Fast electronic tuning of high power circuits for VHF-UHF power

Details Fast electronic tuning of high power circuits for VHF-UHF power Fast electronic tuning of high power circuits for VHF-UHF power

1974-08-15

1976-07-13

Kominski, John

Amplifiers

With distributed parameter-type coupling means

Waveguide, cavity, or concentric line resonator

331101, 331179, H03F 360

Patent

active

039696812

ABSTRACT:
Two embodiments are disclosed of a system for the fast tuning of high power amplifier circuits. In one embodiment a strip line resonating circuit is selectively tuned by the actuation of selected ones of a plurality of PIN diodes which interconnect a relatively high impedance of strip line circuit with a strip line circuit having a lower characteristic impedance. In the second embodiment a coaxial cavity is terminated in an output transmission line. The cavity and the output transmission line are separated by an array of shorting stubs, each of which is selectively energizable by a suitably located PIN diode.

REFERENCES:
patent: 2681953 (1954-06-01), Bradburd
patent: 3414833 (1968-12-01), Tolliver
patent: 3417351 (1968-12-01), Di Piazza
patent: 3614665 (1971-10-01), Weller
Microwaves, "Digital Tuning Imposes Will on Cavity Oscillators" July 1969.

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