Microwave frequency phase modulator

Details Microwave frequency phase modulator Microwave frequency phase modulator

1975-07-02

1977-01-18

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

With impedance matching

332 23R, 333 29, 333 11, 333 7D, H01P 118, H01P 138, H03C 702, H03C 322

Patent

active

040042553

ABSTRACT:
Phase modulator enabling the ratio of parasitic waves to be reduced and the precision on the phase shift to be increased, comprising two microwave frequency diodes connected to voltage supplies such that the diodes are each rendered conductive or blocked in phase opposition with one another, the two diodes being respectively arranged in two paths having different electrical lengths for ensuring the phase shift, and two or four circulators enabling the main waves to issue at the output of the modulator and the parasitic waves to be dissipated in matching loads.

REFERENCES:
patent: 3136950 (1964-06-01), Mackey
patent: 3349342 (1967-10-01), Garver
patent: 3506930 (1970-04-01), Gantick
patent: 3656069 (1972-04-01), Beccone et al.
patent: 3798573 (1974-03-01), Seidel

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