Patents for H01Q 5 - Arrangements for simultaneous operation of aerials on two or more different wavebands (11,466) |
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03/16/1988 | CN87105573A Antenna system for hybrid-type communication satallite |
03/10/1988 | DE3629315A1 Reflector arrangement for a geostationary satellite |
03/09/1988 | EP0258277A1 Dual band antenna permitting connectorless antenna coupler |
02/25/1988 | WO1988001445A1 Antenna system for hybrid communications satellite |
02/25/1988 | WO1988001442A1 Frequency selective screen having sharp transition |
02/16/1988 | US4725846 Disguise antenna operating in the cellular band |
02/10/1988 | CN86210836U Universal television receiving antenna with multi-frequency band |
02/03/1988 | EP0255095A2 Transponder antenna |
02/02/1988 | US4723305 Dual band notch antenna for portable radiotelephones |
01/28/1988 | DE3624176A1 Transmitting device for at least two radio-frequency transmitters radiating at different transmitter frequencies and with different radiation patterns |
01/27/1988 | EP0254373A1 Antenna for high frequencies |
01/26/1988 | US4721965 AM-FM-cellular telephone multiband antenna for motor vehicle |
01/26/1988 | US4721962 Antenna for a transceiver, particularly portable telephone |
01/20/1988 | CN87103632A Combined up and down feed network for a communication satellite antenna |
12/03/1987 | WO1987007439A1 Combined uplink and downlink satellite antenna feed network |
10/20/1987 | US4701765 Structure for a dichroic antenna |
10/06/1987 | US4698638 Dual mode target seeking system |
09/30/1987 | EP0238662A1 Optical device |
09/16/1987 | EP0237110A1 Direction-finding antenna system |
09/08/1987 | US4692769 Dual band slotted microstrip antenna |
09/01/1987 | US4691206 Microstrip and cavity-backed aperture antenna |
08/25/1987 | US4689627 Dual band phased antenna array using wideband element with diplexer |
07/23/1987 | DE3601553A1 Arrangement for the distribution of extremely high frequency energy |
07/16/1987 | WO1987004307A1 Dual band antenna permitting connectorless antenna coupler |
07/08/1987 | EP0227804A1 Axial multipole mobile antenna |
07/01/1987 | EP0227005A2 Transmitting device comprising two microwave transmitters radiating different frequencies with different radiation patterns |
06/23/1987 | US4675687 AM-FM cellular telephone multiband antenna for motor vehicle |
06/23/1987 | CA1223344A1 Monopulse feeder for transmitting and receiving radar signals within two mutually separated frequency bands |
06/19/1987 | DE3545639C1 Transmitter operating at at least two frequencies - uses single VHF antenna array with different polar diagrams |
06/19/1987 | DE3544092A1 Multi-band antenna for the GHz band |
06/16/1987 | EP0225460A2 Transmit-receive antenna, especially for short and medium waves |
06/09/1987 | US4672685 Dual band antenna having separate matched inputs for each band |
05/19/1987 | US4667204 Combination dual rhombic and V-type antenna for VHF-UHF television receivers |
04/14/1987 | US4658260 Telescoping multiband antenna |
04/09/1987 | WO1987002193A1 Optical device |
04/08/1987 | EP0216907A1 Multiband antenna. |
04/07/1987 | US4656483 Switchable antenna for the VHF and UHF frequency bands |
03/31/1987 | US4654622 Monolithic integrated dual mode IR/mm-wave focal plane sensor |
03/25/1987 | EP0215535A1 Dual frequency feed |
03/24/1987 | US4652885 Dual mode antenna for millimeter wave and infrared radiation |
03/03/1987 | US4647941 Telescopic antenna extended by coaxial cable feed |
01/27/1987 | US4639731 Monopulse feeder for transmitting and receiving radar signals within two mutually separated frequency bands |
01/22/1987 | DE3526058A1 Room-antenna housing |
01/20/1987 | US4638322 Multiple feed antenna |
01/15/1987 | WO1987000351A1 Axial multipole mobile antenna |
01/13/1987 | US4636797 Dual mode dichroic antenna/aperture |
01/06/1987 | US4635066 Multiband multimode aircraft antenna |
12/30/1986 | US4633265 Low frequency/high frequency omnidirectional antenna formed of plural dipoles extending from a common center |
