Patents
Patents for H01Q 9 - Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (23,053)
10/1977
10/18/1977US4054874 Microstrip-dipole antenna elements and arrays thereof
10/11/1977US4053895 Electronically scanned microstrip antenna array
09/1977
09/27/1977US4051479 Elf vertical dipole antenna suspended from aircraft
09/27/1977US4051478 Notched/diagonally fed electric microstrip antenna
09/27/1977US4051477 Wide beam microstrip radiator
09/06/1977US4047178 Low loss top termination for short monopoles
08/1977
08/02/1977US4040060 Notch fed magnetic microstrip dipole antenna with shorting pins
07/1977
07/26/1977US4038662 Dielectric sheet mounted dipole antenna with reactive loading
07/05/1977USRE29296 Dual slot microstrip antenna device
06/1977
06/28/1977US4032921 Broad-band spiral-slot antenna
06/21/1977US4031536 Stacked arrays for broadcasting elliptically polarized waves
06/14/1977US4030101 Regular eight face polyhedral antenna element
06/07/1977US4028704 Broadband ferrite transformer-fed whip antenna
03/1977
03/29/1977US4015265 Folded doublet antenna
03/29/1977US4015264 Dual mode broadband antenna
03/15/1977US4012744 Helix-loaded spiral antenna
03/15/1977US4012741 Microstrip antenna structure
02/1977
02/15/1977US4008477 Antenna with inherent filtering action
01/1977
01/25/1977US4005430 Thick folded dipole which is tuneable within a frequency band of two octaves
01/04/1977US4001833 Whole wave vertical antenna
01/04/1977US4001832 Vertical antenna having an off-center supply
12/1976
12/14/1976US3997900 Four beam printed antenna for Doopler application
11/1976
11/23/1976US3993998 Directional loop antenna with plural dielectric coverings
10/1976
10/26/1976US3988737 Pivoted rod television receiving antenna for indoor use
10/19/1976US3987456 Wide relative frequency band and reduced size-to-wavelength ratio antenna
10/19/1976US3987451 Beam type planar array antenna system
10/19/1976US3987450 Open rectangular antenna conductively supported on mast
10/05/1976US3984839 Low height VLF antenna system
10/05/1976US3984838 Electrically small, double loop low backlobe antenna
10/05/1976US3984834 Diagonally fed electric microstrip dipole antenna
09/1976
09/28/1976US3983483 Communications device arranged to be worn in intimate contact with the body of a user
09/14/1976US3980952 Dipole antenna system having conductive containers as radiators and a tubular matching coil
08/1976
08/31/1976US3978488 Offset fed electric microstrip dipole antenna
08/31/1976US3978487 Coupled fed electric microstrip dipole antenna
08/24/1976US3977004 Aircraft VLF/LF/MF window antenna receiving system
07/1976
07/27/1976US3972050 End fed electric microstrip quadrupole antenna
07/27/1976US3972049 Asymmetrically fed electric microstrip dipole antenna
07/27/1976US3971125 Method of making an antenna array using printed circuit techniques
07/20/1976US3971032 Dual frequency microstrip antenna structure
07/13/1976US3969732 Spiral antenna circuit
06/1976
06/29/1976US3967276 Antenna structures having reactance at free end
05/1976
05/18/1976US3958248 Tunable dipole antenna for television receivers
05/11/1976US3956752 Polarization insensitive lens formed of spiral radiators
04/1976
04/13/1976US3950757 Broadband whip antennas
04/06/1976US3949407 Direct fed spiral antenna
03/1976
03/30/1976US3947850 Notch fed electric microstrip dipole antenna
03/16/1976US3945016 Wide-band spiral antenna
03/02/1976US3942180 Wide-band omnidirectional antenna
02/1976
02/10/1976US3938161 Microstrip antenna structure
01/1976
01/13/1976US3932875 Directional antenna
01/13/1976US3932874 Broadband turnstile antenna
01/13/1976US3932873 Shortened aperture dipole antenna
01/06/1976US3931625 Shortened multi-rod broadband antenna