Radio frequency device and double-ended short-circuit dielectric filter thereof

A dielectric filter and filter technology, which is applied to waveguide-type devices, circuits, electrical components, etc., can solve problems such as unreliable short-circuit connection structures, and achieve the effects of solving unstable performance, simple processing and assembly processes, and low cost.

Active Publication Date: 2017-06-30
TONGYU COMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a radio frequency device and its double-terminal short-circuit dielectric filter, which can solve the technical problem of unreliable short-circuit connection structure between the dielectric resonance plate and the cavity in the prior art

Method used

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  • Radio frequency device and double-ended short-circuit dielectric filter thereof
  • Radio frequency device and double-ended short-circuit dielectric filter thereof
  • Radio frequency device and double-ended short-circuit dielectric filter thereof

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Embodiment 1

[0025] Please also refer to Figure 1-Figure 3 , figure 1 is a schematic diagram of the overall structure of an embodiment of the double-terminal short-circuit dielectric filter of the present invention, figure 2 yes figure 1 The cross-sectional view of the embodiment, image 3 yes figure 1 An exploded view of an embodiment, the double-terminal short-circuit dielectric filter includes a cavity 100 , a cover plate 200 , a dielectric resonant plate 300 , an elastic connecting plate 400 , a side cover plate 500 and a resonant rod 600 .

[0026] Specifically, the side cover plate 500 in this embodiment is connected to the cavity body 100 through cover plate screws 510. In other embodiments, it can also be embedded in the two sides of the cavity body 100 in the form of welding, solid glue, etc., and The cover plate 200 together closes the cavity to form a resonant cavity. In this embodiment, the filter chamber of the filter adopts the structure formed by the cooperation of th...

Embodiment 2

[0036] Please also refer to 5 and Figure 6 , Figure 5 It is a structural explosion diagram of another embodiment of the double-ended short-circuit dielectric filter of the present invention, Figure 6 yes Figure 5 Schematic diagram of the structure of the cover plate in the embodiment. The difference from the previous embodiment is that there are no side cover plates on both sides of the cavity 100 in this embodiment, and the short circuit groove 110 is a structure that does not penetrate the side wall of the cavity 100, and the cover plate 200 is provided with a positioning groove 230 and positioning protrusion 240, the positioning groove 230 is adjacent to the positioning protrusion 240 and is integrally formed with the cover plate 200, the positioning groove 230 and the positioning protrusion 240 are used to limit the position of the elastic connecting plate 400 from two directions on the horizontal plane, so as to This is to prevent the semi-circular elastic connecti...

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Abstract

The invention provides a radio frequency device and a double-ended short-circuit dielectric filter thereof. The filter comprises a cavity, a cover plate, a dielectric resonant plate and an elastic connection plate. The cavity is fixedly connected with the cover plate to form a resonant cavity. Short-circuit grooves are arranged on two opposite sides of the cavity. The dielectric resonant plate is arranged in the resonant cavity, and two ends are respectively inserted in the short-circuit grooves on two opposite sides of the cavity. The elastic connection plate is elastically crimped to both ends of the dielectric resonant plate, so that both ends of the dielectric resonant plate are in compression connection with the corresponding short-circuit groove, and reliable short-circuit contact connection between the dielectric resonant plate and the cavity is ensured. According to the double-ended short-circuit dielectric filter, reliable short-circuit connection between both ends of the dielectric resonant plate and the cavity is realized through the elastic connection plate; the problem of unstable performance of the dielectric resonant plate is solved; and the novel double-ended short-circuit filter has the advantages of simple processing and assembly process, low cost, reliable short circuit and easy realization.

Description

technical field [0001] The invention relates to the field of mobile communication equipment, in particular to a radio frequency device and a double-terminal short-circuit dielectric filter thereof. Background technique [0002] The filter is widely used in radio frequency, microwave, base station and other communication fields. It is a frequency filtering device, that is, to select and pass the required frequency band signal and effectively suppress the unnecessary frequency band signal. The traditional filter is a metal coaxial cavity filter, which has a mature manufacturing process and is widely used in the current mobile communication field. However, due to the large volume and loss of the metal coaxial cavity filter, the low Q value (quality factor), and the large change in performance due to the influence of temperature, the metal coaxial filter device is becoming smaller and has a higher Q value. , The direction of the development trend of the dielectric filter with m...

Claims

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Application Information

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IPC IPC(8): H01P1/20H01P1/207
CPCH01P1/2002H01P1/207
Inventor 王鹏博巨刚吴中林蔡辉周琪余剑钊王国奇
Owner TONGYU COMM INC
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