Abstract: The present invention relates to a mechanical compensating device for a waveguide (1). More precisely, the present invention provides a technology for ensuring phase stability in a waveguide (1) subject to expansions and contractions owing to temperature changes. To do this, actuators, which may consist of pairs of prongs (8-9, 10-11), connected to longitudinal ribs (2, 3) cut in the body of the waveguide (1) and integral therewith, cause, because of a large difference between the respective coefficients of thermal expansion of the waveguide (1) and of the actuators, a rotation of the longitudinal ribs (2, 3) about themselves, deforming the short sides (4, 5) of the waveguide (1) when said waveguide (1) expands or contracts according to the changes in temperature.

Abstract: The present invention relates to a mechanical compensating device for a waveguide (1). More precisely, the present invention provides a technology for ensuring phase stability in a waveguide (1) subject to expansions and contractions owing to temperature changes. To do this, actuators, which may consist of pairs of prongs (8-9, 10-11), connected to longitudinal ribs (2, 3) cut in the body of the waveguide (1) and integral therewith, cause, because of a large difference between the respective coefficients of thermal expansion of the waveguide (1) and of the actuators, a rotation of the longitudinal ribs (2, 3) about themselves, deforming the short sides (4, 5) of the waveguide (1) when said waveguide (1) expands or contracts according to the changes in temperature.

Abstract: A device comprises a microwave resonator having at least one cavity having a predefined resonant frequency. The device also comprises a temperature compensation system that is made from a material having a coefficient of thermal expansion that is very low compared to that of the material from which the cavity is made and includes a structure for counteracting the effects of temperature variations on the resonator so that the resonant frequency of the cavity remains within a predetermined range. The device further comprises a temperature compensation adjustment device adapted to modify the volume of the cavity to adjust the value of the resonant frequency to a predefined value.

Abstract: A device comprises a microwave resonator having at least one cavity having a predefined resonant frequency. The device also comprises a temperature compensation system that is made from a material having a coefficient of thermal expansion that is very low compared to that of the material from which the cavity is made and includes a structure for counteracting the effects of temperature variations on the resonator so that the resonant frequency of the cavity remains within a predetermined range. The device further comprises a temperature compensation adjustment device adapted to modify the volume of the cavity to adjust the value of the resonant frequency to a predefined value.