Design of Cavity Filter Based on Multi-port Parameter Extraction and Aggressive Space Mapping
An efficient design method for micro wave filters based on multi-port parameter extraction and space mapping is pres-ented in this paper.Firstly,the coupling matrix through Y parameters of the multi-port filter electromagnetic model added from ad-dtional internal ports is computed.Then,the problem of finding optimal size of filter is transformed into the problem of approxima-ting ideal coupling matrix.Finally,a fourth-order coaxial cavity filter is designed and fabricated.The physical size of the filter can be obtained after four iterations under the condition that the initial value deviation is large.The real debugging results and the sim-ulation results are in good agreement,which proves that the proposed method is fast and effective.
万方数据
维普
