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Inductive coupling components, cavity filters and communication RF equipment

A cavity filter, inductive coupling technology, applied in the field of communication, can solve the problem of limited clutter suppression ability and so on

Active Publication Date: 2022-07-26
盐城东山通信技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an inductive coupling component, a cavity filter and a communication radio frequency device, so as to at least solve the problem that the existing cavity filter has limited ability to suppress clutter without adding a resonator

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  • Inductive coupling components, cavity filters and communication RF equipment
  • Inductive coupling components, cavity filters and communication RF equipment
  • Inductive coupling components, cavity filters and communication RF equipment

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Embodiment Construction

[0030] The inductive coupling component, cavity filter and communication radio frequency device proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, each drawing needs to show different emphases, and sometimes different scales are used.

[0031] It should be noted that "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects, so as to describe the embodiments of the present invention, rather than to describe a specific order or sequence. order, it should be understood that structures so used may...

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Abstract

The invention provides an inductive coupling component, a cavity filter and a communication radio frequency device, wherein the inductive coupling component includes: a cavity, a resonator, a tuning screw and an inductive metal sheet; the cavity has N resonant cavities, and the i-th resonant cavity There is a coupling window between the resonator and the i+1th resonator; the resonator, the resonator and the tuning screw are set in one-to-one correspondence; the inductive metal sheet connects the first resonator and the Nth resonator, and the length of the inductive metal sheet is less than 1 / 4 wavelength of the resonator. The first resonator and the Nth resonator are connected by an inductive metal sheet, so that an inductive coupling zero is generated between the first resonator and the Nth resonator; in addition, the scheme does not strictly require the resonator In the arrangement, the tuning of the inductive coupling zero point can be achieved only by adjusting the structure of the inductive metal sheet, thus breaking the constraints of the filter structure and space. The problem that the existing cavity filter has a limited ability to suppress clutter without adding a resonator is solved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an inductive coupling component, a cavity filter and a communication radio frequency device. Background technique [0002] With the rapid development of wireless mobile communication technology, filters, especially cavity coaxial filters, have become indispensable devices in the field of modern communications. [0003] In filter design, in order to achieve the optimization of low loss, structure and cost, the number of resonators should be reduced as much as possible, but the suppression effect of the filter on the clutter outside the passband will change with the reduction of the number of resonators. Difference. Typically, the addition of cross-coupled transmission zeros is used to reduce the number of resonators without compromising the filter's ability to suppress clutter. However, in the currently commonly used filters, limited by the topology structure and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/208H01P5/12
CPCH01P1/208H01P5/12
Inventor 梁永团刘建平曹凤杰
Owner 盐城东山通信技术有限公司
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