Thermal compensation arrangement for microwave filter

Details Thermal compensation arrangement for microwave filter Thermal compensation arrangement for microwave filter

H - Electricity

01

P

H01P 1/30 (2006.01) H01P 1/207 (2006.01) H01P 1/208 (2006.01)

Patent

CA 2342063

This invention discloses an improved thermal compensation arrangement for a microwave filter of the type comprising at least one cavity defined by a metal side wall having a low coefficient of thermal expansion, such as invar, and lightweight metal end walls, such as aluminium, having good thermal and electrical conductivity, but a high coefficient of thermal expansion. The present invention comprises a characteristic arrangement of annular grooves and slots in the end walls that mechanically isolate the end walls from the side wall fixed thereto, to avoid distortion of the cavity with changes in temperature.

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