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Ceramic dielectric multi-mode filter and assembly method thereof

A ceramic dielectric and assembly method technology, applied in the field of filters, can solve the problems of large size, heavy weight restrictions, loss and heat dissipation performance that cannot meet the needs of small cells or active antenna systems, and achieve high Q value, light weight, and volume small effect

Inactive Publication Date: 2015-06-24
MOBILE ANTENNA TECH SHENZHEN +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the large size and heavy weight of traditional metal coaxial cavity filters limit its further development, and the loss and heat dissipation performance of single-dielectric coaxial filter usually cannot meet the needs of small cells or active antenna systems

Method used

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  • Ceramic dielectric multi-mode filter and assembly method thereof
  • Ceramic dielectric multi-mode filter and assembly method thereof
  • Ceramic dielectric multi-mode filter and assembly method thereof

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Embodiment Construction

[0032] 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.

[0033] The ceramic dielectric multimode filter provided by the present invention includes a multilayer circuit board 70, a plurality of dielectric resonators 10 arranged in rows and welded to each other, and two radio frequency connectors 20, and the two radio frequency connectors 20 are electrically connected to the On the multilayer circuit board 70, two adjacent dielectric resonators 10 are coupled through a planar coupling structure, each of the dielectric resonators 10 is a ceramic dielectric resonator 10, and on the multilayer circuit board 70 There is a feed network 71, the dielectric resona...

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Abstract

The invention provides a ceramic dielectric multi-mode filter which comprises a multilayer circuit board, multiple dielectric resonators which are arranged in lines and close to each other and two radio-frequency connectors. The two radio-frequency connectors are in electric connection with the multilayer circuit board, two adjacent dielectric resonators are coupled with each other through a plane coupling structure, each dielectric resonator is a ceramic dielectric resonator, the multilayer circuit board is provided with a feed network, the resonators which are located at the two ends of one line of the resonators are in electric connection with the feed network, and the two radio-frequency connectors are in electric connection with the feed network. Each plane coupling structure can be a coupling window which is formed on a metal coating of a resonator attached end face, or a coupling window which is clamped on a metal coupling diaphragm between the two adjacent resonators. The invention further provides an assembly method of the ceramic dielectric multi-mode filter. Compared with a traditional metal coaxial cavity filter, the ceramic dielectric multi-mode filter has the advantages of being small in size, light in weight, good in cross-modulation performance, high in Q value and the like.

Description

technical field [0001] The invention belongs to the technical field of filters, in particular to a ceramic dielectric multimode filter and an assembly method thereof. Background technique [0002] With the increasing popularization of LTE (that is, Long Term Evolution, long-term evolution technology), equipment manufacturers and operators are faced with the challenges of coverage quality, decline in usage efficiency, and sharply increased demand for data capacity and spectrum resources. In response to the above problems, small cells and active antenna systems have gradually become the key development projects of various equipment manufacturers and operators. [0003] Today, with the rapid development of communication technology, filters and duplexers play an increasingly important role in communication systems, and their performance directly affects the front end of the radio frequency system. As a key component of small cells and active antenna systems, filters with small ...

Claims

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Application Information

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IPC IPC(8): H01P1/36H01P11/00
Inventor 张彪屠旋谢继林蓝祧汉
Owner MOBILE ANTENNA TECH SHENZHEN
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