Microwave polarization control network

Details Microwave polarization control network Microwave polarization control network

1986-06-05

1987-12-01

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333137, 333 21A, 343756, H01P 110, H01P 1161, H01P 117

Patent

active

047107340

ABSTRACT:
This invention relates to two embodiments of microwave polarization control networks. The first produces two sets of orthogonal linear polarizations and constitutes a two position transfer switch and a directional coupler having two ports alternating as input and isolated ports and two ports alternating as through and coupled output ports. The transfer switch is connected to switch an input to one or the other of the two ports alternating as input and isolated ports and couple the other to a termination. An ortho-mode transducer junction, having two input ports, has one input port coupled directly to one of the output ports of the directional coupler and the other input port connected in series through a 0.degree./180.degree. phase shifter to the other output port of the directional coupler. A dual mode waveguide is employed for transmitting a variable polarization output from the ortho-mode junction. In another embodiment, the transfer switch is not employed, and a 90.degree. differential phase shifter is incorporated in the dual mode waveguide whereby either linear or circular polarization may be obtained.

REFERENCES:
patent: 4119967 (1978-10-01), Johnson et al.
patent: 4231000 (1980-10-01), Schuegraf

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