1999US5966096 Compact printed antenna for radiation at low elevation
10/07/1999WO1999050932A1 Antenna unit and digital television receiver
10/07/1999WO1999050929A1 Circuit and method for eliminating surface currents on metals
10/07/1999WO1999043037A3 Uniplanar dual strip antenna
10/06/1999EP0948084A2 Dual polarised antenna element
10/06/1999EP0947032A2 Retractable radiotelephone antennas and associated radiotelephone communication methods
10/06/1999EP0829112B1 Multiple band printed monopole antenna
10/06/1999CN1231071A Planar antenna with patch radiators for wide bandwidth and pass band function
10/06/1999CN1231069A Antenna system for RF data communications device
10/06/1999CN1230801A Portable telephone antenna circuit with reduced susceptibility to human body and method for realizing the same
10/05/1999US5963853 Method and arrangement relating to a telecommunication system
10/05/1999CA2190792C Antenna device having two resonance frequencies
09/1999
09/30/1999WO1999049535A1 Radio frequency antenna with integrated impedance matching element
09/30/1999DE19831193C1 Short rod antenna for automobile e.g. for automobile with sunroof or removable roof
09/29/1999CN1230037A Multifrequency microstrip antenna and device including said antenna
09/28/1999US5959586 Sheet antenna with tapered resistivity
09/28/1999US5959582 Surface mount type antenna and communication apparatus
09/23/1999WO1999048167A1 Antenna device having magnetic fastening means and ground coupling means capable of operating at multiple frequencies
09/23/1999WO1999040647B1 Rigid and flexible flat antenna
09/23/1999DE19806592A1 Mikrowellen-Bewegungssensor Microwave motion sensor
09/23/1999DE19709143A1 Microwave immersion sensor for measuring very different parameters, e.g. distance, fill level, moisture, material conc., density, etc., e.g. for measuring sol., emulsions or suspensions in industrial process measurement
09/22/1999EP0943104A1 Omnidirectional transponder
09/22/1999CN1229530A Wide-angle circular polarization antenna
09/21/1999US5955999 Antenna assembly for a radiotelephone
09/21/1999US5955996 Tunable fiberglass antenna
09/21/1999US5955995 Radio frequency antenna and method of manufacture thereof
09/16/1999WO1999046830A1 Method and tool for manufacturing an antenna unit, and an antenna unit
09/16/1999DE19810749A1 Radio set for use as terminal in mobile radio systems
09/15/1999EP0942488A2 Antenna device and radio device comprising the same
09/15/1999EP0942441A2 Coil element and method for manufacturing thereof
09/14/1999US5952983 High isolation dual polarized antenna system using dipole radiating elements
09/14/1999US5952975 Hand-held transmitting and/or receiving apparatus
09/14/1999US5952974 Antenna assembly and portable radio apparatus
09/14/1999US5952972 Broadband nonhomogeneous multi-segmented dielectric resonator antenna system