Ultra-thin filter

A filter and ultra-thin technology, applied in the field of filters, can solve the problems of reducing the resonant frequency, increasing the volume and weight of the cavity, and increasing the height of the resonator, so as to reduce the resonant frequency, reduce the volume and weight, and increase the overall area effect

Active Publication Date: 2018-02-16
NINGBO HUACI COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an ultra-thin filter, which aims to solve the problem that the filter in the prior art needs to increase the height of the resonator to reduce the resonance frequency, resulting in a large increase in the volume and weight of the cavity

Method used

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] The ultra-thin filter provided by the present invention is provided by setting the resonator to include a resonator main body connected to the cavity, a connecting part vertically connected to one end of the resonator main body, and a bending part connected to both ends of the connecting part. The two ends of the resonator body are bent and extended to the side where the resonator body is located. By setting the connection part perpendicular to the resonator body, the connection part is bent relative to the resonator body to make full use of the internal space of the cavity. The connection pa...

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Abstract

The present invention belongs to the filter technical field and provides an ultra-thin filter. The ultra-thin filter includes a cavity and a resonator fixed in the cavity; the resonator includes a resonator main body connected with the cavity, a connection portion vertically connected with one end of the resonator main body and bent portions connected with two ends of the connection portion; portions at two ends of the connection portion are bent and extend towards one side where the resonator main body is located so as to form the bent portions; and the resonator main body, the connection portion and the bent portions are molded integrally. According to the ultra-thin filter provided by the invention adopted, the resonator includes the resonator main body connected with the cavity, the connection portion vertically connected with one end of the resonator main body and the bent portions connected with two ends of the connection portion; the connection portion and the bent portions fully utilize the inner space of the cavity, and therefore, the resonant frequency of the resonator can be reduced, and the height of the resonator is not required to be increased. In a case that the resonator reaches the same resonance frequency, the height of the resonator of the present invention is smaller than the height of a cylindrical resonator, so that the overall size and weight of the cavity can be reduced.

Description

technical field [0001] The invention belongs to the technical field of filters, in particular to an ultra-thin filter. Background technique [0002] A filter is a device or circuit that processes signals, which can reduce or eliminate the influence of harmonics on the power system. With the continuous development of the electronic market, filters are more and more widely produced and used. Filters are developing in the direction of low power consumption, high precision, small size, and stability and reliability. Among them, small size and multi-function have become The main development direction of filters today. [0003] In the prior art, the filter is usually composed of a cavity and several resonators installed in the cavity. Among them, the existing resonators are usually arranged in a cylindrical structure. When the resonant frequency of the resonator needs to be reduced, the resonance frequency needs to be increased. The height of the resonator is increased to increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208H01P7/00
CPCH01P1/208H01P7/00
Inventor 蔡磊张中玉董高超黄永红熊家平
Owner NINGBO HUACI COMM TECH
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