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) |
---|
12/14/1993 | US5270725 Rotating antenna with wire dipoles |
12/14/1993 | US5270722 Patch-type microwave antenna |
12/14/1993 | CA1325269C Balanced low profile hybrid antenna |
12/09/1993 | CA2097122A1 Adjustable beam tilt antenna |
12/08/1993 | EP0573319A1 Microwave antenna for transmit-receive systems of vehicles |
12/08/1993 | EP0232314B1 Mobile antenna feed system |
12/08/1993 | CN2149021Y Communication whip antenna adapted for frequency hopping radio station |
12/07/1993 | US5268703 Decorative antenna |
12/07/1993 | US5268702 P-type antenna module and method for manufacturing the same |
11/30/1993 | US5267297 Base station for a radio communication system |
11/30/1993 | CA2017511C Microwave responder |
11/24/1993 | CN2147653Y Double-layer multi-direction high gain TV antenna |
11/24/1993 | CN1078834A Switchable inductor for strong currents |
11/23/1993 | US5264862 High-isolation collocated antenna systems |
11/18/1993 | EP0570256A1 Switchable high current induction and antenna tuning circuit using the same |
11/16/1993 | US5262795 Unitary cellular antenna system |
11/16/1993 | US5262791 Multi-layer array antenna |
11/16/1993 | US5262783 Motion detector unit |
11/13/1993 | CA2095792A1 Switchable inductor for strong currents |
11/02/1993 | US5258769 Ominidirectional ground plane effect radiator |
11/02/1993 | US5258727 Microribbon/waveguide transition for plate type antenna |
10/27/1993 | CN2144869Y Aerial with plurality of divergent straight elements |
10/26/1993 | US5257032 Antenna system including spiral antenna and dipole or monopole antenna |
10/12/1993 | US5252979 Universal communication system |
10/05/1993 | CA1322786C Mobile communications antenna |
10/05/1993 | CA1322785C Extendable antenna for portable cellular telephones |
09/29/1993 | CN1076605A Efficient microwave therapeutic instrument |
09/28/1993 | US5248988 Antenna used for a plurality of frequencies in common |
09/22/1993 | EP0561753A1 An antenna arrangement |
09/21/1993 | US5245745 Method of making a thick-film patch antenna structure |
09/16/1993 | DE4306056A1 Microstrip antenna having circular dielectric substrate - has emitter electrode with central clear volume in which circuit on board is moulded with external connections. |
09/14/1993 | US5245349 Flat-plate patch antenna |
09/07/1993 | US5243353 Circularly polarized broadband microstrip antenna |
09/07/1993 | US5243290 Apparatus and method of logging using slot antenna having two nonparallel elements |
09/01/1993 | EP0557794A1 Glass antenna mounted into the window cutout of a metallic motorcar body |
08/31/1993 | US5241321 Dual frequency circularly polarized microwave antenna |
08/25/1993 | EP0557176A1 Feeding device for a plate antenna with two crossed polarizations and array equipped with such a device |
08/25/1993 | CN1075575A Decameter-wave dipole and rotating antenna equipped with this dipole |
08/24/1993 | CA2031866C Mobile radio communication apparatus |
08/05/1993 | WO1993015418A1 Device for wireless transfer of information |
08/05/1993 | DE4202383A1 Hand-held transceiver, e.g. cordless telephone - has electronic circuitry enclosed in banana-shaped frame which supports sliding housings of microphone and earphone |
08/04/1993 | EP0553094A1 Device for information transmission. |
08/03/1993 | USH1219 Electrically small cavity antenna |
08/03/1993 | US5233364 Dual-polarized microwave antenna element |
08/03/1993 | US5233360 Matching device for a microstrip antenna |
07/27/1993 | US5231412 Sleeved monopole antenna |
07/27/1993 | US5231407 Duplexing antenna for portable radio transceiver |
07/21/1993 | EP0552095A1 Directional antenna with high gain and with heatproof radiating element |
07/20/1993 | US5229784 Antenna mount |
07/20/1993 | US5229782 Stacked dual dipole MMDS feed |
07/20/1993 | US5229777 Microstrap antenna |
07/20/1993 | CA1320564C Beam powered antenna |
07/13/1993 | US5227807 Dual polarized ambidextrous multiple deformed aperture spiral antennas |
