Communications: radio wave antennas – Antennas – With polarization filter or converter
Patent
1987-09-18
1989-02-21
Gensler, Paul
Communications: radio wave antennas
Antennas
With polarization filter or converter
333 21A, 343840, H01Q 1900, H01Q 1912
Patent
active
048069450
ABSTRACT:
A receiving head end comprising only a single movable component, a front depolarizer (POM), for selecting conjugate polarized microwaves. The addition of a fixed depolarizer (POF) provides two aerial versions, one for the circular type of polarization and the other for the rectilinear type of polarization. The whole is fitted together for forming an aerial for the "public at large", simple to operate and whose shadow cast on the parabolic reflector is minimal.
REFERENCES:
patent: 3720947 (1973-03-01), Meyer et al.
patent: 4528528 (1985-07-01), Augustin
patent: 4613836 (1986-09-01), Evans
patent: 4672388 (1987-06-01), Grim
Cormier Jean-Pierre M.
Horvat Philippe N.
Gensler Paul
Kraus Robert J.
U.S. Philips Corp.
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