Triggered-plasma microwave switch and method

Details Triggered-plasma microwave switch and method Triggered-plasma microwave switch and method

1996-03-08

1997-09-02

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

331 82, 333101, 333253, 333258, 333 99PL, H01P 1185, H01P 114, H01P 128

Patent

active

056636946

ABSTRACT:
A microwave switch selectively directs a microwave signal along first and second signal paths. The switch includes a microwave transmission member, a microwave chamber formed by the transmission member for containing an ionizable gas, input and output ports formed by the transmission member to communicate with the microwave chamber and a triggered plasma generator which is configured to generate, in response to a voltage trigger signal, a trigger electron density N.sub.t in the gas. The microwave signal increases the trigger electron density N.sub.t to a reflective electron density N.sub.r. Consequently, the microwave signal is reflected along a first path from the input port when the trigger electron density N.sub.t is present and is directed along a second path to the output port when the trigger electron density N.sub.t is absent. A plurality of these microwave switches is arranged to form a tunable microwave short.

REFERENCES:
patent: 3023380 (1962-02-01), Hill
patent: 3208068 (1965-09-01), Hoffman
patent: 3281719 (1966-10-01), Goldberg
patent: 3611008 (1971-10-01), Anderson et al.
patent: 3621481 (1971-11-01), Perreault
patent: 3903489 (1975-09-01), Schubert
patent: 4450419 (1984-05-01), Schwarzmann
patent: 4843358 (1989-06-01), Meise et al.

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