12/17/1986 | EP0204886A2 Antenna for a radio transmitting and receiving apparatus |
12/16/1986 | US4630060 Vertical antenna with decoupling sections for multiband operation |
11/18/1986 | US4623894 Interleaved waveguide and dipole dual band array antenna |
10/28/1986 | US4620194 Tunable antenna with variable series L-C network |
10/23/1986 | WO1986006216A1 Multiband antenna |
10/14/1986 | US4617573 Method for obtaining a linear cellular array employing cosine-squared antenna patterns |
09/02/1986 | US4609866 Electrical systems interference locator |
08/26/1986 | US4608572 Broad-band antenna structure having frequency-independent, low-loss ground plane |
08/12/1986 | US4605932 Nested microstrip arrays |
08/06/1986 | EP0189630A1 Low Frequency/high frequency omnidirectional antenna. |
08/05/1986 | US4604628 Parasitic array with driven sleeve element |
07/23/1986 | EP0188345A2 Dual frequency band antenna system |
07/09/1986 | EP0186693A1 Telescopic antenna. |
06/17/1986 | CA1206256A1 Compact, adjustable antenna |
06/10/1986 | CA1205903A1 Emitting-receiving antennas |
06/03/1986 | US4593289 Multi-band dipole antenna with matching stubs |
05/27/1986 | CA1205184A1 Dual-band antenna system of a beam waveguide type |
05/21/1986 | EP0181617A2 Reflector for use in an antenna |
05/16/1986 | EP0165264A4 Dual band transceiver antenna. |
04/16/1986 | EP0177630A1 Combination of antennas |
03/11/1986 | US4575725 Double tuned, coupled microstrip antenna |
02/18/1986 | US4571595 Dual band transceiver antenna |
02/18/1986 | US4571592 Skin effect antennas |
02/11/1986 | US4570165 Adjustable loop and dipole antenna |
02/05/1986 | EP0170154A1 Cross-polarized dual-frequency antenna with the same area coverage for telecommunication satellites |
01/16/1986 | WO1986000471A1 Telescopic antenna |
12/31/1985 | US4562441 Orbital spacecraft having common main reflector and plural frequency selective subreflectors |
12/31/1985 | CA1198811A1 Antenna apparatus including frequency separator having wide band transmission or reflection characteristics |
12/27/1985 | EP0165264A1 Dual band transceiver antenna |
12/17/1985 | US4559540 Antenna system with plural horn feeds |
12/17/1985 | US4559539 Spiral antenna deformed to receive another antenna |
11/19/1985 | US4554554 Quadrifilar helix antenna tuning using pin diodes |
11/13/1985 | EP0161044A1 Dual-frequency microwave antenna |
10/22/1985 | US4549185 Combining antenna beams from different frequency bands |
10/22/1985 | CA1195771A1 Tuned small loop antenna with wide frequency range capabilities and method for designing thereof |
10/01/1985 | US4544928 Multifrequency reflector antenna |
07/16/1985 | US4529989 Microwave radiation source comprising open cavities energized by two dipoles |
07/10/1985 | EP0148136A1 Monopulse feeder for two separated frequency bands |
07/02/1985 | US4527164 Multiband aerial, especially suitable for a motor vehicle window |
06/25/1985 | US4525719 Dual-band antenna system of a beam waveguide type |
06/20/1985 | WO1985002719A1 Dual band transceiver antenna |
06/04/1985 | CA1188410A1 Multiband aerial, especially suitable for a motor vehicle window |
05/29/1985 | EP0142555A1 Dual band phased array using wideband elements with diplexer. |
05/21/1985 | US4518968 Dipole and ground plane antennas with improved terminations for coaxial feeders |
05/21/1985 | US4518965 Tuned small loop antenna and method for designing thereof |
04/02/1985 | US4509056 Multi-frequency antenna employing tuned sleeve chokes |
03/26/1985 | CA1184651A1 Antenna system for different frequency bands |
01/29/1985 | US4496952 Trap vertical antenna with parallel L-C circuits for broadbanding |
01/15/1985 | US4494122 Antenna apparatus capable of resonating at two different frequencies |
01/02/1985 | EP0130111A1 Dual frequency radar radiator and antenna using such a radiator |
12/18/1984 | US4489331 Two-band microwave antenna with nested horns for feeding a sub and main reflector |
12/06/1984 | WO1984004855A1 Dual band phased array using wideband elements with diplexer |