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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12/18/1984 | CA1179753A1 Microwave receiver for circularly polarized signals |
12/11/1984 | US4488157 Slot array antenna assembly |
12/11/1984 | US4488156 Geodesic dome-lens antenna |
12/05/1984 | EP0126993A2 Waveguide structure for end-fire arrays |
11/27/1984 | US4485385 Broadband diamond-shaped antenna |
11/20/1984 | US4484197 Multibeam antenna arrangement with minimal astignatism and coma |
11/20/1984 | US4484196 Antenna drive arrangement for very high frequency omidirectional range navigation system |
11/13/1984 | US4482899 Wide bandwidth hybrid mode feeds |
11/13/1984 | US4482898 Antenna feed arrangement for correcting for astigmatism |
11/13/1984 | US4482897 Multibeam segmented reflector antennas |
11/08/1984 | WO1984004427A1 Two element low profile antenna |
11/07/1984 | EP0123870A1 Doppler radar velocity measurement apparatus |
10/25/1984 | WO1984004209A1 Antenna structure |
10/23/1984 | US4479130 Broadband antennae employing coaxial transmission line sections |
10/23/1984 | US4479129 Directive antenna system employing a paraboloidal main dish and ellipsoidal subdish |
10/16/1984 | US4477816 Corrugated antenna feed horn with means for radiation pattern control |
10/16/1984 | CA1176368A1 Two-band microwave source and an antenna equipped with said source |
09/28/1984 | EP0104173A4 An electronically scanned antenna system having a linear array of yagi antennas. |
09/18/1984 | CA1174760A1 Multimode ultrahigh-frequency source comprising a profiled obstacle |
09/11/1984 | US4471359 Dual band, low sidelobe, high efficiency mirror antenna |
08/28/1984 | US4468674 Assymetrical folded half-dipole and linear extension antenna array |
08/28/1984 | US4468672 Wide bandwidth hybrid mode feeds |
08/28/1984 | US4468670 Antenna device for air traffic radar |
08/21/1984 | CA1173156A1 Bidirectionally focusing antenna |
08/15/1984 | EP0115983A2 Spatial filter for circularly polarized microwaves and Cassegrain antenna using such a filter |
08/07/1984 | US4464666 Multiple reflector antenna |
08/07/1984 | CA1172354A1 Microwave antenna having improved wide angle radiation characteristics |
08/07/1984 | CA1172353A1 Polarization rotatable antenna feed |
07/24/1984 | US4462034 Antenna system with plural horn feeds |
07/17/1984 | US4460899 Shield for improving the decoupling of antennas |
06/19/1984 | CA1169547A1 Orientable beam antenna for telecommunications satellite |
05/23/1984 | EP0109322A1 Double reflector antenna for a tracking radar improving the target acquisition capability |
05/23/1984 | EP0109186A1 Antenna |
05/22/1984 | US4450451 Gimbal assembly for monopulse radar antenna |
05/16/1984 | EP0108515A1 Dish aerial |
05/08/1984 | US4447811 Dielectric loaded horn antennas having improved radiation characteristics |
04/17/1984 | CA1165865A1 Multifrequency reflector antenna |
04/10/1984 | CA1165401A1 Receive only earth satellite ground station |
04/06/1984 | EP0092571A4 Wide bandwidth hybrid mode feeds. |
04/04/1984 | EP0104173A1 An electronically scanned antenna system having a linear array of yagi antennas. |
03/14/1984 | EP0102846A1 Dual reflector microwave antenna |
03/06/1984 | US4435714 For radiating energy |
02/28/1984 | US4434425 Multiple ring dipole array |
02/15/1984 | EP0100466A1 Dual-band antenna system of a beam waveguide type |
02/14/1984 | US4431997 Compound element for image element antennas |
02/08/1984 | EP0100123A2 A directive antenna element |
02/07/1984 | CA1161945A1 Antennas made of carbon fibre reinforced plastic material |
01/31/1984 | US4429314 Antennas, audio devices |
01/25/1984 | EP0099318A1 Reflecting plate antenna including a polarizer reflector |
