Electronic Science and Technology ›› 2019, Vol. 32 ›› Issue (4): 20-23.doi: 10.16180/j.cnki.issn1007-7820.2019.04.005

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Dimension Synthesis Method of Suspended Substrate Stripline Filter

LI Gang1,HU Xu2   

  1. 1. School of Physics and Electronic Engineering, Hubei University of Arts and Science, Xiangyang 441053, China
    2. School of Economics, Political Science & Law, Hubei University of Arts and Science, Xiangyang 441053, China;
  • Received:2018-03-18 Online:2019-04-15 Published:2019-03-27
  • Supported by:
    Natural Science Foundation of Hubei Province(2015CFB663);Xiangyang General Science and Technology Project in 2017


As for the low precision problem of designing the Suspended Substrate Stripline filter based on empirical formulas, this paper presented a dimension synthesis method of the SSS filter. The equivalent circuit model of the resonant cavity and coupling structure of the SSS filter was established and the influence of the reactance slope of the coupling structure on the resonant cavity was analyzed in detail. Through the full wave simulation, the reactance slope parameters of the coupling structure could be accurately extracted and the physical length of the transmission line cavity was corrected step by step without time-consuming full wave optimization. Finally, A five orders SSS filter with Chebyshev response was designed. The simulation results agreed well with the theoretical results, which verified the validity of the method.

Key words: filter, suspended substrate stripline, the equivalent circuit model, computer aided design, circuit simulation, filter synthesis

CLC Number: 

  • TN713.5