Improved design equations of the tapped-line structure for coupled-line filters

Chih Ming Tsai, Hong Ming Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Coupled-line filters with tapped input and output are studied in this letter. The tapped-line structures are used for transformation of the filter impedances to lower values. This makes the filter more suitable for manufacture. However, the variation of the transformed impedances around the passband central frequency, due to the tapped feeds, distorts the filter responses. In this letter, design equations are proposed to improve the design by taking into account this variation. Finally, a filter design example is given to justify the study.

Original languageEnglish
Pages (from-to)244-246
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume17
Issue number4
DOIs
Publication statusPublished - 2007 Apr 1

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filters
impedance
output

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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Improved design equations of the tapped-line structure for coupled-line filters. / Tsai, Chih Ming; Lee, Hong Ming.

In: IEEE Microwave and Wireless Components Letters, Vol. 17, No. 4, 01.04.2007, p. 244-246.

Research output: Contribution to journalArticle

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