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Suspended stripline bandstop filter and its communication cavity device

A technology of band-stop filter and stripline, which is applied in the field of communication radio frequency, can solve the problems of inability to realize insertion loss and volume, large volume and weight, large insertion loss, etc., and achieve light weight, small size, and large coupling capacitance Effect

Active Publication Date: 2019-09-06
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing band-stop filters, such as suspended stripline band-stop filters, have relatively large insertion loss; while microstrip circuit board band-stop filters have relatively large volume and weight, and it is impossible to achieve the matching of insertion loss and volume. compatible

Method used

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  • Suspended stripline bandstop filter and its communication cavity device
  • Suspended stripline bandstop filter and its communication cavity device
  • Suspended stripline bandstop filter and its communication cavity device

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] Such as figure 1 As shown, the present invention provides a suspended stripline bandstop filter 100 . The suspended stripline band-stop filter 100 can take into account performance indicators such as insertion loss and volume, and has the characteristics of small size and light weight. At the same time, it can realize small insertion loss, large power capacity, high Q value, passband and stopband Good performance with wide bandwidth. In addition, the suspended stripline band-stop filter 100 has a simple structure, which is favor...

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Abstract

Provided is a suspended strip-line band-stop filter. The suspended strip-line band-stop filter comprises a cavity and a cover plate covering and mounted on the cavity, wherein an elongated space is arranged inside the cavity; at least two successively arranged resonant cavities are arranged along a longitudinal direction in the elongated space; each resonant cavity is provided with a resonant column; a dielectric substrate electrically connected to the resonant column is arranged between the resonant cavity and the cover plate; a transmission line conduction band is laid at one side, close to the resonant cavity, of the dielectric substrate; a resonant disc opposite the transmission line conduction band in a coincident manner so as to realise capacitive coupling is arranged on the dielectric substrate; and the resonant disc is in electrical contact with the resonant column. The suspended strip-line band-stop filter can realise good performances, such as a wide band-stop bandwidth, a high suppression degree, a great Q value and a low insertion loss, while taking characteristics such as a small volume and a light weight into consideration. In addition, also provided is a communication cavity device using the suspended strip-line band-stop filter.

Description

technical field [0001] The invention relates to the technical field of communication radio frequency, in particular, the invention relates to a suspended stripline band-stop filter and a communication cavity device thereof. Background technique [0002] A band-stop filter is a filter that passes most frequency components but attenuates certain ranges of frequency components to a very low level. The band-stop filter has the characteristics of wide bandwidth, high rejection and low loss. It is widely used in the field of communication and broadband services, and is the core component of the communication system. [0003] Existing band-stop filters, such as suspended stripline band-stop filters, have relatively large insertion loss; while microstrip circuit board band-stop filters have relatively large volume and weight, and it is impossible to achieve the matching of insertion loss and volume. compatible. [0004] Therefore, there is an urgent need in the industry for a tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/208
Inventor 何昌委陈凯张灵芝谢振雄丁海
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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