Implementation of Distributed-Element Foster Section and Its Applications to Bandpass Filters

Jongheun Lee; Juseop Lee

doi:10.1109/LMWC.2021.3135267

Implementation of Distributed-Element Foster Section and Its Applications to Bandpass Filters

Jongheun Lee
, Juseop Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

An accurate method to implement a bandpass-domain coupled-line Foster section is presented. Two types of practical coupled-line structures are presented and closed-form equations for their design parameters are given in terms of lowpass prototype parameters, reference impedance, and fractional bandwidth so that one can readily use them in various filter designs. The design process of a bandpass filter using Foster sections is described via an example.

Original language	English
Pages (from-to)	391-394
Number of pages	4
Journal	IEEE Microwave and Wireless Components Letters
Volume	32
Issue number	5
DOIs	https://doi.org/10.1109/LMWC.2021.3135267
Publication status	Published - 2022 May 1

Bibliographical note

Funding Information:
This work was supported by the Institute for Information and Communication Technology Promotion (IITP) Grant through the Ministry of Science and ICT, South Korea, under Grant 2019-0-0008.

Publisher Copyright:
© 2001-2012 IEEE.

Keywords

Degenerate Brune section
Foster section

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2021.3135267

Cite this

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AB - An accurate method to implement a bandpass-domain coupled-line Foster section is presented. Two types of practical coupled-line structures are presented and closed-form equations for their design parameters are given in terms of lowpass prototype parameters, reference impedance, and fractional bandwidth so that one can readily use them in various filter designs. The design process of a bandpass filter using Foster sections is described via an example.

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Implementation of Distributed-Element Foster Section and Its Applications to Bandpass Filters

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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