Resonant cavity device converting transverse dimensional...

Details Resonant cavity device converting transverse dimensional... Resonant cavity device converting transverse dimensional...

2005-11-01

2005-11-01

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Resonators

Cavity resonator

C333S234000

Reexamination Certificate

active

06960969

ABSTRACT:
A resonant cavity device comprises a waveguide body having a lateral wall extending in a longitudinal direction, having a first coefficient of thermal expansion, and delimiting a resonant cavity in conjunction with opposite first and second end walls. The first end wall has a second coefficient of thermal expansion lower than the first coefficient and has an internal face fastened to a first assembly comprising at least one main plate having a third coefficient of thermal expansion lower than the first coefficient and dimensions in a plane perpendicular to the longitudinal direction less than but substantially equal to those of the cavity. An intermediate member has a fourth coefficient of thermal expansion lower than the third coefficient and an end portion fixed to the main plate which, in the event of a temperature variation, converts a dimensional variation in a direction perpendicular to the longitudinal direction into a dimensional variation in the longitudinal direction inducing longitudinal translation of the main plate inside the cavity.

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patent: 5905419 (1999-05-01), Lukkarila
patent: 5977849 (1999-11-01), Jordan et al.
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patent: 41 13 302 (1992-10-01), None
patent: 0 939 450 (1999-09-01), None

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