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Resonant cavity

A technology of resonant cavity and resonant oscillator, which is applied in the field of resonant cavity, can solve problems such as interference of resonant cavity resonant frequency, difficult to meet the adjustment of resonant frequency, etc., and achieve the effect of good resonant frequency

Active Publication Date: 2013-04-10
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In actual use, it is usually necessary to adjust the resonant frequency of the resonant cavity. The traditional tuning device uses an adjustable screw on the top of the resonant cavity, and adjusts the resonant frequency by adjusting the length of the screw deep into the resonant cavity. However, when the resonant oscillator For metamaterials, the use of traditional tuning devices to adjust will cause a lot of unnecessary interference to the resonant frequency of the resonant cavity, making it difficult to meet the requirements for adjusting the resonant frequency

Method used

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Embodiment Construction

[0022] This embodiment provides a resonant cavity, such as figure 1 As shown, it includes a cavity 1, a resonator 2 made of metamaterials arranged in the cavity 1, and an adjustable length installed on the cavity 1 and deep into the cavity 1 and deep into the cavity 1 A tuning device, the tuning device includes a slide rod 3 passing through the top of the cavity and entering the cavity, a nut 8 fixed on the top of the cavity 1, fitted in the nut 8 and vertically against the The bolts 5 on the outer surface of the slide bar 3, the bracket 4 located in the cavity 1 and fixed on the slide bar 3 and the metamaterial 6 fixed on the bracket 4, and the bottom of the cavity 1 for supporting the resonator 2 Support 7.

[0023] The harmonic oscillator 2 includes two metamaterials, each metamaterial includes a metamaterial sheet, and each metamaterial sheet includes two substrates and a 3×5 array of artificial microstructures sandwiched between the substrates, the artificial microstruct...

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Abstract

The invention relates to a resonant cavity which comprises a cavity body, a harmonic oscillator arranged in the cavity body and a tuning device arranged on the cavity body and extending into the cavity body, and the length of the tuning device extending into the cavity is adjustable. The harmonic oscillator comprises at least one piece of metamaterial. A portion of the tuning device arranged in the cavity body is provided with at least one piece of metamaterial. According to the technical scheme, by changing the length of the tuning device in the cavity body, resonant frequency of the resonant cavity can be changed.

Description

technical field [0001] The invention relates to the field of wireless communication, more specifically, to a resonant cavity. Background technique [0002] The resonant cavity is a resonant element that works at microwave frequencies. It includes a cavity surrounded by conductive walls (or magnetically permeable walls) of any shape, and can form a medium area of ​​electromagnetic oscillation in it. It has the ability to store electromagnetic energy and select certain Characteristics of frequency signals. Generally speaking, the resonant frequency of a microwave resonant cavity depends on the volume of the cavity. The larger the resonant cavity volume, the lower the resonant frequency, and the smaller the resonant cavity volume, the higher the resonant frequency. Experiments show that when the resonator uses metamaterials, it can The resonant frequency of the resonant cavity can be reduced without increasing the size of the resonant cavity. Therefore, the use of metamaterial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/06
Inventor 刘若鹏栾琳刘京京钟果刘豫青
Owner KUANG CHI INST OF ADVANCED TECH
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