| Patents for H01Q 19 - Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic (10,176) |
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| 01/28/1998 | EP0686313B1 Antenna system |
| 01/28/1998 | CN1171667A Transmitter-receiver |
| 01/27/1998 | US5712643 Planar microstrip Yagi Antenna array |
| 01/22/1998 | DE4125386A1 Radiation sensor suitable for radar or communication system |
| 01/20/1998 | US5710569 Antenna system having a choke reflector for minimizing sideward radiation |
| 01/20/1998 | US5709968 Non-aqueous electrolyte secondary battery |
| 01/15/1998 | WO1998001922A1 Focused narrow beam communication system |
| 01/15/1998 | WO1998001771A1 A beam sharpened, low sidelobe antenna system |
| 01/14/1998 | CN1170306A Electromagnetic wave imaging system |
| 01/13/1998 | US5708447 Antenna having a parabolic reflector |
| 01/13/1998 | US5708446 Printed circuit antenna array using corner reflector |
| 01/08/1998 | DE19725047A1 Parabolic reflector antenna energising system |
| 01/08/1998 | DE19623196C1 Radarsensor für den Einsatz in Kraftfahrzeugen Radar sensor for use in motor vehicles |
| 01/07/1998 | EP0817394A2 Transmitter-receiver |
| 01/07/1998 | EP0817311A2 Feed assembly with a dielectric radiator for a parabolic reflector antenna |
| 01/07/1998 | EP0817307A2 Microwave antenna feed structure |
| 01/07/1998 | EP0815614A1 Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission |
| 01/07/1998 | CN1036962C Antenna system with helical feeders |
| 01/06/1998 | US5706017 Hybrid antenna including a dielectric lens and planar feed |
| 01/02/1998 | DE19725819A1 Glass window antenna device |
| 12/30/1997 | US5703600 Microstrip antenna with a parasitically coupled ground plane |
| 12/29/1997 | EP0814533A2 Directional antenna for radio telephone |
| 12/18/1997 | WO1997047988A1 Radar sensor for use in motor vehicles |
| 12/17/1997 | CN1168007A Microstrip antenna |
| 12/16/1997 | US5699072 Feed-horn with helical antenna element and converter including the same |
| 12/16/1997 | CA2105745C Identical surface shaped reflectors in semi-tandem arrangement |
| 12/11/1997 | WO1997047055A1 Antenna arrangement |
| 12/10/1997 | EP0812026A2 A communication system and methods utilizing a reactively controlled directive array |
| 12/10/1997 | EP0677212B1 Helical antenna system |
| 12/10/1997 | CN1167350A Lens antenna of reducing inner reflection wave interference for improved dielectric material |
| 12/09/1997 | US5696519 Polarization angle adjustment apparatus for transmitter and receiver equipment |
| 12/03/1997 | EP0810686A2 Lens antenna having an improved dielectric lens for reducing disturbances caused by internally reflected waves |
| 11/26/1997 | EP0809123A2 Millimeter wave imaging system |
| 11/20/1997 | WO1997043662A1 Event detection device with reduced blind zone |
| 11/13/1997 | WO1997042681A1 Antenna device |
| 11/12/1997 | EP0806606A1 Reflector |
| 11/11/1997 | US5686928 Phased array antenna for radio frequency identification |
| 11/11/1997 | US5686923 Multi-beam antenna for receiving microwaves emanating from several satellites |
| 11/06/1997 | WO1997041622A1 Antenna system |
| 11/06/1997 | DE19616252A1 Inductive magnetic wideband aerial device |
| 11/04/1997 | US5684495 Microwave transition using dielectric waveguides |
| 10/29/1997 | EP0803932A1 Multiple band folding antenna |
| 10/28/1997 | CA2101141C Equalized offset fed shaped reflector antenna system and technique for equalizing same |
| 10/23/1997 | WO1997039494A1 Antenna having improved front-to-back ratio |
| 10/22/1997 | EP0801820A1 An antenna for a portable radio communication device |
| 10/21/1997 | US5680139 Compact microwave and millimeter wave radar |
| 10/16/1997 | WO1997038464A1 Apparatus and method to measure co-polarization and cross-polarization properties of an antenna |
| 10/14/1997 | US5677697 Millimeter wave arrays using Rotman lens and optical heterodyne |
| 10/08/1997 | EP0799428A1 An impulse radar with swept range gate |
