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)
07/1993
07/15/1993DE4200755A1 Centrally fed, two-reflector, microwave directional antenna - has coaxial, primary horn radiator with toroidal annular aperture with parallel polarised field
07/13/1993US5227808 Wide-band L-band corporate fed antenna for space based radars
07/13/1993US5227800 Contraband detection system
07/13/1993US5227749 Structure for making microwave circuits and components
07/08/1993WO1993013570A1 Widebeam antenna
07/07/1993EP0271504B1 Horn antenna array phase matched over large bandwidths
07/06/1993CA1319976C Slotted waveguide antenna
07/01/1993DE4244136A1 Integrated laminated microwave circuit for motor vehicle communication system - has antenna circuit on one side of substrate with transmit and receive circuit on other side
06/1993
06/23/1993EP0547800A1 Monopulse tracking apparatus
06/23/1993EP0547574A1 Radiating high-frequency cable
06/16/1993EP0546601A1 Planar antenna
06/16/1993CN1073303A Dielectric material for antennas
06/15/1993US5220337 Notched nested cup multi-frequency band antenna
06/15/1993US5220330 Broadband conformal inclined slotline antenna array
06/10/1993WO1993011582A1 Compact broadband microstrip antenna
06/09/1993EP0545742A1 Method and device for the rejection of harmonics emitted by an active antenna having electronic scanning
06/08/1993US5218373 Hermetically sealed waffle-wall configured assembly including sidewall and cover radiating elements and a base-sealed waveguide window
06/08/1993US5218368 Array antenna with radiation elements and amplifiers mounted on same insulating film
06/02/1993EP0544378A1 Phased array antenna module
06/02/1993CN1072799A Simple method for changing resonance frequency and input standing-wave ratio of micro-strip antenna
06/01/1993US5216433 Polarimetric antenna
06/01/1993US5216432 Dual mode/dual band feed structure
05/1993
05/28/1993CA2083539A1 Phased array antenna module
05/27/1993DE4139245A1 Small flat microwave slot aerial - has sec. transmitter structure of alternate dielectric and conductive layers
05/26/1993CN2134721Y Wide fb and fs compound feed current means
05/25/1993US5214394 High efficiency bi-directional spatial power combiner amplifier
05/19/1993EP0542595A1 Microstrip antenna device especially for satellite telephone transmissions
05/19/1993EP0542447A1 Flat plate antenna
05/13/1993WO1993009576A1 Antenna device for radio apparatus
05/12/1993EP0541276A1 Broadband conformal inclined slotline antenna array
05/11/1993US5210542 Microstrip patch antenna structure
05/11/1993US5210541 Microstrip patch antenna arrays
04/1993
04/28/1993CN2131211Y Waveguide coaxial feed apparatus
04/27/1993US5206655 High-yield active printed-circuit antenna system for frequency-hopping space radar
04/21/1993EP0537548A1 Microstrip antenna structure suitable for use in mobile radio communications and method for making same
04/14/1993EP0536522A2 Continuous traverse stub element devices and method for making same
04/14/1993CN1020318C Short horn antenna which back radiates transverse electromagnetic wave
04/13/1993US5202698 Directional radiocommunication array
04/13/1993US5202697 Low-profile steerable cardioid antenna
04/07/1993EP0535780A1 A compact, flexible, and integrated millimeter wave radar sensor
04/06/1993US5200757 Microwave antennas having both wide elevation beamwidth and a wide azimuth beamwidth over a wide frequency bandwidth
03/1993
03/31/1993EP0534796A1 Broadband microstrip to slotline transition
03/31/1993EP0533810A1 Microwave antennas.
03/30/1993CA1315396C Internally mounted broadband antenna
03/23/1993CA1314972C Surface of revolution type reflector antenna
03/17/1993EP0531800A1 Asymmetrically flared notch radiator
03/16/1993US5194876 Dual polarization slotted antenna
03/16/1993US5194875 For high frequency signals
03/10/1993EP0531164A1 Portable radio communication apparatus
03/02/1993USH1151 Folded cavity antenna
02/1993
02/27/1993CA2076700A1 Asymmetrically flared notch radiator
02/24/1993EP0476131A4 Electromagnetic antenna collimator
02/23/1993US5189432 Radiating antenna cable apparatus
02/18/1993WO1993003507A1 Vehicle antenna
02/18/1993WO1993003387A1 Broadband antennas and electromagnetic field simulators
02/17/1993EP0527714A1 Cavity Antenna
02/17/1993EP0527569A1 Microwave antenna
02/17/1993EP0527417A1 Miniaturized radio frequency antenna element
02/17/1993EP0527178A1 A flat plate antenna
02/16/1993US5187489 Asymmetrically flared notch radiator
02/11/1993DE4125898A1 Fahrzeugantenne Vehicle Antenna
02/10/1993EP0526643A1 Antenna device
02/10/1993EP0526457A1 Antenna
02/09/1993US5185611 Compact antenna array for diversity applications
02/09/1993US5185586 Method and apparatus for digital synthesis of microwaves
02/08/1993CA2075451A1 Miniature basic radio-antenna
02/03/1993CN1068510A Spring bag type microwave heater for heat therapy
02/02/1993US5184137 All weather tactical strike system (AWTSS) and method of operation
02/02/1993CA1313408C Wide band antenna for mobile communications
01/1993
01/21/1993WO1993001571A1 Antipilferage markers
01/20/1993EP0523802A1 Feedhorn
01/19/1993CA1312946C Tunnel distributed cable antenna system with signal taps coupling approximately same radiated energy
01/07/1993WO1993000721A1 Planar zig-zag antenna
01/07/1993EP0521384A1 Multiple-frequency stacked microstrip antenna
01/07/1993EP0521377A2 Microstrip patch antenna structure
01/05/1993US5177496 Flat slot array antenna for te mode wave
01/05/1993US5177494 Vehicular slot antenna system
01/04/1993CA2071325A1 Microstrip patch antenna structure
01/02/1993CA2072502A1 Multiple-frequency stacked microstrip antenna
12/1992
12/30/1992EP0520908A1 Linear antenna array
12/29/1992WO1993000723A1 Linear array antenna
12/29/1992US5175561 Single-layered radial line slot antenna
12/29/1992US5175560 Notch radiator elements
12/29/1992US5175555 Combined radar altimeter, radiometer sensor employing multiport feed horn having blended sidewall geometry
12/29/1992CA2090323A1 Linear array antenna
12/29/1992CA1312138C Multimode-dielectric-loaded multi-flare antenna
12/22/1992US5173714 Slot array antenna
12/16/1992EP0518663A2 Primary horn for parabolic-reflector antenna
12/16/1992EP0518615A2 Wave guide to microstrip line mode transition apparatus
12/16/1992EP0518271A1 Elemental microwave antenna with two polarisations
12/15/1992US5172127 Waveguide antenna having a plurality of broad-side slots provided with a spatial filter
12/11/1992CA2070705A1 Dual polarization elementary microwave antenna
12/09/1992EP0516661A1 Open transmission line locating system.
12/08/1992US5170174 Patch-excited non-inclined radiating slot waveguide
12/02/1992EP0516525A1 Slot antenna having two nonparallel elements
11/1992
11/25/1992EP0515192A1 Notched nested cup multi-frequency band antenna
11/24/1992US5166698 Electromagnetic antenna collimator
11/10/1992US5162808 Antenna feed with selectable relative polarization
11/10/1992US5162803 Beamforming structure for modular phased array antennas
11/03/1992US5160936 Multiband shared aperture array antenna system