A convex cavity three-mode resonant structure and a filter containing the resonant structure
A resonant structure and cavity technology, applied in resonators, waveguide-type devices, circuits, etc., can solve the problems of high resonance frequency sensitivity of single cavity, unfavorable mass production of dielectric resonator blocks, and extremely high design accuracy requirements.
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[0062] The invention discloses a convex cavity three-mode resonant structure, which includes a cavity and a cover plate, a dielectric resonator block and a dielectric support frame are arranged in the cavity, the cavity is in the shape of a cube, and the The dielectric resonator block is in the shape of a cube and at least one end surface is convex, and the dielectric support frame is respectively connected with the dielectric resonator block and the inner wall of the cavity, and the dielectric resonator block and the dielectric support frame form a three-mode dielectric resonance Rod, the dielectric constant of the dielectric support frame is smaller than the dielectric constant of the dielectric resonator block; when the ratio K between the size of one side of the inner wall of the cavity and the size of the corresponding side of the dielectric resonator block is : When conversion point 1≤K≤transition point 2, the Q value of the higher mode adjacent to the fundamental mode of...
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