Ultra high-frequency circuit with resonant cavity equipped with

Details Ultra high-frequency circuit with resonant cavity equipped with Ultra high-frequency circuit with resonant cavity equipped with

1979-04-30

1981-02-03

Gensler, Paul L.

Wave transmission lines and networks

Resonators

Coaxial or shielded

330287, 331102, 331107P, 331107DP, 333231, H01P 704, H01P 706

Patent

active

042491495

ABSTRACT:
A circuit capable of providing the negative resistance heart of oscillators or amplifiers in the 5-20 Gc/s frequency band, comprising a central resonant cavity and one or several peripheral exciting chambers, each containing a push-pull arrangement of two diodes for example three pairs of diodes in chambers arranged at 120.degree. from one another on a circle concentric to the central cavity. The diodes are located at the bottoms of cylindrical exciting chambers communicating with the central chamber through holes situated at the center of each push-pull arrangement. Each pair of diodes is maintained and polarized by a metallic bar which plays, with the walls of the exciting chamber, the role of an impedance transformer between the diodes and the central cavity. The metallic bar is maintained by a polarization rod penetrating the chamber through an insulating passage.

REFERENCES:
patent: 3401355 (1968-09-01), Kafitz
patent: 4056784 (1977-11-01), Cohn
patent: 4066988 (1978-01-01), Karp

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