| 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) |
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| 03/07/1989 | US4811028 Quadridge antenna for space vehicle |
| 03/07/1989 | US4811027 Broad-band directional antenna |
| 02/21/1989 | US4806941 Microwave component |
| 02/15/1989 | EP0303001A2 Horn antenna |
| 02/14/1989 | CA1250046A1 Microwave plane antenna for receiving circularly polarized waves |
| 02/14/1989 | CA1250045A1 Microwave plane antenna |
| 02/07/1989 | USH584 Dielectric omni-directional antennas |
| 02/07/1989 | US4803494 Wide band antenna |
| 02/07/1989 | US4803491 Antenna for wireless communication equipment |
| 02/07/1989 | CA1249881A1 Circularly polarizing antenna feed |
| 02/01/1989 | EP0301216A2 Broadband notch antenna |
| 01/25/1989 | EP0300147A1 Leaky coaxial cable radio frequency transmission device |
| 01/25/1989 | EP0300024A1 Slot antenna in circular waveguide. |
| 01/24/1989 | US4800351 Radiating coaxial cable with improved flame retardancy |
| 01/10/1989 | US4797681 Dual-mode circular-polarization horn |
| 12/28/1988 | EP0296838A2 Monolithic microwave transmitter/receiver |
| 12/20/1988 | US4792814 Conical horn antenna applicable to plural modes of electromagnetic waves |
| 12/20/1988 | US4792810 Microwave antenna |
| 12/20/1988 | US4792809 Microstrip tee-fed slot antenna |
| 12/14/1988 | EP0295003A2 Antenna |
| 12/13/1988 | US4791429 Multimode omniantenna with flush mount |
| 11/29/1988 | US4788554 Plated plastic injection molded horn for antenna |
| 11/29/1988 | CA1245760A1 Microstrip circuit temperature compensation |
| 11/24/1988 | DE3816443A1 Formbare duroplast-zusammensetzung A moldable thermoset-composition |
| 11/22/1988 | US4786911 Radio frequency transmission |
| 11/17/1988 | EP0291233A2 Multimode omni antenna with flush mount |
| 11/17/1988 | EP0290844A2 Directional antenna |
| 11/17/1988 | EP0290508A1 Orthogonal mode electromagnetic wave launcher. |
| 11/17/1988 | DE3714979A1 Antenna arrangement |
| 11/15/1988 | US4785266 Dielectric rod polarizer having wedge shape polarizing portions |
| 11/08/1988 | US4783665 Hybrid mode horn antennas |
| 11/08/1988 | US4783663 Unit modules for a high-frequency antenna and high-frequency antenna comprising such modules |
| 11/08/1988 | US4783661 Dual-band circularly polarised antenna with hemispherical coverage |
| 11/02/1988 | EP0289085A2 Phase control microstripline antenna |
| 11/02/1988 | EP0288497A1 Array beam position control using compound slots. |
| 11/02/1988 | EP0138907B1 Waveguide antenna |
| 11/01/1988 | US4782346 Finline antennas |
| 11/01/1988 | US4782345 Transponder antenna |
| 10/25/1988 | US4780695 Refractory leakage coaxial cable |
| 10/04/1988 | US4775866 Two-frequency slotted planar antenna |
| 10/04/1988 | CA1242796A1 Microwave plane antenna |
| 09/27/1988 | US4774520 Primary microwave source for a conical scanning antenna and an antenna containing it |
| 09/20/1988 | US4772891 Broadband dual polarized radiator for surface wave transmission line |
| 09/06/1988 | US4769655 Vehicle slot antenna with passive ground element |
| 08/24/1988 | EP0279050A1 Three resonator parasitically coupled microstrip antenna array element |
| 08/23/1988 | US4766440 Triple frequency U-slot microstrip antenna |
| 08/17/1988 | EP0278070A1 Circular microstrip vehicular rf antenna |
| 08/17/1988 | EP0278069A1 Near-isotropic low profile microstrip radiator especially suited for use as a mobile vehicle antenna |
| 08/16/1988 | US4764775 Multi-mode feed horn |
| 08/09/1988 | US4763130 Probe-fed slot antenna with coupling ring |
| 08/02/1988 | US4761654 Electromagnetically coupled microstrip antennas having feeding patches capacitively coupled to feedlines |
| 08/02/1988 | CA1240037A1 Microstrip space duplexed antenna |
| 08/02/1988 | CA1240036A1 Microstrip antenna having unipole antenna |
