Dielectric spacing means for microwave sheet metal cavities

Details Dielectric spacing means for microwave sheet metal cavities Dielectric spacing means for microwave sheet metal cavities

1993-10-29

1995-02-28

Ham, Seungsook

Wave transmission lines and networks

Resonators

Cavity resonator

333136, 333231, 330295, H01P 706, H03F 368

Patent

active

053941241

ABSTRACT:
A microwave cavity closure structure encloses an upper splitter cavity bounded at its top and bottom by, respectively, a rigid metal plate and a flexible sheet metal dish and (b) a lower combiner cavity bounded at its top and bottom by another such dish and another lower such plate. Each such cavity has a central region occupied by a raised circular boss, and the lower plate bounding the bottom cavity mounts, outward of the central boss, two concentric annular sheet metal rings each having a flat top and peripheral flanges extending from the margins of that top down into annular grooves in the lower plate. One or more rings of dielectric posts are disposed in each cavity radially between the central boss therein and the cavity periphery to vertically space at the ring's location the plate and dish of the cavity by a distance determined by the posts, while concurrently permitting the dish to be flexed in the cavity's central region for cavity tuning purposes. Each interior of each annular ring in the combiner cavity is filled with V-shaped segments of metal coil stock ribbon which space apart the top portion of the ring and the underlying portion of the lower plate by a distance determined by those segments.

REFERENCES:
patent: 4724400 (1988-02-01), Luettgenau
patent: 5032798 (1991-07-01), Myer
patent: 5159290 (1992-10-01), Bartley-Myer

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