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Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof

A cavity filter and resonator technology, applied in resonators, waveguide devices, circuits, etc., can solve the problems of increasing resonant frequency, unable to meet the filter filtering function, etc., to reduce the resonant frequency, reduce the volume, Avoid the effect of Q reduction

Active Publication Date: 2013-04-03
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the volume of the cavity filter and duplexer is inversely proportional to the resonant frequency. If the volume of the resonant cavity is directly reduced, the corresponding resonant frequency will increase, which cannot meet the requirements of the filter. filter function

Method used

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  • Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof
  • Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof
  • Harmonic oscillator as well as cavity filter and electromagnetic wave equipment thereof

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Embodiment Construction

[0055] The present invention relates to a harmonic oscillator, such as figure 1 as shown in figure 1As shown, it includes a medium body 3 and at least one response unit 4 . The dielectric body 3 usually has a through hole in the middle to form a ring shape, so that the tuning screw of the cavity filter can be inserted into the through hole for frequency tuning. The inner surface or the outer surface of the medium body 3 or one or more curved surfaces between the inner surface and the outer surface are cylindrical surfaces, and the response unit 4 is arranged on at least one of the cylindrical surfaces.

[0056] The cylindrical surface in this article can be an actual interface, such as an inner surface or an outer surface, or the medium body 3 includes a first medium cylinder and a second medium cylinder nested inside and outside, and the contact interface between the two is a cylindrical surface, and the response unit 4 attached to the cylindrical surface, such as figure ...

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Abstract

The invention relates to a harmonic oscillator, which comprises a medium body with a cylindrical face and at least one response unit attached to the cylindrical face, wherein the response unit is a structure with a geometrical pattern made of a conducting material. The invention also relates to a cavity filter and electromagnetic wave equipment with the harmonic oscillator. By adopting the harmonic oscillator, the dielectric constant can be effectively increased, the resonant frequency of the cavity filter is reduced, thus realizing miniaturization, and for TM-mode electromagnetic waves, the frequency can be reduced and the electromagnetic loss is not affected.

Description

technical field [0001] The invention relates to the field of radio frequency devices, and more specifically, relates to a resonator, a cavity filter and electromagnetic wave equipment thereof. Background technique [0002] Harmonic oscillators, also known as dielectric resonators, have high dielectric constants and low electromagnetic losses, and are widely used in various microwave and radio frequency devices, such as cavity filters and duplexers composed of cavity filters. Usually, the resonator is cylindrical and is sintered integrally with microwave dielectric ceramics. [0003] Although microwave dielectric ceramics also have the advantages of high dielectric constant, low electromagnetic loss, and high withstand power to meet the requirements of resonators, but with the development of science and technology and the continuous improvement of product integration, people's attention to filters and duplexers The demand for miniaturization has further increased. In the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/10H01P7/06H01P1/20H01P1/205H01P1/207
CPCH01P7/10H01P7/06H01P1/2002
Inventor 刘若鹏徐冠雄刘京京许宁
Owner KUANG CHI INST OF ADVANCED TECH
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