High power waveguide filter

Details High power waveguide filter High power waveguide filter

1979-03-26

1981-04-07

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333212, 333229, H01P 1207

Patent

active

042609674

ABSTRACT:
A waveguide filter capable of operating at high power levels while retaining substantially constant filter characteristics over a wide temperature range. Two cylindrical body portions of a metal having a low temperature coefficient expansion are sandwiched between three highly thermally conducting iris members, each of which has an aperture of predetermined dimensions for determining the wave modes which propagate through the filter. Each iris member extends beyond the adjacent bodied portion to heat dissipating means which may either be cooling fins through which air is circulated or cooling coils through which a cooling fluid is circulated. Because the proportion of the total filter length occupied by the iris members is much smaller than that of the body portion, very little elongation takes place as the filter cavity is heated thus resulting in temperature-stable filter characteristics.

REFERENCES:
patent: 2996690 (1961-08-01), St. Clair
patent: 3063030 (1962-11-01), Manahan et al.
patent: 3697898 (1972-10-01), Blachier et al.
patent: 4156860 (1979-05-01), Atia et al.

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