Synthesis of N-Foster-Section Filter with Maximum 2N Prescribed Transmission Zeros by Heuristic-Aided Graph Search

Seungjun Lee, Jongheun Lee, Juseop Lee

Research output: Contribution to journalArticlepeer-review

Abstract

A graph-search-based optimization method to synthesize Foster-section-cascaded filters is introduced. A heuristic cost function that determines the direction of the graph search, is presented, and the optimization algorithm does not require the gradient calculation of the cost function. Auxiliary features of the optimization that can improve the heuristic efficiency and the quality of the result are explained. Several successful synthesis examples and designs of the synthesized filters are given.

Original languageEnglish
Pages (from-to)3979-3990
Number of pages12
JournalIEEE Transactions on Microwave Theory and Techniques
Volume71
Issue number9
DOIs
Publication statusPublished - 2023 Sept 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) under Grant NRF-2022R1A2B5B01001340

Publisher Copyright:
© 1963-2012 IEEE.

Keywords

  • Foster section
  • optimization methods
  • synthesis

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Radiation
  • Electrical and Electronic Engineering

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