Resonators, Filters, Duplexers, Multiplexers and Communication Equipment

A resonator and filter technology, applied in resonators, waveguide devices, electrical components, etc., can solve the problem of high price, and achieve the effects of low cost, reduced volume, and enhanced volume reduction.

Active Publication Date: 2018-05-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, high-performance ceramic materials often contain rare earths, which are expensive due to the global scarcity of rare earth resources

Method used

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  • Resonators, Filters, Duplexers, Multiplexers and Communication Equipment
  • Resonators, Filters, Duplexers, Multiplexers and Communication Equipment
  • Resonators, Filters, Duplexers, Multiplexers and Communication Equipment

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] see figure 1 , is a cross-sectional view of a resonator 100 provided in the first embodiment of the present invention. The resonator 100 includes: a resonant cavity 11 , a cover plate 12 and a resonant tube 13 . Further, the resonator 100 may also include a tuning screw 14 .

[0035] The resonant cavity 11 is a metal cavity, and the resonant cavity 11 can be entirely made of metal material or at least a metallized cavity on the inner surface, which has a r...

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Abstract

The present invention provides a resonator, comprising a resonant cavity body with a resonant cavity and an open end, a cover plate covering the open end and connected to the resonant cavity body, a resonant tube located in the resonant cavity, and The resonator also includes a dielectric material filled in the resonant cavity with a dielectric constant greater than 1. The resonant tube includes a resonant tube body and an elastic structure combined with the resonant tube body. The dielectric material is filled in the resonant tube body. The capacitance area in the resonant cavity, the elastic structure provides elastic pressure along the axial direction of the resonant tube, so that the upper and lower end surfaces of the dielectric material are respectively connected to the lower surface of the cover plate and the upper surface of the resonant tube Close contact. The resonator provided by the invention can reduce conductor loss, increase power capacity and have low cost. The invention also provides filters, duplexers, multiplexers and communication equipment using the resonator.

Description

technical field [0001] The invention relates to the field of communication equipment, in particular to a resonator, filter, duplexer, multiplexer and communication equipment. Background technique [0002] The development trend of broadband wireless communication requires base station RF front-end duplexers to have smaller volume, greater power capacity, and lower cost while maintaining performance such as loss. Cavity (that is, coaxial resonant cavity filled with air) filter is a traditional technology of base station duplexer, which is mature in technology and low in cost. A cavity filter generally includes a cover plate and a plurality of cavities, and each cavity is provided with a plurality of resonant tubes. The function of each cavity is equivalent to an electronic oscillation circuit. When the filter is tuned to the appropriate wavelength of the received signal, the oscillation circuit can be expressed as a parallel oscillation circuit including an inductance part an...

Claims

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Application Information

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IPC IPC(8): H01P7/06
CPCH01P7/04H01P1/205H01P1/207H01P1/2133H01P7/06
Inventor 梁丹陈科邓晓毅
Owner HUAWEI TECH CO LTD
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