A Microwave Frequency Selective Device Based on Bandgap Closed Loop
A microwave and frequency selection technology, which is applied in the microwave field to achieve the effect of high withstand power, guaranteed transmittance, and low transmission stability loss.
Active Publication Date: 2021-10-01
NAVAL UNIV OF ENG PLA
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[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a microwave frequency-selective device based on bandgap closed-loop, aiming to solve the technical problem that the microwave frequency-selective device can be flexibly adjusted while realizing high-frequency filtering
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other. The present invention will be further described in detail below in combination with specific embodiments.
[0026] A microwave frequency-selective device based on bandgap closed-loop. The microwave frequency-selective device includes a closed-loop bandgap structure, an input waveguide and an output waveguide. The closed-loop bandgap structure is composed of an inner ring metal sheet, an o...
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Abstract
The invention discloses a microwave frequency selection device based on bandgap closed-loop, which comprises a closed-loop bandgap structure, an input waveguide and an output waveguide. The closed-loop bandgap structure is composed of an inner ring metal sheet, an outer ring metal sheet, an upper metal sheet A closed-loop columnar structure formed end-to-end connected with the lower metal sheet. The ratio of the cross-sectional area of the inner ring to the cross-sectional area of the outer ring of the closed-loop bandgap structure is greater than 90%. The sides of the closed-loop bandgap structure are respectively provided with input ports and outputs. The input port is connected to the port of the input waveguide, and the output port is connected to the port of the output waveguide. Compared with the current microwave frequency selection technology, the waveguide filter frequency selection device has the advantages of sensitive and accurate frequency selection, convenient and flexible adjustment of transmittance, and simple structure. Damage, flexible disassembly and assembly, stable transmission, low loss, and high power withstand.
Description
technical field [0001] The invention belongs to the microwave field, and in particular relates to a microwave frequency-selective device based on a bandgap closed loop. Background technique [0002] Research and development of microwave frequency-selective devices is an important direction in the field of microwave engineering. Microwave frequency-selective devices are widely used in various microwave radio frequency equipment. The current microwave frequency-selective devices are mainly realized by two technical approaches, that is, the multi-stage series connection of frequency-selective circuits of LC components is used to realize it, or the frequency-selected device is realized by microstrip filtering. [0003] However, for the realization of multi-stage series series of frequency selection circuits of LC components, the higher the filtering accuracy requirements are, the more LC frequency selection circuits need to be connected in series, resulting in high cost and com...
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IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 赵林朱婷婷王宁谢慧张志刚吴华宁冯慧婷
Owner NAVAL UNIV OF ENG PLA