| 10/07/1997 | US5675349 Durable, lightweight, radar lens antenna |
| 10/07/1997 | US5675348 Feedome, primary radiator, and antenna for microwave |
| 09/30/1997 | US5673057 Three axis beam waveguide antenna |
| 09/30/1997 | US5673056 Identical surface shaped reflectors in semi-tandem arrangement |
| 09/30/1997 | CA2080934C Antenna for a radio base station |
| 09/25/1997 | WO1997035359A1 Array feed for axially symmetric and offset reflectors |
| 09/25/1997 | WO1997035358A1 Low cost compact electronically scanned millimeter wave lens and method |
| 09/17/1997 | EP0795928A2 Antenna with single or double reflector, with shaped beams and linear polarisation |
| 09/11/1997 | DE19608622A1 Aerial system with two aerials |
| 09/10/1997 | EP0793863A1 Antenna/downconverter having low cross polarization and broad bandwidth |
| 09/09/1997 | US5666126 Multi-staged antenna optimized for reception within multiple frequency bands |
| 09/09/1997 | US5666124 High gain array antenna system |
| 09/04/1997 | WO1997032360A1 Combination satellite and vhf/uhf receiving antenna |
| 09/04/1997 | WO1997032359A1 Folded bow-tie antenna |
| 09/04/1997 | WO1997032353A1 Orthogonal switched antenna system |
| 09/04/1997 | CA2198969A1 Broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control |
| 09/03/1997 | EP0793291A2 Millimeter wave arrays using Rotman lens and optical heterodyne system |
| 08/20/1997 | EP0790663A1 Surface mounting antenna and communication apparatus using the same antenna |
| 08/20/1997 | EP0790662A1 Surface-mount-type antenna and communication equipment using same |
| 08/14/1997 | WO1997029525A1 Omnidirectional antenna |
| 08/13/1997 | EP0789421A2 Durable, lightweight, radar lens antenna |
| 08/06/1997 | EP0634058B1 Directional antenna, in particular a dipole antenna |
| 08/05/1997 | US5654723 Contrawound antenna |
| 08/05/1997 | US5654722 Device at antenna systems for generating radio waves |
| 07/30/1997 | EP0786825A1 Dielectric lens apparatus |
| 07/29/1997 | US5652597 Electronically-scanned two-beam antenna |
| 06/24/1997 | US5642121 High-gain, waveguide-fed antenna having controllable higher order mode phasing |
| 06/19/1997 | WO1997022158A1 Voltage controlled ferroelectric lens phased array |
| 06/18/1997 | EP0778953A1 Monostatic fmcw radar sensor |
| 06/12/1997 | DE19649215A1 Antenne Antenna |
| 06/11/1997 | EP0700585A4 Antennas for use in portable communications devices |
| 06/04/1997 | EP0649572B1 Phase correcting zone plate |
| 05/20/1997 | US5631659 Microstrip patch antennas with radiation control |
| 05/14/1997 | EP0773598A2 Aperture antenna |
| 05/13/1997 | US5629713 Horizontally polarized antenna array having extended E-plane beam width and method for accomplishing beam width extension |
| 05/06/1997 | US5627550 Wideband double C-patch antenna including gap-coupled parasitic elements |
| 04/29/1997 | US5625368 Radiowave antenna system |
| 04/29/1997 | US5625367 Variable capacitance antenna for multiband reception and transmission |
| 04/23/1997 | EP0769824A1 Electromagnetic lens of the type of a circuit printed on a suspended substrate |
| 04/23/1997 | CN2253055Y Crocodile outdoor whole frequency channel super long-range telescopic antenna |
| 04/17/1997 | WO1997014192A1 Very small aperture terminal and antenna for use therein |
| 04/16/1997 | CN2252415Y 卫星接收天线 Satellite receiving antenna |
| 04/16/1997 | CN1147704A Non-aqueous electrolyte secondary battery |
| 04/03/1997 | WO1997012211A1 Microwave waveguide for tank level sensors |
| 04/02/1997 | EP0765176A1 Device for controlling oscillating electromagnetic fields, in particular radio waves |
| 03/25/1997 | US5614916 Elliptic beam horn antenna |
| 03/25/1997 | US5614915 Layered antenna |
| 03/18/1997 | US5612706 Dual-array yagi antenna |
| 03/12/1997 | EP0762660A2 Apparatus and method for electronic polarization correction |
| 03/05/1997 | EP0760170A1 Ultrawideband antenna |
| 03/05/1997 | CN1144407A Circularly polarized backfire antenna |