Importance

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Abstract

A coaxial microwave device, such as a microwave switching device, for example, having improved thermal and power handling characteristics. At least one thermally conductive short-circuit element is located between inner (input and output) and outer conductors of the microwave coaxial or switching device. Consequently, heat losses generated in the inner conductors are conductively channeled away from heat sensitive materials. Typically, quarter-wavelength elements provide a thermal path to reduce heat buildup, thus enabling the microwave coaxial device or switching device to operate at higher RF power levels without overstressing components or materials. However, short circuit elements having element lengths other than one-quarter-wavelength may be employed to offset mismatches in a transmission line, for example. Furthermore, the short circuit elements may be used singularly or in pairs to provide for improved thermal and power handling characteristics in the devices in which they are used.

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First Claim