Patents
Sitemap › H01 - Basic electric elements › H01Q - Aerials › H01Q 1 - Details of, or arrangements associated with, aerials
Patents for H01Q 1 - Details of, or arrangements associated with, aerials (75,694)
01/1982
01/05/1982US4309707 Radio antennae structures employing helical conductors
01/05/1982US4309706 Wideband direction-finding system
12/1981
12/30/1981EP0042612A1 Arrangement for transforming the polarization of electromagnetic waves
12/30/1981EP0042611A1 Conductive screen for circularly polarising electromagnetic waves
12/30/1981EP0042571A1 Process for conducting and/or converting energy in gaseous, liquid or solid mediums
12/29/1981US4308540 Compact television antenna system
12/29/1981US4308539 Compensated phased array antenna
12/24/1981WO1981003732A1 Method for conducting and/or transforming energy within gas,liquid or solid media
12/15/1981US4306241 Antenna mounting structure for automotive windshields
12/15/1981US4306235 Multiple frequency microwave antenna
12/08/1981US4305078 Multifrequency series-fed edge slot antenna
12/08/1981US4304603 Cordierite, cristobalite, magnesium aluminum titanate, rutile
12/08/1981US4304381 Aimable mounting apparatus
12/02/1981EP0040818A1 Doppler radar apparatus having two cavity resonators
12/01/1981US4303872 Telescoping antenna movable by means of a d.c. motor
12/01/1981US4303211 Radio systems and apparatus
12/01/1981CA1113601A1 High efficiency microstrip antenna structure
11/1981
11/26/1981WO1981003398A1 Circularly polarized hemispheric coverage flush antenna
11/17/1981US4301456 Electromagnetic wave attenuating surface
11/17/1981US4300468 Position interlock system for submarine masts and closure
11/11/1981EP0039551A1 A stabilised antenna arrangement
11/10/1981US4300141 Rotary support structure for a power antenna cable storage drum
11/10/1981US4300140 Coil loaded antenna embedded in glass fibre
11/03/1981US4298878 Radiating source formed by a dipole excited by a waveguide and an electronically scanning antenna comprising such sources
11/03/1981US4298877 Offset-fed multi-beam tracking antenna system utilizing especially shaped reflector surfaces
10/1981
10/28/1981EP0038788A1 A mounting structure
10/27/1981US4297711 Omnidirectional receiving antenna
10/20/1981CA1111132A1 Radar antenna systems
10/20/1981CA1111012A1 Drive and storage drum for an antenna cable
10/13/1981US4295144 Feed system for a circularly polarized tetra-coil antenna
10/13/1981CA1110722A1 Feeder arrangement for an aerial for inter alia satellite signals
10/07/1981EP0036875A1 Composite leading edge for aircraft
10/06/1981US4293862 Canopy assembly for patched radar domes
10/06/1981US4293861 Compact television antenna system
10/06/1981US4293860 Antenna alarm assembly for vehicle
10/06/1981US4293859 Traffic radar unit
09/1981
09/30/1981EP0036476A1 Microwave transmitter-receiver, particularly for a Doppler radar system
09/30/1981EP0036442A1 Transceiver with antenna
09/29/1981CA1109913A1 Heating system for microwave antenna reflector
09/22/1981US4291312 Dual ground plane coplanar fed microstrip antennas
09/22/1981US4291311 Dual ground plane microstrip antennas
09/16/1981EP0035930A1 Mounting for an antenna for the reception of signals from a geostationary satellite, and antenna comprising such a mounting
09/15/1981US4290068 Microwave television system
09/08/1981US4288794 Shielded loop VOR/ILS antenna system
09/08/1981CA1108753A1 Apparatus and method for improving r.f. isolation between adjacent antennas
09/07/1981EP0031336A4 Antenna system.
