Patents
More topics under "H01Q - Aerials" (214,315)
H01Q 1 - Details of, or arrangements associated with, aerials (75,694)
H01Q 11 - Electrically-long aerials having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements (4,834)
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)
H01Q 15 - Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices (7,888)
H01Q 17 - Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems (2,636)
H01Q 19 - Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic (10,176)
H01Q 21 - Aerial arrays or systems (25,127)
H01Q 23 - Aerials with active circuits or circuit elements integrated within them or attached to them (3,771)
H01Q 25 - Aerials or aerial systems providing at least two radiating patterns (4,128)
H01Q 3 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system (21,949)
H01Q 5 - Arrangements for simultaneous operation of aerials on two or more different wavebands (11,466)
H01Q 7 - Loop aerials with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop (7,833)
H01Q 9 - Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (23,053)
Patents for H01Q - Aerials (619)
10/1994
10/05/1994CN1093203A 天线 Antenna
01/1994
01/05/1994EP0383880B1 Antenna lamination technique
11/1992
11/11/1992EP0305486B1 Capacitance loaded helical monopole antenna
10/1992
10/27/1992US5159347 Micromagnetic circuit
08/1992
08/05/1992EP0288497B1 Array beam position control using compound slots
12/1991
12/27/1991EP0268635B1 Reflector antenna with a self-supported feed
12/04/1991EP0248886B1 High efficiency optical limited scan antenna
06/1991
06/19/1991EP0433255A2 Orthogonally polarized dual-band printed circuit antenna employing radiating elements capacitively coupled to feedlines
01/1991
01/08/1991US4983237 Antenna lamination technique
01/02/1991EP0404905A1 Improved feed waveguide for an array antenna
06/1990
06/28/1990WO1990007201A1 Improved feed waveguide for an array antenna
03/1990
03/08/1990WO1990002427A1 Antenna lamination technique
01/1990
01/23/1990US4896162 Antenna for receiving an electromagnetic signal
04/1989
04/25/1989US4825216 High efficiency optical limited scan antenna
11/1988
11/02/1988EP0288497A1 Array beam position control using compound slots.
09/1988
09/22/1988WO1988007266A1 Capacitance loaded helical monopole antenna
06/1988
06/01/1988EP0268635A1 Reflector antenna with a self-supported feed.
04/1988
04/21/1988WO1988002934A1 Array beam position control using compound slots
06/1987
06/18/1987WO1987003746A1 High efficiency optical limited scan antenna
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