A cavity high-q three-mode dielectric resonant hollow structure and a filter containing the resonant structure
A medium resonance, hollow structure technology, applied in resonators, waveguide devices, circuits, etc., can solve problems such as bulky filters
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Embodiment example 1
[0107] Such as figure 1As shown, a cavity high-Q multi-mode dielectric resonant structure includes a cavity 1 and a cover plate 4, and the cavity 1 is provided with a dielectric resonator block and 6 dielectric support frames, and the dielectric support frame is a cylinder shape.
[0108] In order to clarify the essence of the present invention more clearly, the following data are further explained: the following table data is controlled within the range of 1880MHz±5MHz by the fundamental mode frequency in the multimode resonant structure, the medium adopts Er35, and the Q×F=80000 of the material is changed. The side length of the single cavity, in order to ensure the resonance frequency of the fundamental mode, the size of the dielectric resonator block changes accordingly, and the Q value of the single cavity varies with A1 / A2. The Q value of the fundamental mode and the higher-order mode adjacent to the fundamental mode varies with A1 / A2=K and the conversion point is shown...
Embodiment Embodiment 2
[0117] Such as image 3 As shown, a cavity high-Q multi-mode dielectric resonant structure includes a cavity 1 and a cover plate 4, and a dielectric resonant block is arranged in the cavity 1 . When the length, width and height of the inner wall of a typical single-cavity cavity are 33mm×33m×33mm, the size of the dielectric resonance block is 27.43mm×27.43mm×27.43mm (without a dielectric support frame, which is equivalent to the dielectric support frame being air), and the dielectric resonance block When the dielectric constant of the block is 35, the material Q×F=80000 forms a three-mode, the frequency is 1881MHz, and the Q value reaches 17746.8. The specific simulation results are shown in the table below.
[0118] frequency Q value mode 1 1881.60 17746.8 mode 2 1881.93 17771.3 mode 3 1882.56 17797.2 mode 4 1905.31 10678.2
Embodiment Embodiment 3
[0120] Such as Figure 4 As shown, a cavity high-Q multi-mode dielectric resonant structure includes a cavity 1 and a cover plate 4. The cavity 1 is provided with a dielectric resonator block and a plurality of coplanar dielectric support frames. The dielectric support The frame is cylindrical (or cuboid). When the length, width and height of the inner wall of a typical single-cavity cavity are 33mm×33m×33mm, the size of the dielectric resonator block is 27.43mm×27.43mm×27.43mm (with a dielectric support frame, and the diameter of the dielectric support frame is 2mm, and the dielectric constant is When the loss tangent is 1.06, the loss tangent is 0.0015), the dielectric constant of the dielectric resonator block is 35, and the material Q×F=80000, a three-mode is formed, the frequency is 1881MHz, and the Q value reaches 17645. The specific simulation results are shown in the table below.
[0121] frequency Q value mode 1 1885.20 17645.1 mode 2 1885...
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