Patents for H01Q 5 - Arrangements for simultaneous operation of aerials on two or more different wavebands (11,466) |
---|
04/08/1980 | CA1075357A1 Triband vehicle antenna |
01/29/1980 | CA1070823A1 Interleaved antenna array for use in a multiple input antenna system |
01/22/1980 | US4185289 Spherical antennas having isotropic radiation patterns |
01/15/1980 | US4184165 Tuning system for tower antennas |
01/09/1980 | EP0006391A1 Periscopic feed system for two-band antenna |
01/08/1980 | US4183027 Dual frequency band directional antenna system |
12/11/1979 | CA1067996A1 Multiple resonance radio frequency antenna structure |
11/27/1979 | US4176358 Reflector antenna with matched feed system |
10/23/1979 | CA1065051A1 Multiband antenna for window panes |
09/18/1979 | US4168504 Multimode dual frequency antenna feed horn |
09/04/1979 | US4167010 Terminated microstrip antenna |
08/28/1979 | CA1061452A1 Frequency selective reflector system |
07/24/1979 | US4162499 Flush-mounted piggyback microstrip antenna |
07/24/1979 | CA1059235A1 Broadband antenna system with the feed line conductors spaced on one side of a support boom |
07/24/1979 | CA1059234A1 Multiband antenna for window panes |
06/26/1979 | CA1057392A1 Dual-frequency circularly polarized antenna for satellite navigation and related problems |
04/10/1979 | US4149169 Configuration of two antennae with signal isolation |
04/03/1979 | US4148030 Helical antennas |
03/20/1979 | US4145694 Compact, directive, broadband antenna system having end loaded dipoles |
03/20/1979 | US4145693 Three band monopole antenna |
02/20/1979 | US4141014 Multiband high frequency communication antenna with adjustable slot aperture |
02/20/1979 | US4141012 Dual band waveguide radiator |
02/06/1979 | US4138684 Loaded microstrip antenna with integral transformer |
12/26/1978 | US4131897 TV Antenna |
12/19/1978 | US4130823 Miniature, flush mounted, microwave dual band cavity backed slot antenna |
11/14/1978 | US4125840 Broad band dipole antenna |
10/31/1978 | US4123758 Disc antenna |
07/18/1978 | US4101901 Interleaved antenna array for use in a multiple input antenna system |
07/18/1978 | US4101895 Multifrequency antenna system integrated into a radome |
06/27/1978 | US4097868 Antenna for combined surveillance and foliage penetration radar |
06/20/1978 | US4096482 Wide band monopulse antennas with control circuitry |
06/13/1978 | US4095230 High accuracy broadband antenna system |
06/13/1978 | US4095229 Triband vehicle antenna |
05/30/1978 | US4092648 Reflex feed system for dual frequency antenna with frequency cutoff means |
05/16/1978 | US4090202 Multiband antenna for automobile windshield |
05/09/1978 | US4089005 Dual frequency antenna |
05/09/1978 | US4089003 Multifrequency microstrip antenna |
04/04/1978 | US4083050 Dual band monopole omni antenna |
03/28/1978 | US4081803 Multioctave turnstile antenna for direction finding and polarization determination |
02/28/1978 | US4077039 Launching and/or receiving network for an antenna feedhorn |
02/21/1978 | US4075634 Portable antenna assembly for television receiver |
02/14/1978 | US4074270 Multiple frequency microstrip antenna assembly |
02/07/1978 | US4072954 Multiband antenna for window panes |
02/07/1978 | US4072953 Multiband antenna for window panes |
02/07/1978 | US4072952 Microwave landing system antenna |
01/24/1978 | US4070676 Multiple resonance radio frequency microstrip antenna structure |
12/13/1977 | US4063249 Small broadband antenna having polarization sensitive reflector system |
12/06/1977 | US4062017 Multiple frequency band antenna |
11/29/1977 | US4060810 Loaded microstrip antenna |
10/18/1977 | US4054886 Receiving antenna having mirror symmetry and defined polarizations ion |
10/04/1977 | US4052724 Branching filter |
09/06/1977 | US4047179 IFF antenna arrangement |
08/16/1977 | US4042935 Wideband multiplexing antenna feed employing cavity backed wing dipoles |
08/09/1977 | US4041499 Coaxial waveguide antenna |
07/26/1977 | US4038662 Dielectric sheet mounted dipole antenna with reactive loading |
06/14/1977 | US4030100 Multipurpose submarine antenna |
04/12/1977 | US4017865 Frequency selective reflector system |
02/15/1977 | US4008479 Dual-frequency circularly polarized spiral antenna for satellite navigation |
10/05/1976 | US3984841 Broadband antenna system with the feed line conductors spaced on one side of a support boom |
07/27/1976 | US3972048 FM-AM windshield antenna |
07/20/1976 | US3971032 Dual frequency microstrip antenna structure |
03/16/1976 | US3945013 Double omni-directional antenna |
03/09/1976 | US3943519 Multiplexer-demultiplexer for a microwave antenna |
02/10/1976 | US3938159 Dual frequency feed horn using notched fins for phase and amplitude control |
01/06/1976 | US3931626 Staggered tuned TV receiving antenna with integrated UHF-VHF sections |
01/06/1976 | US3931625 Shortened multi-rod broadband antenna |