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Dielectric filer, dielectric resonator and cover plate unit, and communication equipment

A dielectric resonator and dielectric filter technology, applied in resonators, waveguide devices, electrical components, etc., can solve the problem of poor contact between the dielectric resonant column and the cover plate, and achieve the effect of reducing dimensional accuracy requirements and ensuring close contact.

Active Publication Date: 2011-08-10
ANHUI TATFOOK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of poor contact between the dielectric resonance column and the cover plate in the prior art, the embodiment of the present invention provides a dielectric filter with a new structure

Method used

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  • Dielectric filer, dielectric resonator and cover plate unit, and communication equipment
  • Dielectric filer, dielectric resonator and cover plate unit, and communication equipment
  • Dielectric filer, dielectric resonator and cover plate unit, and communication equipment

Examples

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Embodiment 1

[0023] Embodiment 1, a dielectric resonator. See figure 2 , figure 2 A schematic cross-sectional view of a dielectric resonator 200 and its cover unit 220 according to a preferred embodiment of the present invention is shown. like figure 2 As shown, the dielectric resonator 200 includes a cavity 210 , a cover unit 220 and a dielectric resonator column 230 .

[0024] The cover unit 220 covers the cavity 210 to form a resonance cavity 240; the dielectric resonance column 230 is disposed in the resonance cavity 240, and one end of the dielectric resonance column 230 is in contact with the cavity 210, wherein the cover plate The unit 220 includes an upper cover plate 222 and a lower cover plate 224, and an elastic member 250 arranged between the upper cover plate 222 and the lower cover plate 224, and the deformation of the elastic member 250 gives the lower cover plate 224 exerts pressure, so that the lower cover 224 is in close contact with the other end of the dielectric...

Embodiment 2

[0041] Embodiment 2, a cover plate unit. like Figure 5 shown, shows Figure 4 The schematic diagram of the partial structure of the cover plate unit of the dielectric resonator shown, specifically, Figure 5 A schematic diagram of the lower bottom surface of the upper cover plate of the cover plate unit 420 according to the embodiment of the present invention is shown. Please also see Figure 4 , The cover unit 420 according to the embodiment of the present invention includes an upper cover 422 and a lower cover 424, and the lower cover 424 is relatively thin. The upper cover 422 includes a body 4221 and a protrusion 4222, the protrusion 4222 is in close contact with the lower cover 424; The surface can be formed by stamping. It is easy to understand that the protruding portion 4222 may also be properly disposed on the lower surface of the upper cover plate 422 as an integral protruding block structure or an annular protruding structure. The shape, size and number of th...

Embodiment 3

[0042] Embodiment 3, please refer to Image 6 and Figure 7 , Image 6 shows a schematic cross-sectional view of a dielectric filter according to a preferred embodiment of the present invention, Figure 7 shown Image 6 A schematic diagram of the cover unit of the dielectric filter shown.

[0043] from Image 6 It can be easily seen from the figure that the dielectric filter 500 includes a plurality of the above-mentioned dielectric resonators, and the dielectric filter works through the coupling between the plurality of resonant cavities. A plurality of upper covers and a plurality of lower covers of a plurality of dielectric resonators can be integrally formed respectively to form an integral upper cover and an integral lower cover, and the integral lower cover is in elastic close contact with each dielectric resonant column in the cavity.

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PUM

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Abstract

The embodiment of the invention discloses a dielectric resonator and a cover plate unit thereof. The dielectric resonator comprises a cavity body, a cover plate unit and a dielectric resonant post, wherein the cover plate unit covers the cavity body to form a resonant cavity; the dielectric resonant post is arranged in the resonant cavity, and the lower end of the dielectric resonant post is contacted with the cavity body; the cover plate unit comprises an upper cover plate, a lower cover plate which is arranged below the upper cover plate, and an elastic component which is arranged between the upper cover plate and the lower cover plate; and the lower cover plate is stressed through deformation of the elastic component, so that the lower cover plate is tightly contacted with the upper end of the dielectric resonant post. Besides, the embodiment of the invention also discloses a dielectric filer and communication equipment using the same. By using the dielectric resonator, performance indexes of the communication equipment and the dielectric filer thereof can be optimized to a large extent.

Description

【Technical field】 [0001] The invention relates to the technical field of dielectric filters, in particular to a dielectric resonator and its cover unit, and also to a dielectric filter using the dielectric resonator and a communication device using the dielectric filter. 【Background technique】 [0002] As a frequency selection device, dielectric filters are widely used in the field of communication, especially in the field of radio frequency communication. In the base station, the filter is used to select the communication signal and filter out the clutter or interference signal outside the frequency of the communication signal. [0003] Dielectric filters are designed and manufactured using the characteristics of low loss, high dielectric constant, frequency temperature coefficient and thermal expansion coefficient of dielectric ceramic materials, and can withstand high power. It is characterized by low insertion loss and good power resistance. [0004] See figure 1 , fi...

Claims

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Application Information

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IPC IPC(8): H01P7/10H01P1/20
CPCH01P7/10H01P1/2084
Inventor 孙尚传申风平吴文敬
Owner ANHUI TATFOOK TECH CO LTD
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