Patents
Patents for H01Q 13 - Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave (15,760)
10/1992
10/29/1992DE4213539A1 Koaxial-/hohlleiter-umsetzer Coax / waveguide connection-verter
10/21/1992EP0509214A2 High-efficiency bi-directional spatial power combiner amplifier
10/20/1992US5157393 Communication system for transmitting data between a transmitting antenna utilizing leaky coaxial cable and a receive antenna in relative movement to one another
10/06/1992US5153600 Multiple-frequency stacked microstrip antenna
09/1992
09/30/1992EP0506061A1 Broadband continuously flared notch phased-array radiating element with controlled return loss contour
09/29/1992CA2063147A1 Broadband continuously flared notch phase-array radiating element with controlled return loss contour
09/29/1992CA1308178C Radiating coaxial cable with improved flame retardancy
09/26/1992WO1992016982A1 Flat slot array
09/26/1992CA2106998A1 Planar slot antenna grid
09/23/1992EP0504842A1 Array antenna
09/22/1992CA1307842C Dual polarization microstrip array antenna
09/15/1992US5148181 Mobile radio communication apparatus
09/09/1992EP0502818A1 Planar antenna
09/09/1992EP0502337A1 Leaky high frequency cable
09/08/1992US5146232 Low profile antenna for land mobile communications
09/02/1992EP0501224A1 Waveguide slot antenna
09/01/1992US5144320 Switchable scan antenna array
08/1992
08/25/1992US5142255 Planar active endfire radiating elements and coplanar waveguide filters with wide electronic tuning bandwidth
08/24/1992CA2061627A1 Slotted waveguide array
08/20/1992WO1992014277A1 Radar antenna
08/20/1992WO1992014276A1 Evanescent field impulse radar antenna
08/18/1992US5140334 Compact omnidirectional antenna
08/06/1992WO1992013393A1 Antenna device
08/05/1992EP0497702A1 Radiating element structure for a plate antenna
08/05/1992EP0497249A1 Array antenna, particularly for space application
08/05/1992EP0288497B1 Array beam position control using compound slots
08/04/1992US5136304 Electronically tunable phased array element
07/1992
07/29/1992CN1063181A Short horn antenna which back radiates transverse electromagnetic wave
07/28/1992US5134420 Bicone antenna with hemispherical beam
07/14/1992CA1305249C Scanning antenna
07/07/1992CA1304816C Multimode omni antenna with flush mount
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
07/01/1992EP0493014A1 Patch antenna
07/01/1992EP0492958A2 Leaky cables
06/1992
06/30/1992US5126750 Magnetic hybrid-mode horn antenna
06/23/1992US5124733 Stacked microstrip antenna
06/23/1992US5124714 Dual slot planar mobile antenna fed with coaxial cables
06/17/1992EP0490760A1 Annular-ring microstrip antenna with reduced natural frequency and vehicle with at least such an antenna
06/17/1992EP0489934A1 Flat antenna
06/15/1992CA2057659A1 Ring-type antenna, with reduced center working frequency, and vehicle equipped with at least one such antenna
06/10/1992EP0489612A1 Waveguide antenna using flush-mounted slots
06/09/1992US5121129 EHF omnidirectional antenna
06/03/1992CN1016925B Distributed antenna system
06/02/1992CA1302527C Quasi-optical stripline devices
05/1992
05/28/1992CA2056157A1 Slotted waveguide-type antenna mounted on a wall
05/27/1992EP0487387A1 Low profile microwave slot antenna
05/27/1992EP0487053A1 Improved antenna structure
05/26/1992US5117240 Multimode dielectric-loaded double-flare antenna
05/26/1992US5117237 Quasi-optical stripline devices
05/14/1992DE4035793A1 Dielectric array aerial for satellites, aircraft etc. - has dielectric radiators for reducing element number to min
05/13/1992EP0484347A1 Multi-resonant laminar antenna
05/12/1992US5113197 Conformal aperture feed array for a multiple beam antenna
04/1992
04/28/1992US5109232 Dual frequency antenna feed with apertured channel
04/28/1992US5109203 Generated and method for generating microwaves
04/22/1992EP0481417A1 Device for feeding an antenna element radiating two orthogonal polarisations
04/21/1992US5107274 Collocated non-interfering dual frequency microwave feed assembly
04/15/1992EP0480273A1 Microwave Radiator
04/08/1992EP0479696A1 Microwave plate antenna, especially for Doppler radar
04/01/1992EP0477951A2 Dielectric flare notch radiator with separate transmit and receive ports
04/01/1992EP0300024B1 Slot antenna in circular waveguide
03/1992
03/29/1992CA2049597A1 Dielectric flare notch radiator with separate transmit and receive ports
03/25/1992EP0477102A1 Directional network with adjacent radiator elements for radio communication system and unit with such a directional network
03/25/1992EP0476131A1 Electromagnetic antenna collimator
02/1992
02/05/1992EP0469506A1 Radio transmission apparatus using leaky cables
01/1992
01/29/1992EP0468620A2 Dual band frequency reuse antenna
01/29/1992EP0468413A2 Plane antenna with high gain and antenna efficiency
01/14/1992US5081466 Tapered notch antenna
01/09/1992DE4120652A1 Transmit or receiver aerial covering VHF, UHF and SHF ranges - has long tube section with surface slot pattern and enclosed by metal plates
01/02/1992EP0463649A1 Planar antenna for linearly polarized waves
12/1991
12/31/1991US5076655 Antenna-fed electro-optic modulator
12/26/1991WO1991020108A1 Flat antenna
12/24/1991US5075691 Multi-resonant laminar antenna
12/24/1991CA1293563C Electromagnetically coupled printed-circuit antennas having patches or slots capacitively coupled to feedlines
12/17/1991US5073782 Contraband detection system
12/15/1991WO1991020109A1 Microwave antennas
12/15/1991CA2085131A1 Microwave antennas
12/11/1991EP0190279B1 Radio frequency polariser
12/03/1991US5070340 Broadband microstrip-fed antenna
12/03/1991US5070339 Tapered-element array antenna with plural octave bandwidth
11/1991
11/27/1991EP0458620A2 Microwave antennas
11/26/1991US5068670 Broadband microwave slot antennas, and antenna arrays including same
11/21/1991EP0456680A1 Antenna arrays.
11/20/1991CN2089209U Wide band high performance corrugated horn
11/13/1991EP0456034A2 Bicone antenna with hemispherical beam
11/06/1991EP0455493A2 Tapered notch antenna
11/05/1991US5063363 Electromagnetic energy radiation pick-up
10/1991
10/31/1991WO1991017586A1 A flat plate antenna
10/31/1991CA2080244A1 Flat plate antenna
10/29/1991US5061943 Planar array antenna, comprising coplanar waveguide printed feed lines cooperating with apertures in a ground plane
10/29/1991US5061939 Flat-plate antenna for use in mobile communications
10/29/1991US5061938 Microstrip antenna
10/15/1991CA1290847C Vehicle antenna with shiftable gain patterns
10/10/1991DE4011344A1 Antenna for use as divining rod or for scientific investigation - has separate conductors in resonator circuit dimensioned to match transmission chamber characteristic impedance
10/09/1991EP0450881A2 Microstrip antennas
10/08/1991US5055853 Magnetic frill generator
10/08/1991US5055852 Diplexing radiating element
10/08/1991CA1290449C Device for exciting a circularly polarized wage guide by means of a planar antenna
10/07/1991WO1991015879A1 Electromagnetic antenna collimator
10/07/1991CA2058628A1 Electromagnetic antenna collimator
10/02/1991EP0449492A1 Patch antenna with polarization uniformity control