US 11,239,540 B2Granted

Irregular-shaped triple-mode cavity resonance structure and filter with the resonance structure

AssigneeHongkong Fingu Development Company Limited

InventorQingnan Meng

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Abstract

The disclosure discloses an irregular-shaped cavity multi-mode resonance structure and a filter with the resonance structure. The irregular-shaped cavity multi-mode resonance structure includes a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame; at least one end face of the cavity is concave or convex, and at least one end face of the dielectric resonance block is convex or concave, the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod; one end or any end of the cube-like dielectric resonance block is respectively connected with the dielectric support frame; the dielectric support frame is connected with an inner wall of the cavity; and the dielectric resonance block forms triple-mode resonance in three directions along the X, Y and Z axes of the cavity.

Claims44

Dependent claims

wherein the cavity is of a cube-like shape, at least one end face of the cavity is concave, the dielectric resonance block is of a cube-like shape, at least one end face of the dielectric resonance block is convex,
the dielectric support frame is respectively connected with the dielectric resonance block and an inner wall of the cavity, the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod, and a dielectric constant of the dielectric support frame is smaller than a dielectric constant of the dielectric resonance block;
a ratio K of a size of a single side of the inner wall of the cavity to a size of a corresponding single side of the dielectric resonance block meets:
transition point 1≤K≤transition point 2, a Q value of a higher-order mode, adjacent to a base mode, of the triple-mode dielectric resonance structure is transited into a Q value of the base mode of the triple-mode dielectric resonance structure, a base mode resonance frequency after transition is equal to a base mode resonance frequency prior to transition, a Q value of the base mode after transition is greater than a Q value of the base mode prior to transition, and a Q value of the higher-order mode, adjacent to the base mode, after transition is smaller than a Q value of the higher-order mode, adjacent to the base mode, prior to transition;
the triple-mode dielectric resonance structure is internally provided with a coupling structure for changing an orthogonal property of a degenerate triple-mode electromagnetic field in the cavity;
and
the triple-mode dielectric resonance structure is internally provided with a frequency tuning device for changing a resonance frequency of the degenerate triple-mode in the cavity.

4 more elements

An irregular-shaped triple-mode cavity resonance structure, comprising a cavity and a cover plate, wherein the cavity is internally provided with a dielectric resonance block and a dielectric support frame, wherein the cavity is, of a cube-like shape, at least one end face of the cavity is convex, the dielectric resonance block is of a cube-like shape, at least one end face of the dielectric resonance block is concave, the dielectric support frame is respectively connected with the dielectric resonance block and an inner wall of the cavity, the dielectric resonance block and the dielectric support frame form a triple-mode dielectric resonance rod, and a dielectric constant of the dielectric support frame is smaller than a dielectric constant of the dielectric resonance block;

a ratio K of a size of a single side of the inner wall of the cavity to a size of a corresponding single side of the dielectric resonance block meets:
transition point 1≤K≤transition point 2, a Q value of a higher-order mode, adjacent to a base mode, of the triple-mode dielectric resonance structure is transited into a Q value of the base mode of the triple-mode dielectric resonance structure, a base mode resonance frequency after transition is equal to a base mode resonance frequency prior to transition, a Q value of the base mode after transition is greater than a Q value of the base mode prior to transition, and a value of the higher-order mode, adjacent to the base mode, after transition is smaller than a Q value of the higher-order mode, adjacent to the base mode, prior to transition;
the triple-mode dielectric resonance structure is internally provided with a coupling structure for changing an orthogonal property of a degenerate triple-mode electromagnetic field in the cavity;
and
the triple-mode dielectric resonance structure is internally provided with a frequency tuning device for changing a resonance frequency of the degenerate triple-mode in the cavity.

2 more elements

Dependencies are inferred from the claim text.