01/11/1984 | EP0097932A1 Directional radio microwave antenna |
01/10/1984 | US4425566 Antenna arrangement for providing a frequency independent field distribution with a small feedhorn |
12/28/1983 | EP0096959A1 Microwave antenna assemblies |
12/27/1983 | US4423422 Diagonal-conical horn-reflector antenna |
11/15/1983 | US4415900 Cavity/microstrip multi-mode antenna |
11/08/1983 | CA1156754A1 Correction method for transverse defocussing of paraboloid and corresponding correcting system for parabolic antenna |
11/02/1983 | EP0092571A1 Wide bandwidth hybrid mode feeds. |
10/18/1983 | US4410892 Reflector-type microwave antennas with absorber lined conical feed |
10/18/1983 | US4410866 Antenna transducer for a transmission-reception antenna |
10/05/1983 | EP0090400A1 Surveillance radar aerial suited to elevation measurement |
10/04/1983 | US4408209 Orientable beam antenna for telecommunications satellite |
09/27/1983 | US4407001 Focal axis resolver for offset reflector antennas |
09/21/1983 | EP0088948A1 Antenna comprising at least one dipole |
09/21/1983 | EP0088901A1 Offset-fed parabolic reflector antenna with low cross-polarisation |
09/14/1983 | EP0088681A1 Dual-reflector antenna with incorporated polarizer |
09/07/1983 | EP0087683A1 Radiant-slot television aerial, especially for indoor use |
09/06/1983 | US4403222 Passive RF path diverter |
08/30/1983 | US4401988 Coupled multilayer microstrip antenna |
08/24/1983 | EP0086399A1 Aerial with several reflectors |
08/24/1983 | EP0086351A1 Geodesic dome/lens antenna |
08/09/1983 | US4398201 Antenna director and method therefor |
08/09/1983 | US4398200 Feed apertures with crosspolarization compensation for linear polarization |
08/09/1983 | US4397558 System for reducing the effects of background radiation |
07/27/1983 | EP0084420A2 An antenna, particularly for the reception of satellite communications |
07/27/1983 | EP0084112A1 Antenna for satellite reception |
07/26/1983 | US4395095 Optical system for infrared tracking |
06/14/1983 | US4388623 Antennas |
06/08/1983 | EP0080507A1 Broadband antennae |
06/01/1983 | EP0080319A1 Antenna assemblies |
05/31/1983 | CA1147455A1 Directional antenna for microwave transmissions |
05/17/1983 | US4384290 Airborne interrogation system |
05/11/1983 | WO1983001711A1 Wide bandwidth hybrid mode feeds |
03/29/1983 | US4378558 Endfire antenna arrays excited by proximity coupling to single wire transmission line |
03/17/1983 | WO1983000952A1 An electronically scanned antenna system having a linear array of endfire elements |
03/15/1983 | US4376940 Antenna arrangements for suppressing selected sidelobes |
02/22/1983 | US4375052 Polarization rotatable antenna feed |
02/16/1983 | EP0072191A2 Diagonal-conical horn-reflector antenna |
01/25/1983 | US4370657 Electrically end coupled parasitic microstrip antennas |
01/25/1983 | CA1140255A1 Adjustable top loaded antenna |
01/18/1983 | US4369448 Microwave antenna with radiation scattering support member elements |
01/11/1983 | US4368473 Microwave lens ripple filter |
12/21/1982 | US4365252 Correction method for transverse defocussing of parabolic antenna |
12/14/1982 | US4364052 Antenna arrangements for suppressing selected sidelobes |
12/14/1982 | CA1137624A1 Antenna with sum and error patterns |
12/09/1982 | WO1982004358A1 Broadband antennae |
12/09/1982 | WO1982004357A1 Reflector-type microwave antennas with absorber lined conical feed |
12/08/1982 | EP0066455A1 Reflector-type microwave antennas with absorber lined conical feed |
11/30/1982 | US4361841 Lens antenna |
11/23/1982 | US4360815 Bifocal reflector antenna and its configuration process |
11/16/1982 | US4359741 Lens antenna arrangement |
11/16/1982 | US4359738 Clutter and multipath suppressing sidelobe canceller antenna system |