Communications: radio wave antennas – Antennas – Antenna components
Patent
1991-07-23
1993-04-13
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Antenna components
343837, 343912, H01Q 1700
Patent
active
052027015
ABSTRACT:
An antenna system includes a reflector grid which reflects signals which are within the operative frequency range of the antenna and passes received signals of higher frequency. An absorber is placed proximate to the reflector grid to absorb signals which are passed by the grid. A second reflector located proximate to the absorber reflects signals back through the absorber such that signals reflected by the antenna system are twice attenuated by the absorber.
REFERENCES:
patent: 3771160 (1973-11-01), Laverick
patent: 4284992 (1981-08-01), Gans
patent: 4381510 (1983-04-01), Wren
patent: 4599623 (1986-07-01), Havkin et al.
patent: 4743919 (1988-05-01), Chang et al.
patent: 4786915 (1988-11-01), Cartwright et al.
Grumman Aerospace Corporation
Ho Tan
Ritchie William B.
Wimer Michael C.
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