Coaxial cavity filter coupling system
A coupling system and filter technology, applied in the field of filters, can solve problems such as failure to meet system operator filter performance requirements, and achieve the effects of simple structure, simple coupling conditions, and convenient processing
Inactive Publication Date: 2018-11-13
CHENGDU XUSITE TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a coaxial cavity filter coupling system, and solve the problem that the above scheme cannot meet the increasingly stringent filter performance requirements of system operators for the need to improve the sensitivity of coupling adjustment
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[0019] Such as figure 1 As shown, a coaxial cavity filter coupling system of the present invention includes a filter housing 1, the filter housing 1 is a cylindrical structure, and the inside of the filter housing 1 is respectively the first resonance The filter cavity 3 and the second resonator cavity 4, the two ends of the filter housing 1 are respectively provided with a first cover plate 5, a second cover plate 6, the first resonator cavity 3 and the second resonator cavity 4 are equipped with filter coupling structure.
[0020] The filter coupling structure includes a coupling column 7 arranged on the partition 2, a coupling sheet 8 connected to the coupling column 7, and a coupling adjustment assembly, and the coupling adjustment assembly includes a first cover plate 5 or a second The cover plate 6 transfer rod 9, and the cam structure 10 connected to the end of the transfer rod 9 and made of insulating material, the cam structure 10 is arranged on the side of the coupl...
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The invention discloses a coaxial cavity filter coupling system. The coaxial cavity filter coupling system comprises a filter shell, wherein the filter shell is a cylinder structure, the interior of the filter shell is divided by a partition plate into a first resonator cavity and a second resonator cavity, two ends of the filter shell are respectively provided with a first cover plate and a second cover plate, and a filter coupling structure is respectively arranged in the first resonator cavity and the second resonator cavity; and the filter coupling structure comprises a coupling column arranged on the separation plate, a coupling piece connected to the coupling column and a coupling adjusting assembly, the coupling adjusting assembly comprises an adapting rod penetrating through the first cover plate or the second cover plate, and a cam structure connected to the end of the adapting rod and made of an insulation material, the cam structure is arranged on one side of the coupling piece and is extruded onto the coupling piece, the other side of the coupling piece is provided with a resonant adjusting rod, the cam structure is driven by rotating the adapting rod, and the cam structure squeezes the coupling piece, so that a distance between the coupling piece and the resonant adjusting rod is adjusted.
Description
technical field [0001] The invention relates to the technical field of filters, in particular to a coaxial cavity filter coupling system. Background technique [0002] With the development of modern wireless communication and communication-related industries, radio frequency resources are becoming more and more scarce, and the frequency bands used by various communication systems are getting closer and closer. It is easy to interfere with communication systems in adjacent frequency bands and make them unable to work normally, thus Higher requirements are placed on the communication system. In order to strengthen the suppression of adjacent frequency bands in the communication system, the suppression of each component in the system needs to be improved, and the requirements for filters, duplexers and combiners that mainly play a role in suppression in the communication system are even higher. [0003] For the development and design process of the coaxial cavity filter, when ...
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IPC IPC(8): H01P5/12
CPCH01P5/12
Inventor 罗志刚宋旭江文彬
Owner CHENGDU XUSITE TECH CO LTD