| 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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| 10/03/1978 | CA1039842A1 Compact frequency reuse antenna |
| 09/26/1978 | US4117488 Multipurpose, multifunction antenna |
| 09/19/1978 | US4115782 Microwave antenna system |
| 09/12/1978 | US4114163 L-band radar antenna array |
| 08/22/1978 | US4109254 Dipole radiators for feeding a parabolic reflector |
| 08/22/1978 | US4109253 Method and apparatus for substantially reducing cross polarized radiation in offset reflector antennas |
| 08/22/1978 | CA1037155A1 Reflector antenna |
| 07/25/1978 | US4103303 Frequency scanned corner reflector antenna |
| 07/11/1978 | US4100548 Bifocal pillbox antenna system |
| 06/27/1978 | US4097868 Antenna for combined surveillance and foliage penetration radar |
| 06/20/1978 | US4096483 Reflector with frequency selective ring of absorptive material for aperture control |
| 05/23/1978 | US4091388 Boresight error compensation in boresighting antenna-radome system |
| 05/23/1978 | US4091387 Beam forming network |
| 05/23/1978 | US4090834 Removable mold for forming high frequency antennas |
| 05/16/1978 | US4090203 Low sidelobe antenna system employing plural spaced feeds with amplitude control |
| 05/02/1978 | US4087824 Asymmetrically fed antenna arrays |
| 04/25/1978 | US4086591 Small aperture antenna |
| 04/11/1978 | US4084162 Folded back doublet microstrip antenna |
| 01/24/1978 | US4070678 Wide angle scanning antenna assembly |
| 12/13/1977 | US4063249 Small broadband antenna having polarization sensitive reflector system |
| 12/06/1977 | US4062018 Scanning antenna with moveable beam waveguide feed and defocusing adjustment |
| 11/15/1977 | US4058812 Dish antenna with impedance matched splash plate feed |
| 10/18/1977 | US4054886 Receiving antenna having mirror symmetry and defined polarizations ion |
| 10/18/1977 | US4054877 Circularly polarized dipole type omnidirectional transmitting antenna |
| 09/27/1977 | US4051476 Parabolic horn antenna with microstrip feed |
| 09/13/1977 | US4047287 Method for forming a high frequency antenna |
| 09/06/1977 | US4047180 Broadband corrugated horn antenna with radome |
| 08/23/1977 | US4044361 Satellite tracking cassegrainian antenna |
| 08/23/1977 | US4044360 Two-mode RF phase shifter particularly for phase scanner array |
| 08/16/1977 | US4042935 Wideband multiplexing antenna feed employing cavity backed wing dipoles |
| 08/16/1977 | US4042933 Antenna line scan system for helicopter wire detection |
| 08/09/1977 | US4041500 Line scan radar antenna using a single motor |
| 07/05/1977 | US4034378 Antenna with echo cancelling elements |
| 06/21/1977 | US4031538 Antenna with echo cancelling elements |
| 06/07/1977 | US4028709 Adjustable yagi antenna |
| 05/17/1977 | US4024543 Parabolic antenna |
| 05/03/1977 | US4021815 Circularly polarized transmitting antenna employing end-fire elements |
| 04/05/1977 | US4016570 Constant beam width antenna reflector |
| 03/22/1977 | US4014027 Omnidirectional antenna for around a mast |
| 03/15/1977 | US4012743 Antenna system including a paraboloidal reflector and an exciter |
| 03/01/1977 | US4010475 Antenna array encased in dielectric to reduce size |
| 02/15/1977 | US4008477 Antenna with inherent filtering action |
| 01/25/1977 | US4005433 Small wavelength high efficiency antenna |
| 01/04/1977 | US4001837 Dual scan corner reflector antenna |
| 01/04/1977 | US4001835 Scanning antenna with extended off broadside scanning capability |
| 12/21/1976 | US3998173 Stitched wire electrical structure and method of making same |
| 11/30/1976 | US3995275 Reflector antenna having main and subreflector of diverse curvature |
| 11/23/1976 | US3993999 Amplitude modulation scanning antenna system |
| 11/02/1976 | US3990080 Antenna with echo cancelling elements |
| 11/02/1976 | US3990078 Image element antenna array for a monopulse tracking system for a missile |
| 10/05/1976 | US3984840 Bootlace lens having two plane surfaces |
| 09/28/1976 | US3983562 Mono-lobed scanner |
| 09/28/1976 | US3983560 Cassegrain antenna with improved subreflector for terrestrial communication systems |
| 09/21/1976 | US3982249 Microwave radiation method and apparatus with a combined diffraction edge and radiation screen |
| 08/31/1976 | US3978486 Antenna reflector support |
| 08/17/1976 | US3975733 Transmitting antenna employing radial fins |
| 07/20/1976 | US3971031 Loaded quad antenna |
| 07/06/1976 | US3968497 Antenna with a periscope arrangement |
| 06/15/1976 | US3964069 Constant beamwidth antenna |
| 05/18/1976 | US3958248 Tunable dipole antenna for television receivers |
| 05/18/1976 | US3958246 Circular retrodirective array |
| 05/11/1976 | US3956752 Polarization insensitive lens formed of spiral radiators |
| 04/27/1976 | US3953858 Multiple beam microwave apparatus |
| 04/06/1976 | US3949404 Highly efficient antenna system using a corrugated horn and scanning hyperbolic reflector |
| 03/23/1976 | US3946396 Antenna for providing a dielectrically induced, directionally dependent radiation pattern phase shift |
| 03/16/1976 | US3945016 Wide-band spiral antenna |
| 03/16/1976 | US3945009 Antennae with linear aperture |
| 03/02/1976 | US3942180 Wide-band omnidirectional antenna |
| 02/17/1976 | US3939479 Wavefront flattener |
| 02/10/1976 | US3938162 Variable beamwidth antenna |
| 02/10/1976 | US3938159 Dual frequency feed horn using notched fins for phase and amplitude control |
| 02/03/1976 | US3936837 Corrugated horn fed offset paraboloidal reflector |
| 02/03/1976 | US3936835 Directive disk feed system |
| 01/27/1976 | US3935577 Flared microwave horn with dielectric lens |
| 01/13/1976 | US3932876 Short end-fire circularly polarized antenna |
| 01/06/1976 | US3931624 Antenna array for aircraft guidance system |