Wide band cryogenic ultra-high vacuum microwave absorber

Details Wide band cryogenic ultra-high vacuum microwave absorber Wide band cryogenic ultra-high vacuum microwave absorber

1990-05-11

1992-05-12

LaRoche, Eugene R.

Wave transmission lines and networks

Dissipating terminations for long lines

Fluid-cooling

333 81B, H01P 126

Patent

active

051131609

ABSTRACT:
An absorber wave guide assembly for absorbing higher order modes of microwave energy under cryogenic ultra-high vacuum conditions, that absorbs wide-band multi-mode energy. The absorber is of a special triangular shape, made from flat tiles of silicon carbide and aluminum nitride. The leading sharp end of the absorber is located in a corner of the wave guide and tapers to a larger cross-sectional area whose center is located approximately in the center of the wave guide. The absorber is relatively short, being of less height than the maximum width of the wave guide.

REFERENCES:
patent: 2837720 (1958-06-01), Saltzman et al.
patent: 2908875 (1959-10-01), Blatt et al.
patent: 3088082 (1963-04-01), Petrilla et al .
patent: 3904993 (1975-09-01), James
patent: 4760312 (1988-07-01), Watanabe et al.

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