Communications: radio wave antennas – Antennas – Wave guide type
Patent
1981-06-02
1983-01-18
Moore, David K.
Communications: radio wave antennas
Antennas
Wave guide type
343 18B, H01Q 1914
Patent
active
043694489
ABSTRACT:
An antenna, such as Cassegrain or parabolic antenna, intended for use in the microwave or millimeter wavebands having improved wide angle radiation characteristics. At least one edge portion, in first embodiments, of a supporting post structure which supports a primary radiator or subreflector is modified to randomly scatter waves so that the field strength of scattered waves due to the presence of the supporting post is decreased.
REFERENCES:
patent: 3296685 (1967-01-01), Suliteanu
patent: 3396396 (1968-08-01), Charlton et al.
patent: 3530469 (1970-09-01), Dailey et al.
patent: 4148039 (1979-04-01), Lunden
patent: 4189731 (1980-02-01), Rope et al.
Matsunaka Naoto
Satoh Hideo
Kokusai Denshin Denwa Co. Ltd.
Mitsubishi Denki & Kabushiki Kaisha
Moore David K.
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