| Patents for H01Q 21 - Aerial arrays or systems (25,127) |
|---|
| 11/08/1988 | US4783666 Protective shield for an antenna array |
| 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 | CN87205268U Microstrip antenna array |
| 11/01/1988 | USH548 Group orthogonal arrays for elimination of multiple-time-around echos in radars |
| 10/25/1988 | US4780723 Microstrip antenna compressed feed |
| 10/19/1988 | CN88211319U Three-stub type vhf/uhf mixer |
| 10/18/1988 | US4777718 Method of forming and connecting a resistive layer on a pc board |
| 10/12/1988 | EP0286526A1 Self-protected transportable planar antenna array |
| 10/12/1988 | EP0285743A2 Linear array of half wave dipoles with quarter wave dipoles at the ends |
| 10/12/1988 | EP0104173B1 An electronically scanned antenna system having a linear array of yagi antennas |
| 10/11/1988 | US4777490 Monolithic antenna with integral pin diode tuning |
| 10/11/1988 | US4776086 Method and apparatus for hyperthermia treatment |
| 10/06/1988 | WO1988007786A2 Equal power amplifier system for active phase array antenna and method of arranging same |
| 10/06/1988 | WO1988007770A1 Plural level beam-forming network |
| 10/05/1988 | EP0285303A1 Broadcasting wave reception antenna |
| 10/04/1988 | US4775866 Two-frequency slotted planar antenna |
| 10/04/1988 | CA1242796A1 Microwave plane antenna |
| 09/22/1988 | WO1988007269A1 Omnidirectional antenna system |
| 09/21/1988 | CN88100814A 天线 Antenna |
| 09/20/1988 | US4772890 Multi-band planar antenna array |
| 09/13/1988 | US4771330 Wire bonds and electrical contacts of an integrated circuit device |
| 09/13/1988 | US4771294 Modular interface for monolithic millimeter wave antenna array |
| 09/07/1988 | EP0280799A1 Antenna system for wide bandwidth signals |
| 08/31/1988 | CN88212232U Twin-layer uhf receiving antenna compatible for vhf |
| 08/25/1988 | WO1988006351A1 A transmit-receive means for phased-array active antenna system |
| 08/23/1988 | US4766444 Conformal cavity-less interferometer array |
| 08/18/1988 | DE3703812A1 Antenna arrangement |
| 08/16/1988 | US4764771 Antenna feed network employing over-coupled branch line couplers |
| 08/10/1988 | EP0277207A1 Flat phased array antenna |
| 08/10/1988 | CN87205789U Coaxial cross nondirectional antenna |
| 08/09/1988 | US4763131 Log-periodic monopole antenna array |
| 08/09/1988 | US4763130 Probe-fed slot antenna with coupling ring |
| 08/03/1988 | EP0276248A1 Radar transceiver employing circularly polarized waveforms |
| 08/02/1988 | US4761827 Polarity switch for satellite television receiver |
| 08/02/1988 | US4761654 Electromagnetically coupled microstrip antennas having feeding patches capacitively coupled to feedlines |
| 08/02/1988 | US4761653 Microstrip antenna |
| 08/02/1988 | CA1240038A1 Dipole antenna system with overhead coverage having equidirectional-linear polarization |
| 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 |
| 07/27/1988 | EP0275303A1 Low sidelobe solid state phased array antenna apparatus. |
| 07/26/1988 | US4760394 Antenna for transmitting and/or receiving radio waves by way of electromagnetic induction |
| 07/21/1988 | DE3642735C1 Antenna array consisting of two log-periodic individual dipole antennas |
| 07/19/1988 | US4758843 Printed, low sidelobe, monopulse array antenna |
| 07/19/1988 | US4758842 Horn antenna array phase matched over large bandwidths |
| 07/19/1988 | CA1239473A1 Microwave plane antenna |
| 07/13/1988 | EP0273923A1 Combined uplink and downlink satellite antenna feed network |
