Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1997-10-30
1998-06-30
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Spiral or helical type
343840, H01Q 1917, H01Q 2124
Patent
active
057740950
ABSTRACT:
A helical antenna system for receiving simultaneous signals with different polarizations, with the aid of helical feeders and without gain degradation. Two or more helical feeders are provided for each polarization direction.
REFERENCES:
patent: 4001834 (1977-01-01), Smith
Patent Abstracts of Japan, vol. 3, No. 60 (E-112) Mar. 1979, JP 54038745 (Tanaka).
Patent Abstracts of Japan, vol. 13, No. 230 (E-764), May 1989), JP 10037107. (Ota).
Emanuel Peter M.
Thomson Multimedia S.A.
Tripoli Joseph S.
Wein Frederick A.
Wimer Michael C.
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