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)
06/1994
06/28/1994US5325103 Lightweight patch radiator antenna
06/21/1994US5323169 Compact, high-gain, ultra-wide band (UWB) transverse electromagnetic (TEM) planar transmission-line-array horn antenna
06/09/1994WO1994013030A1 A y-antenna
06/09/1994WO1994013028A1 Tunable microwave devices incorporating high temperature superconducting and ferroelectric films
06/09/1994CA2150690A1 Tuneable microwave devices incorporating high temperature superconducting and ferroelectric films
06/07/1994US5319377 Wideband arrayable planar radiator
05/1994
05/31/1994US5317329 Microwave detector and horn antenna structure therefor
05/31/1994CA2005364C Embedded surface wave antenna
05/26/1994WO1994011921A1 Antenna
05/25/1994EP0598656A1 Radiating element for an antenna array and sub-set with such elements
05/25/1994EP0598580A1 Cross-slot microwave antenna
05/24/1994US5315303 Compact, flexible and integrated millimeter wave radar sensor
05/17/1994US5313218 Antenna assembly
05/17/1994CA2102479A1 Cross-slot microwave antenna
05/11/1994EP0596618A2 Lightweight patch radiator antenna
05/11/1994CN1024447C Elastic capsule microwave heater
05/10/1994US5311199 Honeycomb cross-polarized load
05/04/1994EP0594714A1 Antipilferage markers
05/03/1994US5309165 Positioner with corner contacts for cross notch array and improved radiator elements
05/03/1994US5307556 Method of manufacturing a micro-strip antenna
05/03/1994CA1329257C Dual-polarized printed circuit antenna having its elements, including gridded printed circuit elements, capacitively coupled to feedlines
04/1994
04/28/1994WO1994009530A1 A radiating coaxial cable and a method for making the same
04/28/1994WO1994009529A1 Cable for use as a distributed antenna
04/26/1994CA1328922C Dual frequency microwave feed assembly
04/19/1994US5305001 Horn radiator assembly with stepped septum polarizer
04/19/1994US5305000 Low loss electromagnetic energy probe
04/19/1994US5304998 Dual-mode communication antenna
04/13/1994EP0591323A1 Planar zig-zag antenna
04/13/1994CN2162001Y Three wavebands feeding source for bias feeding antenna
04/12/1994CA1328504C Microstrip antenna system with multiple frequency elements
03/1994
03/23/1994CN2159614Y Light, High effective, low noise antenna
03/09/1994EP0585877A1 Printed antenna
03/09/1994CN2158581Y Aerial of taper type
03/01/1994US5291164 Radiating high frequency line
02/1994
02/23/1994EP0583616A1 Signal transmission cable holder
02/22/1994US5289200 Tab coupled slots for waveguide fed slot array antennas
02/16/1994CN2156590Y C. Ku wave band antenna composite feeding source
02/08/1994CA2006291C Bifrequency radiating device
02/01/1994US5283588 Monopulse tracking apparatus
02/01/1994CA2009921C Electronic circuit device with coupling stub
01/1994
01/25/1994US5281894 For producing a flow of electrons
01/12/1994EP0577832A1 Flat slot array
01/12/1994CN2153149Y Double-beam aerial
01/11/1994US5278575 Broadband microstrip to slotline transition
01/06/1994WO1994000892A1 A waveguide and an antenna including a frequency selective surface
01/05/1994EP0577320A1 Horn radiator assembly with stepped septum polarizer
01/05/1994EP0383880B1 Antenna lamination technique
01/04/1994US5276457 Integrated antenna-converter system in a unitary package
01/04/1994US5276456 Antenna feed with selectable relative polarization
01/04/1994US5276413 High frequency radiation cable including successive sections having increasing number of openings
01/04/1994US5276410 Circular to linear polarization converter
12/1993
12/21/1993US5272487 Elliptically polarized antenna
12/21/1993US5272485 Microstrip antenna with integral low-noise amplifier for use in global positioning system (GPS) receivers
12/15/1993EP0574021A1 Multi-depth corrugated horn antenna
12/09/1993WO1993024244A1 Underwater acoustic antenna having a surface sensor
12/08/1993EP0572950A1 Radar motion detector with variably adjustable transmit and receive direction angles
12/07/1993US5268702 P-type antenna module and method for manufacturing the same
12/07/1993US5268701 Radio frequency antenna
12/07/1993US5268696 Slotline reflective phase shifting array element utilizing electrostatic switches
12/02/1993DE4217900A1 Arrangement of microwave-transparent pane in hollow waveguide - the pane being glued to part attached to the vacuum chamber
11/1993
11/30/1993US5266962 Method of converting transverse electrical modes and a helically outlined aperture antenna for implementing the method
11/30/1993US5266961 Continuous transverse stub element devices and methods of making same
11/24/1993EP0570863A2 Surveillance radar antenna in flat configuration
11/24/1993EP0527178A4 A flat plate antenna
11/23/1993US5264860 Metal flared radiator with separate isolated transmit and receive ports
11/16/1993US5262791 Multi-layer array antenna
11/10/1993CN2146057Y Deformed conical corrugated speaker
11/03/1993EP0568518A1 Detection method and system
10/1993
10/30/1993CA2095097A1 Detection method and system
10/27/1993EP0566836A2 High frequency therapeutic device
10/20/1993EP0565725A1 Antenna device for radio apparatus
10/19/1993CA1323419C Planar array antenna, comprising coplanar waveguide printed feed lines cooperating with apertures in a ground plane
10/13/1993EP0565051A1 Wideband arrayable planar radiator
10/06/1993EP0564266A2 Circular polarization apparatus for micro wave antenna
09/1993
09/29/1993EP0205570B1 A compound dielectric multi-conductor transmission line
09/28/1993US5248987 Widebeam antenna
09/23/1993DE4307009A1 Multi-beam antenna device for radar system of e.g. automobile - has offset antenna supported by common holder with radar modules each having integral prim. radiator
09/22/1993EP0561753A1 An antenna arrangement
09/22/1993EP0561272A1 Transparent window antenna
09/21/1993US5247270 Dual leaky cables
09/16/1993DE4306056A1 Microstrip antenna having circular dielectric substrate - has emitter electrode with central clear volume in which circuit on board is moulded with external connections.
09/14/1993US5245353 Dual waveguide probes extending through back wall
09/14/1993US5245352 Threshold sensitive low visibility reflecting surface
09/14/1993US5245349 Flat-plate patch antenna
09/07/1993USH1230 Microstrip frequency-scan antenna
09/07/1993US5243353 Circularly polarized broadband microstrip antenna
09/07/1993US5243290 Apparatus and method of logging using slot antenna having two nonparallel elements
09/02/1993WO1993017466A1 Dual band signal receiver
09/02/1993CA2130750A1 Dual band signal receiver
08/1993
08/25/1993EP0556941A1 Integrated antenna-converter system in a unitary package
08/24/1993CA2031866C Mobile radio communication apparatus
08/19/1993WO1993016502A1 Dual mode/dual band feed structures
08/19/1993CA2129641A1 Dual mode/dual band feed structures
08/03/1993US5233364 Dual-polarized microwave antenna element
07/1993
07/27/1993US5231414 Center-fed leaky wave antenna
07/27/1993US5231411 One piece millimeter wave phase shifter/antenna
07/27/1993US5231409 Microwave antenna capable of operating at high temperature, in particular for a space-going aircraft
07/21/1993EP0290508B1 Orthogonal mode electromagnetic wave launcher
07/20/1993US5229777 Microstrap antenna
07/20/1993US5229736 Waveguide polarization coupling