Rotatable polarization duplexer

Details Rotatable polarization duplexer Rotatable polarization duplexer

1978-05-09

1980-09-09

Gensler, Paul L.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333135, 333 21A, 333209, 343786, H01P 520, H01Q 500

Patent

active

042220173

ABSTRACT:
The cavity of a rotatable cylindrical waveguide supports the TE.sub.11 mode of propagation of a received wave and a transmitted wave. The proximal and distal ends of the cylindrical waveguide are adjacent and axially aligned with one end of a rectangular flexible waveguide and a fixedly disposed horn aperture, respectively. The transmitted wave propagates in the TE.sub.10 mode through the rectangular waveguide to the cylindrical waveguide. Additionally, the rectangular waveguide prevents propagation therethrough of the received wave. The cylindrical waveguide couples the transmitted wave to the horn. Rotation of the end of the rectangular waveguide rotates the polarization of the transmitted wave. A pair of slots in the cylindrical waveguide form passageways between the cavity thereof and a pair of filters that pass the received wave whereby the received wave propagates through the filters. Rotation of the cylindrical waveguide rotates the polarization of the received wave within the filters relative to the polarization of the received wave within the cylindrical waveguide.

REFERENCES:
patent: 2961618 (1960-11-01), Ohm
patent: 3287730 (1966-11-01), Kerr
patent: 3731235 (1973-05-01), Ditullio et al.
patent: 3731236 (1973-05-01), Ditullio et al.
patent: 3938157 (1976-02-01), Brickey

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