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)
01/1993
01/26/1993US5182570 End fed flat antenna
01/20/1993EP0524045A1 Antenna for decametric waves with reduced wind load
01/19/1993US5181044 Top loaded antenna
01/19/1993US5181025 Conformal telemetry system
01/12/1993US5179387 Whip antenna operable without grounding
01/07/1993EP0521384A1 Multiple-frequency stacked microstrip antenna
01/07/1993EP0521377A2 Microstrip patch antenna structure
01/07/1993EP0521264A2 Antenna device with feed
01/04/1993CA2071325A1 Microstrip patch antenna structure
01/02/1993CA2072502A1 Multiple-frequency stacked microstrip antenna
12/1992
12/30/1992EP0520851A1 Antenna combination for reception of signals from satellites and groundstations, particularly for the reception of digital audio broadcasting signals
12/30/1992EP0520197A2 Foil antenna
12/23/1992WO1992022824A1 Method and apparatus for transmitting electromagnetic signals into the earth from a capacitor
12/23/1992CN1019624B Extendible omnibearing wide-band antenna
12/22/1992US5173713 Three element inverted conical monopole with series inductance and resistance in each element
12/22/1992US5173711 Microstrip antenna for two-frequency separate-feeding type for circularly polarized waves
12/16/1992EP0518516A2 Antenna for sensing stray RF radiation
12/16/1992EP0518271A1 Elemental microwave antenna with two polarisations
12/15/1992US5172128 Antenna with circular polarization, notably for antenna array
12/15/1992US5172126 Low noise lumped parameter active receiving antenna
12/15/1992CA1311554C Ultra-broadband linearly polarized biconical antenna
12/11/1992CA2070705A1 Dual polarization elementary microwave antenna
12/08/1992US5170175 Thin film resistive loading for antennas
12/02/1992EP0516525A1 Slot antenna having two nonparallel elements
12/02/1992EP0516303A1 Planar antenna
12/01/1992US5168279 Antenna for sensing stray rf radiation
11/1992
11/25/1992EP0514378A1 End fed flat antenna
11/24/1992US5166697 Complementary bowtie dipole-slot antenna
11/19/1992EP0513287A1 Motion detector unit.
11/17/1992US5165109 Microwave communication antenna
11/11/1992EP0305486B1 Capacitance loaded helical monopole antenna
11/10/1992US5162806 Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies
11/04/1992CN2121083U Pocket full frequency channel tv. indoor antenna
10/1992
10/29/1992WO1992019020A1 Microstrip line/waveguide transition
10/21/1992EP0509339A1 Antenna with top loading capacity for a mobile telephone
10/15/1992WO1992017866A1 Article sorting system
10/14/1992CN2119034U Full direction base station antenna
10/13/1992US5155495 Radio antennas
10/13/1992US5155493 Tape type microstrip patch antenna
10/06/1992US5153600 Multiple-frequency stacked microstrip antenna
09/1992
09/29/1992US5151708 Shortened mast antenna with compensating circuits
09/23/1992CN2116968U Directional antenna
09/22/1992CA1307842C Dual polarization microstrip array antenna
09/15/1992US5148181 Mobile radio communication apparatus
09/09/1992EP0502818A1 Planar antenna
09/08/1992US5146234 Dual polarized spiral antenna
09/08/1992US5146232 Low profile antenna for land mobile communications
09/01/1992US5144324 Antenna arrangement for a portable transceiver
08/1992
08/26/1992CN2114224U Wound-type ring string aerial
08/19/1992CN2113559U Pneumatic telescopic antenna
08/06/1992WO1992013393A1 Antenna device
08/06/1992WO1992013372A1 Broadband antenna
08/05/1992EP0497702A1 Radiating element structure for a plate antenna
08/05/1992EP0497196A2 Antenna with multiple elements
07/1992
07/28/1992US5134419 Three-wave shared antenna (radio, am, and fm) for automobile
07/22/1992CN1062997A Rotating antenna with wire dipoles
07/21/1992US5132698 Choke-slot ground plane and antenna system
07/21/1992US5132623 Method and apparatus for broadband measurement of dielectric properties
07/15/1992CN2110292U Wide-band outdoor t. v. antenna
07/14/1992CA1305249C Scanning antenna
07/08/1992CN2109642U Wide band whip antenna
07/08/1992CN2109641U Nine unit full channel compound vibrator tv antenna
07/08/1992CN2109640U Mini tv set antenna
07/02/1992DE4141870A1 Planar surface antenna for retro-fit to motor vehicle - comprises flat element on baseplate, earthed to bodywork and dimensioned for rainfall of 100 mm per hour
07/01/1992EP0493237A1 Rotary curtain antenna with dipoles
07/01/1992EP0493190A1 Stacked microstrip microwave antenna
07/01/1992EP0493014A1 Patch antenna
07/01/1992EP0492022A1 Wide band radio antenna with weak stationary wave rating
06/1992
06/30/1992US5126751 Flush mount antenna
06/24/1992EP0471799A4 Time domain radio transmission system
06/23/1992US5124733 Stacked microstrip antenna
06/23/1992US5124714 Dual slot planar mobile antenna fed with coaxial cables
06/23/1992US5124713 Planar microwave antenna for producing circular polarization from a patch radiator
06/17/1992EP0490760A1 Annular-ring microstrip antenna with reduced natural frequency and vehicle with at least such an antenna
06/16/1992US5122809 Microwave electric power receiver
06/15/1992CA2057659A1 Ring-type antenna, with reduced center working frequency, and vehicle equipped with at least one such antenna
06/11/1992WO1992009905A1 Motion detector unit
06/09/1992US5121127 Microstrip antenna
06/03/1992CN2106426U Spiral goat horn type aerial
06/02/1992US5119099 Microwave responder
05/1992
05/21/1992CA2055765A1 Method and apparatus for broadband measurement of dielectric properties
05/13/1992EP0484454A1 Transmitting and receiving arrangement for portable appliances.
05/13/1992EP0484347A1 Multi-resonant laminar antenna
05/06/1992EP0484241A1 Printed circuit antenna for a dual polarized antenna array
05/05/1992US5111211 Broadband patch antenna
04/1992
04/22/1992EP0481417A1 Device for feeding an antenna element radiating two orthogonal polarisations
04/22/1992EP0481048A1 Microstrip radiator for circular polarization free of welds and floating potentials
04/22/1992EP0480917A1 A solid dielectric lens aerial
04/15/1992CN1016300B 天线 Antenna
04/14/1992US5105199 Method and apparatus for tube element bracket
04/01/1992EP0477951A2 Dielectric flare notch radiator with separate transmit and receive ports
04/01/1992EP0477799A1 Standoff sensor antennae for munitions having explosively formed penetrators
03/1992
03/29/1992CA2049597A1 Dielectric flare notch radiator with separate transmit and receive ports
03/25/1992CN2100034U High gain full frequency channel aerial
03/24/1992US5099249 Microstrip antenna for vehicular satellite communications
03/12/1992DE4027234A1 Antenna for motor boat - is integrated into guard rail port, starboard and bow sections
03/11/1992EP0474490A1 Antenna assembly
03/11/1992CN2098742U Outdoor tv antenna with fan-shaped combined vibrator
03/04/1992EP0472932A1 Electronic article surveillance tag and method for implementing same
02/1992
02/26/1992EP0471799A1 Time domain radio transmission system.