07/06/1993 | US5226061 Transmitters and transmitter circuits |
06/24/1993 | WO1993012559A1 Aerial arrangement, especially for communications terminals |
06/23/1993 | CN2137031Y Telephon aerial for car use |
06/22/1993 | US5221930 Adjustable dipole antenna |
06/15/1993 | US5220334 Multifrequency antenna, useable in particular for space telecommunications |
06/10/1993 | WO1993011582A1 Compact broadband microstrip antenna |
06/09/1993 | EP0545762A1 Dipole for decametric waves and rotary antenna using the same |
06/09/1993 | CN2135841Y All-channel tv antenna |
06/08/1993 | US5218372 Wide band spherical antenna with improved impedance-matching circuit |
06/01/1993 | US5216695 Short pulse microwave source with a high prf and low power drain |
06/01/1993 | US5216430 Low impedance printed circuit radiating element |
05/27/1993 | DE4138424A1 Receiver for directional HF and UHF radiation fields - has high conductivity quasi-surface element for specified reception and transmission frequency |
05/19/1993 | EP0542595A1 Microstrip antenna device especially for satellite telephone transmissions |
05/19/1993 | EP0542447A1 Flat plate antenna |
05/18/1993 | US5212494 Compact multi-polarized broadband antenna |
05/12/1993 | CN2133057Y Matrix omnidirectional tv. receiving antenna for indoor |
05/11/1993 | US5210542 Microstrip patch antenna structure |
05/05/1993 | EP0540125A1 Satellite antenna system |
05/05/1993 | EP0540124A1 Satellite antenna system |
05/05/1993 | CN2132291Y Receiving antenna for domestic combined full frequency channel tv set |
04/29/1993 | DE4236087A1 Tunable antenna system with controllable reactive circuit element - has level detector circuit producing signal which contains component at second harmonic frequency of dither signal |
04/21/1993 | EP0537548A1 Microstrip antenna structure suitable for use in mobile radio communications and method for making same |
04/13/1993 | US5202752 Monolithic integrated circuit device |
04/13/1993 | CA1316219C Card-type radio receiver having slot antenna integrated with housing thereof |
04/06/1993 | US5201072 Tuner for diversity reception having a fixed antenna and a retractive antenna |
04/06/1993 | US5200756 Three dimensional microstrip patch antenna |
04/01/1993 | WO1993006631A1 Adjustable helical antenna for a vhf radio |
03/30/1993 | CA1315396C Internally mounted broadband antenna |
03/24/1993 | EP0532854A1 Tuning device for a long wavelength antenna |
03/24/1993 | EP0532632A1 Omni-directional antenna array |
03/18/1993 | DE4130493A1 Aerial radiator with base element as ground surface - has elliptical conductive patch element at selected spacing from base element for resistance matching |
03/10/1993 | EP0216907B1 Multiband antenna |
03/09/1993 | US5192952 Method and apparatus for transmitting electromagnetic signals into the earth from a capacitor |
03/04/1993 | DE4128360A1 Identification appts. for moving vehicles - uses aerials on information carrier and checking device with reflectors for data exchange |
03/02/1993 | US5191352 Radio frequency apparatus |
03/02/1993 | US5191351 Folded broadband antenna with a symmetrical pattern |
03/02/1993 | US5191349 Apparatus and method for an amplitude monopulse directional antenna |
02/24/1993 | EP0528775A1 Miniature antenna |
02/24/1993 | EP0514378A4 End fed flat antenna |
02/16/1993 | US5187488 Tunable high-frequency antenna |
02/10/1993 | EP0526643A1 Antenna device |
02/10/1993 | EP0526457A1 Antenna |
02/10/1993 | CN1068912A Decameter-wave antenna with improved resistance to wind |
02/03/1993 | EP0525726A1 Circularly polarized wave microstrip antenna and frequency adjusting method therefor |
02/02/1993 | US5184143 Low profile antenna |
02/02/1993 | CA1313408C Wide band antenna for mobile communications |
01/28/1993 | DE4123997A1 Trapezoidal directional radiator for duo-band operation in VHF-UHF range - feeds in lambda 5/8 shanks of trapezium via non-radiating lambda/8 circuits in low-ohmic, identical phase manner |