Filter embedded with non-uniform spur-lines for stopband enhancement design

Min-Hua Ho, Pow Wen Chen

Research output: Contribution to journalArticle

Abstract

We propose a coupled-line bandpass filter (BPF) embedded with multiple novel non-uniform spur-lines for a stopband bandwidth (BW) enhancement. The embedded spur-line is originated from a uniform slot by replacing the uniformly width slot with a stepped-width one. The frequency response of the proposed spur-line is analytically analyzed to show the size-reduction effect. As many as five spur-lines are embedded in the filter's three microstrip lines to eliminate the latters' first three spurious responses that beyond the fundamental one, achieving a much wider stopband BW. Experiment is conducted to verify the design and the circuit performance.

Original languageEnglish
Pages (from-to)15-19
Number of pages5
JournalInternational Journal of Electrical Engineering
Volume20
Issue number1
Publication statusPublished - 2013 Feb 1

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Bandwidth
Microstrip lines
Bandpass filters
Frequency response
Networks (circuits)
Experiments

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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abstract = "We propose a coupled-line bandpass filter (BPF) embedded with multiple novel non-uniform spur-lines for a stopband bandwidth (BW) enhancement. The embedded spur-line is originated from a uniform slot by replacing the uniformly width slot with a stepped-width one. The frequency response of the proposed spur-line is analytically analyzed to show the size-reduction effect. As many as five spur-lines are embedded in the filter's three microstrip lines to eliminate the latters' first three spurious responses that beyond the fundamental one, achieving a much wider stopband BW. Experiment is conducted to verify the design and the circuit performance.",
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Filter embedded with non-uniform spur-lines for stopband enhancement design. / Ho, Min-Hua; Chen, Pow Wen.

In: International Journal of Electrical Engineering, Vol. 20, No. 1, 01.02.2013, p. 15-19.

Research output: Contribution to journalArticle

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