09/02/1981EP0034810A1 Directional microwave antenna to realize a sector-shaped lobe
09/02/1981EP0034809A1 Directional microwave antenna having a sector-shaped lobe
09/01/1981US4287603 Radiated input mixer
09/01/1981US4287520 Slot chevron element for periodic antennas and radomes
08/1981
08/18/1981US4283989 Doppler-type projectile velocity measurement and communication apparatus, and method
08/18/1981CA1107393A1 Mobile antenna mounting assembly
08/18/1981CA1107392A1 Mobile antenna with adjustable radiating element
08/18/1981CA1107391A1 Mobile antenna including quick-release mounting
08/12/1981EP0033722A1 Mechanical system for the adjustment of the axial distance and for the axial alignment of a feed with respect to a parabolic antenna
08/04/1981US4282530 Cylindrical paraboloid weather cover for a horn reflector antenna with wave absorbing means
08/04/1981US4282526 Rod antenna support
08/04/1981US4282525 Microwave limb sounder
08/04/1981US4281427 Warning and signalling device, especially for maritime purposes
08/04/1981CA1106492A1 Microstrip radiator with folded resonant cavity
07/1981
07/28/1981CA1105744A1 High-g gimbal platform
07/22/1981EP0032340A1 Directable antenna mounting and utilization thereof
07/21/1981US4280225 Communication systems for transportation undertakings
07/21/1981CA1105614A1 Stacked antenna structure for radiation of orthogonally polarized signals
07/21/1981CA1105612A1 Portable mast, particularly for radio link systems
07/21/1981CA1105611A1 Yagi-type antennas and method
07/14/1981US4278980 Antenna input circuit for radio receiver
07/14/1981US4278955 Coupler for feeding extensible transmission line
07/08/1981EP0031336A1 Antenna system
07/07/1981US4277789 Microwave energy transmission system for around-the-mast applications
07/01/1981EP0031039A1 Tower shaped shielding for radio-engineering systems
06/1981
06/30/1981US4275859 Optical dome protection device
06/24/1981EP0030895A1 Method of correcting the cross-defocusing of a paraboloid and matching device for correcting a parabolic antenna
06/23/1981US4275400 Antenna coil and its support structure mounting
06/09/1981US4272768 Multi-purpose survival canteen
06/02/1981US4271534 Microwave receiver
06/02/1981US4271531 Frequency synthesizer
05/1981
05/26/1981US4270128 Radio antennae
05/26/1981US4269508 Device for adjusting the azimuthal and inclination directions of a wave reflector
05/20/1981EP0028877A1 Rotary support structure for a power antenna cable storage drum
05/05/1981US4266227 Mounting for mobile communications antenna
05/05/1981US4265690 Curing
05/05/1981CA1100626A1 High frequency aircraft antenna
04/1981
04/21/1981CA1099812A1 Helical antennas
04/16/1981WO1981000993A1 Composite leading edge for aircraft
04/14/1981US4262293 Deployable log periodic VEE antenna
04/07/1981US4260989 Antenna system for window glass of automobile
04/07/1981CA1099014A1 Microwave antenna
04/07/1981CA1099012A1 Electrical signal separating device
04/07/1981CA1098937A1 Electric switch and actuator for an antenna drive system
04/01/1981EP0026001A1 Antenna for direct reception from satellites
03/1981
03/31/1981US4259671 Antenna deicing apparatus
03/31/1981CA1098293A1 Bn bonded bn fiber article from boric oxide fiber
03/24/1981CA1098206A1 Configuration of two antennae with signal isolation
03/17/1981US4257048 Antenna system to reduce fading caused by multipath transmission
03/03/1981US4254423 Telescopic equipment carrier including antennas
03/03/1981US4254419 Mobile antenna raising and lowering device
02/1981
02/24/1981US4253190 Communications system using a mirror kept in outer space by electromagnetic radiation pressure
02/24/1981US4253099 Automobile antenna
02/17/1981US4251819 Variable support apparatus
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