Three-access polarization and frequency duplexing device

Details Three-access polarization and frequency duplexing device Three-access polarization and frequency duplexing device

1987-01-28

1989-06-06

Laroche, Eugene R.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333 21A, H03H 746, H01P 1213

Patent

active

048375314

ABSTRACT:
A three-access polarization and frequency duplexing device has in series a common circular waveguide for passing two polarizations of a wave within a low-frequency band and one polarizations of a wave within a high-frequency band, a first access waveguide which opens into the common waveguide and a transition, a secondary rectangular waveguide. The narrow sides of the secondary waveguide are parallel to one polarization of the low-frequency band and the broad sides are parallel to the polarization of the high-frequency band. A second access waveguide is connected to the secondary waveguide at right angles and coupled by a resonant slot. A short-circuit plate performs a short-circuiting function for the high-frequency portion of the wave of the high-frequency band aligned with the second access waveguide. The free end of the secondary waveguide being forms a third access waveguide. The first access waveguide has a filter for selecting a polarization of the wave from the low-frequency band. The second access waveguide is at right angles to the broad side of the secondary guide.

REFERENCES:
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patent: 3566309 (1971-02-01), Ajioka
patent: 3924205 (1975-12-01), Hansen et al.
patent: 4047128 (1977-09-01), Morz
patent: 4410866 (1983-10-01), Bui-Hai
patent: 4491810 (1985-01-01), Saad
patent: 4546471 (1985-10-01), Bui-Hai
patent: 4622524 (1986-11-01), Morz

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