Symmetrical Quasi-Reflectionless BSFs

Roberto Gomez-Garcia; Jose Maria Munoz-Ferreras; Dimitra Psychogiou

doi:10.1109/LMWC.2018.2805462

Symmetrical Quasi-Reflectionless BSFs

Roberto Gomez-Garcia
, Jose Maria Munoz-Ferreras
, Dimitra Psychogiou

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

Abstract

A type of symmetrical bandstop filters (BSFs) with quasi-reflectionless behavior is reported. The engineered BSF configuration is made up of a bandstop section with resistively terminated bandpass sections that are connected at its input/output accesses. These bandpass sections, which exhibit a nearly complementary transfer function with regard to the one of the bandstop section, dissipate the nontransmitted input-signal energy in their loads. The theoretical foundations of the first-order quasi-reflectionless BSF and synthesis examples are detailed. Its extrapolation to higher order and multiband BSFs is also shown. Furthermore, as experimental validation, a 2.35-GHz second-order microstrip prototype is developed and measured.

Original language	English
Pages (from-to)	302-304
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	28
Issue number	4
DOIs	https://doi.org/10.1109/LMWC.2018.2805462
Publication status	Published - Apr 2018
Externally published	Yes

Keywords

Absorptive filter
bandstop filter (BSF)
coupling matrix
frequency transformation
microstrip filter
microwave filter
multiband filter
planar filter
reflectionless filter
RF filter

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10.1109/LMWC.2018.2805462

Cite this

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title = "Symmetrical Quasi-Reflectionless BSFs",

abstract = "A type of symmetrical bandstop filters (BSFs) with quasi-reflectionless behavior is reported. The engineered BSF configuration is made up of a bandstop section with resistively terminated bandpass sections that are connected at its input/output accesses. These bandpass sections, which exhibit a nearly complementary transfer function with regard to the one of the bandstop section, dissipate the nontransmitted input-signal energy in their loads. The theoretical foundations of the first-order quasi-reflectionless BSF and synthesis examples are detailed. Its extrapolation to higher order and multiband BSFs is also shown. Furthermore, as experimental validation, a 2.35-GHz second-order microstrip prototype is developed and measured.",

keywords = "Absorptive filter, bandstop filter (BSF), coupling matrix, frequency transformation, microstrip filter, microwave filter, multiband filter, planar filter, reflectionless filter, RF filter",

author = "Roberto Gomez-Garcia and Munoz-Ferreras, \{Jose Maria\} and Dimitra Psychogiou",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.",

year = "2018",

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doi = "10.1109/LMWC.2018.2805462",

language = "English",

volume = "28",

pages = "302--304",

journal = "IEEE Microwave and Wireless Components Letters",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Symmetrical Quasi-Reflectionless BSFs

AU - Gomez-Garcia, Roberto

AU - Munoz-Ferreras, Jose Maria

AU - Psychogiou, Dimitra

PY - 2018/4

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N2 - A type of symmetrical bandstop filters (BSFs) with quasi-reflectionless behavior is reported. The engineered BSF configuration is made up of a bandstop section with resistively terminated bandpass sections that are connected at its input/output accesses. These bandpass sections, which exhibit a nearly complementary transfer function with regard to the one of the bandstop section, dissipate the nontransmitted input-signal energy in their loads. The theoretical foundations of the first-order quasi-reflectionless BSF and synthesis examples are detailed. Its extrapolation to higher order and multiband BSFs is also shown. Furthermore, as experimental validation, a 2.35-GHz second-order microstrip prototype is developed and measured.

AB - A type of symmetrical bandstop filters (BSFs) with quasi-reflectionless behavior is reported. The engineered BSF configuration is made up of a bandstop section with resistively terminated bandpass sections that are connected at its input/output accesses. These bandpass sections, which exhibit a nearly complementary transfer function with regard to the one of the bandstop section, dissipate the nontransmitted input-signal energy in their loads. The theoretical foundations of the first-order quasi-reflectionless BSF and synthesis examples are detailed. Its extrapolation to higher order and multiband BSFs is also shown. Furthermore, as experimental validation, a 2.35-GHz second-order microstrip prototype is developed and measured.

KW - Absorptive filter

KW - bandstop filter (BSF)

KW - coupling matrix

KW - frequency transformation

KW - microstrip filter

KW - microwave filter

KW - multiband filter

KW - planar filter

KW - reflectionless filter

KW - RF filter

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DO - 10.1109/LMWC.2018.2805462

M3 - Article

AN - SCOPUS:85042848631

SN - 1531-1309

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SP - 302

EP - 304

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 4

ER -

Symmetrical Quasi-Reflectionless BSFs

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Keywords

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