| Patents for H01Q 11 - Electrically-long aerials having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements (4,834) |
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| 09/21/1999 | US5955999 Antenna assembly for a radiotelephone |
| 09/21/1999 | US5955997 Microstrip-fed cylindrical slot antenna |
| 09/15/1999 | EP0941557A1 A dielectric-loaded antenna |
| 09/14/1999 | US5952982 Broadband circularly polarized antenna |
| 09/14/1999 | US5952978 Contrawound toroidal antenna |
| 09/14/1999 | US5952974 Antenna assembly and portable radio apparatus |
| 09/08/1999 | EP0940924A2 Mobile terminal equipment for satellite and land mobile radio communication |
| 09/03/1999 | CA2263820A1 Mobile communication terminal equipment and its waiting reception method |
| 09/01/1999 | CN2336481Y Double-layer U band omni all-channel TV receiving antenna |
| 08/31/1999 | US5945964 Multi-band antenna structure for a portable radio |
| 08/31/1999 | US5945963 Dielectrically loaded antenna and a handheld radio communication unit including such an antenna |
| 08/31/1999 | US5945962 Broad band shaped element dipole antenna |
| 08/31/1999 | US5945953 Retractable antenna assembly for a portable radio apparatus |
| 08/26/1999 | WO1999043042A1 Dual band antenna for radio terminal |
| 08/25/1999 | EP0938158A2 Antenna |
| 08/24/1999 | US5943027 Telescopic antenna assembly |
| 08/19/1999 | WO1999041803A1 Adaptive multifilar antenna |
| 08/18/1999 | EP0935826A2 Radio communication apparatus |
| 08/17/1999 | US5940048 Conical omni-directional coverage multibeam antenna |
| 08/17/1999 | US5940045 Optimization of DC power to effective irradiated power conversion efficiency for helical antenna |
| 08/17/1999 | US5940043 Unidirectional field antenna for identification system |
| 08/10/1999 | US5936594 Highly isolated multiple frequency band antenna |
| 08/05/1999 | WO1999039403A1 Antenna device for dual frequency bands |
| 08/05/1999 | WO1999039402A1 Radio equipment |
| 08/03/1999 | US5933116 Chip antenna |
| 07/29/1999 | DE19802286A1 Helix antenna for cordless communications peripheral |
| 07/28/1999 | EP0932220A2 Multi-filar helical antenna and portable radio |
| 07/27/1999 | US5929824 Antenna element, conically helical, for polarization purity within a broad frequency range |
| 07/21/1999 | EP0929912A1 Multi band non-uniform helical antennas |
| 07/21/1999 | CN2330071Y Ultrahigh band TV receiving aerial |
| 07/20/1999 | US5926140 Antenna for portable radio unit |
| 07/20/1999 | US5926093 Drive circuit for reactive loads |
| 07/15/1999 | WO1999035708A1 Antenna device for portable telephone, and method of manufacture |
| 07/14/1999 | EP0929120A2 Double-stacked hourglass log periodic dipole antenna |
| 07/14/1999 | CN2329090Y Receiving antenna of TV set |
| 07/13/1999 | US5923305 Dual-band helix antenna with parasitic element and associated methods of operation |
| 07/08/1999 | WO1999034481A1 Antenna system for circularly polarized radio waves including antenna means and interface network |
| 07/08/1999 | WO1999034476A1 Retractable radiotelephone antennas with extended feeds |
| 07/06/1999 | US5920292 L-band quadrifilar helix antenna |
| 07/01/1999 | WO1999033147A1 Broadband antenna |
| 07/01/1999 | WO1999033146A1 Dual frequency quadrifilar helix antenna |
| 06/29/1999 | US5917455 Electrically variable beam tilt antenna |
| 06/23/1999 | EP0924794A2 Retractable antenna for a mobile telephone |
| 06/23/1999 | CN1220502A Method of producing helical antenna and helical antenna apparatus |
| 06/22/1999 | US5914697 Method of fabricating radio device helical antennas |
| 06/22/1999 | US5914689 Antenna for a portable, wireless communication device |
| 06/17/1999 | WO1999030384A1 Antenna and transmitter arrangement for eas system |
| 06/17/1999 | WO1999017398A3 Antennas with integrated windings |
| 06/17/1999 | WO1999017395A3 Quadrifilar antenna |
| 06/10/1999 | WO1999028989A1 Combination antenna device |
