Horn antenna with rotating waveguide and polarization lens means

Details Horn antenna with rotating waveguide and polarization lens means Horn antenna with rotating waveguide and polarization lens means

1978-01-05

1979-12-11

Moore, David K.

Communications: radio wave antennas

Antennas

With polarization filter or converter

343755, 343772, 343781R, 343909, H01Q 1302

Patent

active

041785746

ABSTRACT:
Disclosed is an antenna feed system for use in satellite communication systems and the like, comprising a horn with a rectangular aperture and a waveguide connected thereto. The assembly formed by the waveguide and horn is constructed from two parts secured together so that the junction lies in the longitudinal symmetry plane parallel to the electric field of the TE.sub.01 mode and is mounted for rotation about the longitudinal axis of the waveguide. The feed system further comprises a polarization converter mounted in front of the horn for rotation about the extention of the longitudinal axis of the waveguide. The converter is constructed from a plurality of layers of supporting material each provided with a conductor which forms in one direction a mainly inductive load and in a direction which is perpendicular thereto a mainly capacitive load.

REFERENCES:
patent: 2978702 (1961-04-01), Pakan
patent: 3394375 (1968-07-01), Vice et al.
patent: 3771160 (1973-11-01), Laverick
Gandy, C., "A Circularly Polarized Aerial for Satellite Reception", British Broadcasting Corp., BBC RD 1976/21, Aug. 1976, pp. 1-8.
Young et al., "Meander-Line Polarizer", IEEE Transactions on Antenna and Propagation, May 1973, pp. 376-378.

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