| 07/12/1988 | US4757324 Antenna array with hexagonal horns |
| 07/05/1988 | US4755829 System for radiating coherent microwave radiation at predetermined frequency |
| 07/05/1988 | US4755821 Planar antenna with patch radiators |
| 06/29/1988 | CN87201567U Picture-frame tv receiving antenna |
| 06/28/1988 | CA1238714A1 Shaped beam antenna |
| 06/22/1988 | EP0271685A1 Antenna made of two or more radiating rods one upon the other |
| 06/22/1988 | EP0271517A1 Array antenna. |
| 06/22/1988 | EP0271504A1 Horn antenna array phase matched over large bandwidths. |
| 06/21/1988 | US4752781 Side-locking airborne radar (SLAR) antenna |
| 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 | US4750000 Ultra-broadband impedance matched electrically small self-complementary signal radiating structures with impedance-inverting feed for complementary pairs using thin wire elements |
| 06/07/1988 | US4749997 Modular antenna array |
| 06/07/1988 | CA1237809A1 Interleaved microstrip planar array |
| 06/07/1988 | CA1237808A1 Crossed-drooping dipole antenna |
| 06/02/1988 | WO1988004109A1 Monopulse antenna with improved sidelobe suppression |
| 06/01/1988 | EP0121568B1 Continuous ferrite aperture for electronic scanning antennas |
| 06/01/1988 | DE3701518A1 Radio antenna having two or more than two radiator sections which are arranged one above the other and are formed by rods |
| 05/24/1988 | US4746927 VOR antenna design |
| 05/24/1988 | US4746923 For achieving frequency/temperature compensation |
| 05/24/1988 | US4746867 For detection of objects buried in the ground |
| 05/19/1988 | WO1988003712A1 Microwave antenna array waveguide assembly |
| 05/11/1988 | EP0266925A1 Antenna |
| 05/11/1988 | EP0266567A1 Method for the surveillance and control of an antenna selector, and an antenna selector for carrying out the method |
| 05/10/1988 | US4743915 Four-horn radiating modules with integral power divider/supply network |
| 05/10/1988 | US4743911 Constant beamwidth antenna |
| 05/10/1988 | US4743906 Time domain radio transmission system |
| 05/03/1988 | US4742567 Automobile antenna system |
| 05/03/1988 | US4742355 Serpentine feeds and method of making same |
| 05/03/1988 | US4742354 Radar transceiver employing circularly polarized waveforms |
| 05/03/1988 | US4742314 Solid state millimeter wave power combiner |
| 04/27/1988 | CN87207286U Cross-compatible all-channel television antenna with telescopic reflector |
| 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 |
| 04/20/1988 | EP0264170A1 An antenna |
| 04/20/1988 | EP0264056A2 Vehicle antenna with shiftable gain patterns |
| 04/19/1988 | US4739332 Fanbeam inversion radar |
| 04/12/1988 | US4737793 Radio frequency antenna with controllably variable dual orthogonal polarization |
| 04/06/1988 | EP0262931A2 Planar antenna |
| 04/06/1988 | CN87107605A Auto-control method and auto-controller of common tv antenna system |
| 03/29/1988 | US4734703 Three-wave antenna for vehicle |
| 03/29/1988 | CA1234621A1 Crossover traveling wave feed |
| 03/08/1988 | US4730193 Microstrip antenna bulk load |
| 03/02/1988 | EP0257881A2 Slotted waveguide antenna and array |
| 03/01/1988 | US4728962 Microwave plane antenna |
| 03/01/1988 | US4728897 Microwave reflection survey technique for determining depth and orientation of buried objects |
| 02/25/1988 | WO1988001444A1 Flat phased array antenna |
| 02/23/1988 | CA1233246A1 Side-looking airborne radar (slar) antenna |
| 02/18/1988 | DE3627597A1 Conformal antenna for missiles |
| 02/18/1988 | DE3627596A1 Circular array antenna arrangement |