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)
06/1988
06/22/1988EP0271517A1 Array antenna.
06/15/1988EP0271458A2 Electromagnetically coupled printed-circuit antennas having patches or slots capacitively coupled to feedlines
06/14/1988US4751515 Electromagnetic structure and method
06/14/1988US4751513 Light controlled antennas
06/14/1988US4751136 Metal foil laminated to porous dielectric through water-impermeable film
06/08/1988EP0270209A2 Dual-band circularly polarised antenna with hemispherical coverage
06/07/1988US4750000 Ultra-broadband impedance matched electrically small self-complementary signal radiating structures with impedance-inverting feed for complementary pairs using thin wire elements
06/07/1988US4749996 Double tuned, coupled microstrip antenna
06/07/1988CA1237808A1 Crossed-drooping dipole antenna
06/01/1988DE3701518A1 Radio antenna having two or more than two radiator sections which are arranged one above the other and are formed by rods
05/1988
05/25/1988EP0268089A2 Passive transponder
05/25/1988CN87209440U Full-channel tv recreving antenna with v-shape oscillator
05/24/1988US4746927 VOR antenna design
05/24/1988US4746925 Shielded dipole glass antenna with coaxial feed
05/10/1988US4743918 Antenna comprising a device for excitation of a waveguide in the circular mode
05/10/1988US4743906 Time domain radio transmission system
05/04/1988EP0266264A1 Attack simulator by means of an electromagnetic pulse
04/1988
04/26/1988US4740793 Antenna elements and arrays
04/26/1988CA1235752A1 Portable radio communication apparatus comprising an antenna member for a broad-band signal
04/20/1988EP0264170A1 An antenna
04/20/1988EP0264056A2 Vehicle antenna with shiftable gain patterns
04/12/1988US4737797 Microstrip balun-antenna apparatus
04/12/1988US4737793 Radio frequency antenna with controllably variable dual orthogonal polarization
04/05/1988US4736454 Integrated oscillator and microstrip antenna system
03/1988
03/24/1988WO1988002189A1 Passive resonant halfwave antenna element for antennas operating in the vhf or uhf band and an antenna using these elements
03/15/1988CA1234214A1 Vibration-tolerant whip antenna
03/08/1988US4730195 Shortened wideband decoupled sleeve dipole antenna
03/02/1988EP0257657A2 Substrate for high-frequency circuit and process for making the same
03/02/1988EP0257544A2 Receiving device for microwave signals
03/01/1988US4728960 Multifunctional microstrip antennas
02/1988
02/18/1988DE3627597A1 Conformal antenna for missiles
02/16/1988US4725848 Constant beamwidth spiral antenna
02/16/1988US4725845 Retractable helical antenna
02/09/1988US4724443 Patch antenna with a strip line feed element
02/09/1988US4724427 Transponder device
02/04/1988DE3625113A1 Aerial element which is provided for a phased-array antenna
02/03/1988EP0255095A2 Transponder antenna
01/1988
01/28/1988WO1988000785A1 Transponder device
01/27/1988EP0254373A1 Antenna for high frequencies
01/26/1988US4721962 Antenna for a transceiver, particularly portable telephone
01/19/1988US4719699 In the construction of a balun
01/14/1988DE3621117A1 Vehicle antenna for the decimetric waveband
01/13/1988EP0252648A1 A dipole
01/12/1988US4719471 Angulated FM antenna
01/12/1988US4719470 Broadband printed circuit antenna with direct feed
12/1987
12/17/1987WO1987007772A1 Array antenna
12/16/1987EP0249303A1 A dipole array
12/02/1987EP0247454A1 Broadbanded microstrip antenna having series-broadbanding capacitance integral with feedline connection
11/1987
11/25/1987EP0246690A1 Microwave component
11/24/1987US4709239 Dipatch antenna
11/19/1987EP0246026A2 Antenna for wireless communication equipment
11/10/1987US4706050 Microstrip devices
10/1987
10/28/1987EP0243289A1 Plate antenna with two crossed polarizations
10/20/1987US4701764 Miniature high-gain antenna
10/20/1987US4701763 Small antenna
10/15/1987DE3611077A1 Arrangement for wireless information transmission by means of electromagnetic waves at an extremely low frequency
10/13/1987US4700194 Small antenna
10/06/1987US4698633 Antennas for wide bandwidth signals
09/1987
09/29/1987US4697191 Omniazimuthal antenna
09/29/1987US4697190 Borehole located directional antennae means for electromagnetic sensing systems
09/29/1987US4697189 Microstrip antenna
09/16/1987CN86201859U Logarithm plane spiral receiving antenna for tv set
09/08/1987US4692772 Antenna extended surface attachment
09/08/1987US4692769 Dual band slotted microstrip antenna
09/01/1987US4691209 Wideband antenna
08/1987
08/19/1987EP0232314A1 Mobile antenna feed system.
08/18/1987CA1225738A1 Whip antenna high voltage protection device
08/11/1987US4686536 Crossed-drooping dipole antenna
08/04/1987US4684953 Reduced height monopole/crossed slot antenna
07/1987
07/22/1987EP0229552A1 Wide band discone antenna
07/21/1987CA1224562A1 Half-loop antenna for land vehicle
07/08/1987EP0228297A2 Broadband microstrip antennas
07/08/1987EP0227804A1 Axial multipole mobile antenna
06/1987
06/24/1987EP0226390A2 Shorted microstrip antenna
06/23/1987US4675691 Split curved plate antenna
06/23/1987US4675685 Low VSWR, flush-mounted, adaptive array antenna
06/23/1987CA1223339A1 Cellular mobile communications antenna
06/16/1987US4673949 Wideband VHF/UHF radio antenna with quarter-wave transformer
06/16/1987EP0225460A2 Transmit-receive antenna, especially for short and medium waves
06/02/1987US4670760 Antenna apparatus and method for curtailing sky waves
05/1987
05/26/1987US4668956 Broadband cup antennas
05/26/1987CA1222315A1 Tactical high frequency array antennas
05/20/1987CN85103804A Antenna device for receiving and transmitting electromagnetic waves
05/05/1987US4663632 Extendable directional dipole antenna
04/1987
04/28/1987US4661821 Vandalism-resistant UHF antenna
04/22/1987EP0218843A2 Diversity antenna for mobile radio devices
04/21/1987US4660048 Microstrip patch antenna system
04/21/1987US4660047 Microstrip antenna with resonator feed
04/15/1987CN86204013U Universal joint interface of antenna and junction of antenna pole
04/15/1987CN86203376U Antenna for inducing radio communication
04/14/1987US4658266 Vertical antenna with improved artificial ground system
04/14/1987US4658262 Dual polarized sinuous antennas
04/14/1987US4658260 Telescoping multiband antenna
04/08/1987EP0217426A2 Microstrip antenna device
04/08/1987EP0216907A1 Multiband antenna.
04/07/1987US4656485 Four wire dual mode spiral antenna
04/07/1987US4656483 Switchable antenna for the VHF and UHF frequency bands
03/1987
03/31/1987US4654622 Monolithic integrated dual mode IR/mm-wave focal plane sensor
03/24/1987US4652888 Miniature tactical HF antenna
03/18/1987EP0214806A2 Portable radio