RESONANT MICROWAVE UNIT Russian patent published in 2005 - IPC

FIELD: microwave equipment, applicable in constructions of resonant microwave units based on cylindrical resonators with H₁₁₁-type of oscillations conjugate to rectangular waveguides, in particular, centimetric wave band in atomic-beam frequency standards.

SUBSTANCE: the resonant microwave unit has a casing with a cylindrical cavity closed from two sides by end face walls forming a resonator cavity with H₁₁₁-type of oscillations, with two components of coupling with the outer microwave circuits. The components of coupling with the outer microwave circuits are made in the form of slit-line coupling openings. The coupling openings are located on the opposite flat lateral sides of the casing, parallel with each other and with the longitudinal axis of the resonator cavity, and designed for connection of the outer rectangular waveguides. The longitudinal axes of the coupling openings lie in the first plane passing through the longitudinal axis of the resonator cavity perpendicularly to these lateral sides, and their centers - on the intersection of the mentioned first plane with the second plane coinciding with the plane of the transverse symmetry of the resonator cavity. At least one adjusting electroconducting rod is positioned in one of the end face walls in parallel with the longitudinal axis of the resonator cavity, it is used for varying the volume of the resonator cavity in the process of adjustment of the resonant frequency by introduction inside the resonator cavity, located within the circular zone with a diameter equal D/4, where D - the diameter of the resonator cavity, and the center positioned in the intersection of the mentioned first plane with the plane of the end face wall at distance L from the longitudinal axis of the resonator cavity, where L=3D/8.

EFFECT: provided smooth adjustment of the resonant frequency and simplicity of conjugation with the outer rectangular waveguides.

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