Tunable substrate integrated waveguide circular resonant cavity filter

A substrate-integrated waveguide and resonant cavity technology, applied in the field of millimeter wave technology, can solve the problems of complex process, high manufacturing difficulty, narrow tuning range, etc., and achieve the effects of short design cycle, low cost, and wide tuning range

Active Publication Date: 2015-11-11
SOUTHEAST UNIV
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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a tunable substrate-integrated waveguide circular resonator filter, which has a simple process and has the characteristic of predictable tuning frequency while realizing tunable frequency; It solves the existing defects of complex process, difficult production and narrow tuning range

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  • Tunable substrate integrated waveguide circular resonant cavity filter
  • Tunable substrate integrated waveguide circular resonant cavity filter
  • Tunable substrate integrated waveguide circular resonant cavity filter

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] A tunable substrate integrated waveguide circular resonator filter, the filter uses a symmetrical circular SIW resonator structure as the basic unit; as figure 1 , figure 2 As shown, the circular SIW resonant cavity structure includes an intermediate dielectric substrate 6, a top metal layer 1 is arranged on the upper surface of the intermediate dielectric substrate 6, and a bottom metal layer 3 is arranged on the lower surface of the intermediate dielectric substrate 6, along the circumference Direction On the intermediate dielectric substrate 6, there are periodically arranged metallized through holes 5, and the metallized through holes 5 are electrically connected to the top metal layer 1 and the bottom metal layer 3; on the intermediate dielectric substrate 6 of the circular SIW resonant cavity structure Also be provided with an air slot 4, the air slot 4 ...

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Abstract

The present invention discloses a tunable substrate integrated waveguide circular resonant cavity filter. A symmetric circular SIW resonant cavity structure is used as a basic unit, and the middle dielectric substrate of the circular SIW resonant cavity structure is provided with an air slot in the diameter direction of the middle dielectric substrate. The air slot is internally provided with a metal column capable of moving along the diameter direction of the middle dielectric substrate, and a turning unit is formed by the air slot and the metal column. The main mold resonance frequency of the circular SIW resonant cavity structure is adjusted through adjusting the circle center distance between the metal column and the middle dielectric substrate. The filter provided by the invention has the advantages of simple structure and easy processing, a frequency band is in a Ku band, the tuning range of the filter reaches 18%, the main mold frequency can be adjusted continuously, and the estimated tuning can be carried out.

Description

technical field [0001] The invention relates to a tunable substrate integrated waveguide circular resonant cavity filter, which belongs to millimeter wave technology. Background technique [0002] With the rapid development of modern microwave and millimeter wave circuit systems, its functions are becoming more and more complex, and its electrical performance requirements are getting higher and higher. At the same time, its volume is getting smaller and lighter; Lightweight, high reliability, versatility and low cost direction. Low-cost, high-performance, high-yield microwave and millimeter wave technologies are critical to the development of commercial low-cost microwave and millimeter wave broadband systems. Therefore, there is an urgent need to develop new microwave and millimeter wave integration technologies. Substrate Integrated Waveguide (Substrate Integrated Waveguide, SIW) is a three-dimensional periodic structure, which can be fabricated in an integrated process,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/06
Inventor 周健义黄菲
Owner SOUTHEAST UNIV
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