| 07/28/1988 | WO1988005609A1 Slot antenna in circular waveguide |
| 07/26/1988 | US4760404 Device and method for separating short-wavelength and long-wavelength signals |
| 07/26/1988 | US4760403 Polarized signal receiver probe provided with a bifurcated transmission line |
| 07/26/1988 | US4760400 Sandwich-wire antenna |
| 07/26/1988 | US4760362 Leaky coaxial cable providing inductive coupling by eliminating radiating gaps, and the method of making same |
| 07/19/1988 | US4758842 Horn antenna array phase matched over large bandwidths |
| 07/19/1988 | US4758841 Polarized signal receiver probe |
| 07/19/1988 | CA1239473A1 Microwave plane antenna |
| 07/19/1988 | CA1239472A1 Horn reflector antenna with absorber lined conical feed |
| 07/13/1988 | EP0274074A2 Feeding radiator for a communications antenna |
| 07/13/1988 | EP0273923A1 Combined uplink and downlink satellite antenna feed network |
| 07/12/1988 | US4757326 Box horn antenna with linearized aperture distribution in two polarizations |
| 07/12/1988 | US4757325 To amximize the gain-line product |
| 07/12/1988 | US4757324 Antenna array with hexagonal horns |
| 07/12/1988 | CA1239222A1 Grooved horn radiator with mode coupler |
| 07/12/1988 | CA1239221A1 Farfield/nearfield transmission/reception antenna |
| 07/05/1988 | US4755828 Polarized signal receiver waveguides and probe |
| 07/05/1988 | US4755827 Millimeter wavelength monolithic ferrite circulator/antenna device |
| 07/05/1988 | US4755821 Planar antenna with patch radiators |
| 06/29/1988 | EP0272752A2 Patch antenna |
| 06/28/1988 | CA1238714A1 Shaped beam antenna |
| 06/22/1988 | EP0271504A1 Horn antenna array phase matched over large bandwidths. |
| 06/15/1988 | EP0271458A2 Electromagnetically coupled printed-circuit antennas having patches or slots capacitively coupled to feedlines |
| 06/08/1988 | EP0270209A2 Dual-band circularly polarised antenna with hemispherical coverage |
| 06/07/1988 | CA1237809A1 Interleaved microstrip planar array |
| 06/01/1988 | EP0121568B1 Continuous ferrite aperture for electronic scanning antennas |
| 05/17/1988 | CA1236892A1 Polarized signal receiver probe |
| 05/10/1988 | US4743918 Antenna comprising a device for excitation of a waveguide in the circular mode |
| 05/10/1988 | US4743916 Method and apparatus for proportional RF radiation from surface wave transmission line |
| 05/10/1988 | US4743915 Four-horn radiating modules with integral power divider/supply network |
| 05/10/1988 | US4743725 Coaxial line microwave heating applicator with asymmetrical radiation pattern |
| 04/26/1988 | US4740795 Dual frequency antenna feeding with coincident phase centers |
| 04/26/1988 | CA1235781A1 Doppler radar velocity measurement apparatus |
| 04/26/1988 | CA1235752A1 Portable radio communication apparatus comprising an antenna member for a broad-band signal |
| 04/21/1988 | WO1988002934A1 Array beam position control using compound slots |
| 04/21/1988 | WO1988002933A1 Orthogonal mode electromagnetic wave launcher |
| 04/20/1988 | EP0264056A2 Vehicle antenna with shiftable gain patterns |
| 04/12/1988 | US4737789 Inductive antenna coupling for a surface acoustic wave transponder |
| 04/12/1988 | US4737741 Orthogonal mode electromagnetic wave launcher |
| 04/06/1988 | EP0262931A2 Planar antenna |
| 04/06/1988 | EP0262590A2 Devices and method for separating short-wavelength and long-wavelength signals |
| 04/05/1988 | US4735764 High vacuum |
| 03/30/1988 | EP0261762A1 Vehicle roof mounted slot antenna with separate AM and FM feeds |
| 03/30/1988 | EP0261121A1 A method for manufacturing a wave-guide section providing a continuous transition and a microwave antenna using this wave-guide section |
| 03/29/1988 | CA1234621A1 Crossover traveling wave feed |
| 03/22/1988 | US4733245 Cavity-backed slot antenna |
| 03/15/1988 | US4731616 Antenna horns |