Wave transmission lines and networks – Long line elements and components – Waveguide elements and components
Patent
1994-08-08
1995-11-28
Gensler, Paul
Wave transmission lines and networks
Long line elements and components
Waveguide elements and components
333 34, H01P 108
Patent
active
054711827
ABSTRACT:
A broad passband pressure barrier arrangement is provided for insertion in circular waveguide between a source and a receiver of radio frequency (RF) energy with a spatially circumferential electric field characteristic of the TE.sub.01 mode. At least three abutting cylindrical barrier regions are coaxially aligned a arranged symmetrically in mirror image fashion about a radial plane of the circular waveguide. The cylindrical barrier regions include: at least one solid cylindrical plug region sealed in a cross-section of the circular waveguide and having a longitudinal thickness sufficient to withstand a predetermined pressure load, and at least one solid cylindrical tuning region having a radius less than that of the circular waveguide and further having a longitudinal thickness. Each of the cylindrical barrier regions are defined by a characteristic impedance at opposing end faces thereof and a by characteristic impedance between the opposing end faces. A region-by-region impedance analysis process begins with an end face of the arrangement that is furthest from the source and is completed with an end face of the arrangement that is nearest the source. The radius of the tuning region(s) and the longitudinal thicknesses of the plug and tuning regions are optimized across the passband of interest.
REFERENCES:
patent: 3001160 (1961-09-01), Trousdale
patent: 3594667 (1971-07-01), Mann
patent: 4556854 (1985-12-01), Hiramatsu
Floyd Thomas R.
Josypenko Michael J.
Rivera David F.
Gensler Paul
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
The United States of America as represented by the Secretary of
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