Resonant cavity
A technology of resonant cavity and cavity, which is applied in the field of resonant cavity, can solve the problems of increased loss and inability to achieve frequency reduction effect, and achieve the effect of meeting filtering requirements
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[0021] The present invention relates to a resonant cavity, such as figure 1 , figure 2 As shown, it includes a cavity 2, a plurality of metamaterial plates 4 and an adjustment device. Wherein, the cavity body 2 has an approximately square inner space, and a cavity cover 1 may be arranged above to close the space. An input terminal 3 and an output terminal may also be provided on both side walls of the resonant cavity.
[0022] The innovation of the present invention is that there are a plurality of metamaterial plates 4 and an adjustment device connected to each metamaterial plate 4 inside the cavity 2 to adjust the relative position between two adjacent metamaterial plates 4, Thereby changing the resonant frequency of the resonant cavity.
[0023] Metamaterial, also known as artificial electromagnetic material, is a material that has a special response to electromagnetic waves. It is formed by a dielectric substrate and artificial microstructures periodically arranged on ...
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