| 06/10/1999 | DE19752149A1 Antenna arrangement for keyless operation of automobile |
| 06/09/1999 | EP0920712A1 Bent-segment helical antenna |
| 06/09/1999 | CN1219291A Radio communication apparatus |
| 06/09/1999 | CN1219061A Antenna device of hand-held communication terminal |
| 06/08/1999 | US5910790 Broad conical-mode helical antenna |
| 06/02/1999 | EP0920073A1 Multi-filar helix antennae |
| 06/02/1999 | EP0919070A1 Highly isolated multiple frequency band antenna |
| 06/02/1999 | CN1218582A Helix antenna with built-in broadband power supply, and manufacture thereof |
| 06/02/1999 | CN1218581A Helical antenna with built-in duplexing means, and manufacture thereof |
| 06/02/1999 | CN1218308A Multi-band antenna suitable for use in mobile radio device |
| 06/01/1999 | US5909197 Deployable helical antenna stowage in a compact retracted configuration |
| 06/01/1999 | US5909196 To provide electrical signals to a receiver/transmit electrical signals |
| 05/27/1999 | WO1999026316A1 Dual mode quadrifilar helix antenna and associated methods of operation |
| 05/27/1999 | WO1999026311A1 Compact antenna feed circuits |
| 05/25/1999 | US5907306 Retractable radiotelephone antennas and associated radiotelephone communication methods |
| 05/19/1999 | EP0917241A1 Helical antenna and production method |
| 05/19/1999 | EP0916167A1 Dual-band coupled segment helical antenna |
| 05/18/1999 | US5905475 Antenna, particularly a mobile phone antenna, and a method to manufacture the antenna |
| 05/11/1999 | US5903823 Radio apparatus with distortion compensating function |
| 05/06/1999 | WO1999022421A1 Integrated circuit microsatellite |
| 05/06/1999 | WO1999022419A1 Multiple band telescope type antenna for mobile phone |
| 05/05/1999 | CN1216165A Couplec multi-segment helical autenna |
| 05/04/1999 | US5901367 Low insertion loss connection of an antenna to a mobile radio |
| 05/04/1999 | US5900844 Wide bandwidth antenna arrays |
| 05/04/1999 | US5900842 Inexpensive directional antenna that is easily tuned and weather resistant |
| 05/04/1999 | US5900839 Radio transmission apparatus comprising a retractable antenna and an antenna device for such apparatus |
| 04/27/1999 | US5898413 Surface mount antenna |
| 04/27/1999 | US5898410 Pre-tuned hybrid logarithmic yagi antenna system |
| 04/20/1999 | US5896113 Quadrifilar helix antenna systems and methods for broadband operation in separate transmit and receive frequency bands |
| 04/14/1999 | CN1214151A Antenna for frequences in excess of 200 MHZ |
| 04/14/1999 | CN1213868A Telescopic antenna assembly |
| 04/08/1999 | WO1999017398A2 Antennas with integrated windings |
| 04/08/1999 | WO1999017395A2 Quadrifilar antenna |
| 03/25/1999 | WO1999014819A1 Dual-band helix antenna with parasitic element |
| 03/24/1999 | CN1212078A Portable radio communication device |
| 03/23/1999 | US5886672 Collapsible antenna |
| 03/23/1999 | CA2135810C Antenna apparatus |
| 03/03/1999 | CN1209645A High-speed deepth-variable etching method and apparatus thereof |
| 02/25/1999 | WO1999009609A1 Method of manufacturing a contrawound toroidal helical antenna |
| 02/25/1999 | WO1999009608A1 Toroidal helical antenna |
| 02/25/1999 | WO1999009536A1 Drive circuit for reactive loads |
| 02/24/1999 | EP0897602A2 Multi-band concentric helical antenna |
| 02/23/1999 | US5874927 Tilted element antenna having increased effective aperture and method therefor |
| 02/16/1999 | US5872549 Feed network for quadrifilar helix antenna |
| 02/16/1999 | US5872547 Conical omni-directional coverage multibeam antenna with parasitic elements |
| 02/16/1999 | US5872543 Smithdom multiband antenna |
| 02/11/1999 | WO1999007032A1 Process for manufacturing a helix antenna |
| 02/10/1999 | EP0896385A1 Composite antenna |
| 02/10/1999 | EP0896384A2 Multi-band antenna suitable for use in a mobile radio device |
| 02/09/1999 | US5870681 Self-steering antenna array |