Split-Type Input-Reflectionless Multiband Filters

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

doi:10.1109/LMWC.2018.2868091

Split-Type Input-Reflectionless Multiband Filters

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

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

Abstract

Split-type multiband bandpass filters (BPFs) and bandstop filters (BSFs) with input-reflectionless capabilities are reported in this letter. In the multiband BPF case, they consist of a duplexing network with a split-type multiband BPF channel - main channel - and its complementary resistively terminated multiband BSF channel - auxiliary channel - that absorbs the input-signal energy that is not transmitted by the overall filter. The multiband BSF counterpart is obtained from the latter by interchanging the roles of the main and auxiliary channels. The operational foundations, theoretical design rules, and synthesis examples of the devised split-type input-reflectionless multiband filters under a coupling-matrix-based formulation are described. Furthermore, for practical validation purposes, two microstrip prototypes corresponding to 3.85-/4.55-GHz second-order dual-band BPF and BSF circuits are constructed and measured.

Original language	English
Article number	8467336
Pages (from-to)	981-983
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	28
Issue number	11
DOIs	https://doi.org/10.1109/LMWC.2018.2868091
Publication status	Published - Nov 2018
Externally published	Yes

Keywords

5G circuit
absorptive filter
bandpass filter (BPF)
bandstop filter (BSF)
dual-band filter
microstrip filter
multiband filter
planar filter
reflectionless filter
split-type filter

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10.1109/LMWC.2018.2868091

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@article{282c44f4bdd043639433322651097f76,

title = "Split-Type Input-Reflectionless Multiband Filters",

abstract = "Split-type multiband bandpass filters (BPFs) and bandstop filters (BSFs) with input-reflectionless capabilities are reported in this letter. In the multiband BPF case, they consist of a duplexing network with a split-type multiband BPF channel - main channel - and its complementary resistively terminated multiband BSF channel - auxiliary channel - that absorbs the input-signal energy that is not transmitted by the overall filter. The multiband BSF counterpart is obtained from the latter by interchanging the roles of the main and auxiliary channels. The operational foundations, theoretical design rules, and synthesis examples of the devised split-type input-reflectionless multiband filters under a coupling-matrix-based formulation are described. Furthermore, for practical validation purposes, two microstrip prototypes corresponding to 3.85-/4.55-GHz second-order dual-band BPF and BSF circuits are constructed and measured.",

keywords = "5G circuit, absorptive filter, bandpass filter (BPF), bandstop filter (BSF), dual-band filter, microstrip filter, multiband filter, planar filter, reflectionless filter, split-type filter",

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

note = "Publisher Copyright: {\textcopyright} 2001-2012 IEEE.",

year = "2018",

month = nov,

doi = "10.1109/LMWC.2018.2868091",

language = "English",

volume = "28",

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T1 - Split-Type Input-Reflectionless Multiband Filters

AU - Gomez-Garcia, Roberto

AU - Munoz-Ferreras, Jose Maria

AU - Psychogiou, Dimitra

PY - 2018/11

Y1 - 2018/11

N2 - Split-type multiband bandpass filters (BPFs) and bandstop filters (BSFs) with input-reflectionless capabilities are reported in this letter. In the multiband BPF case, they consist of a duplexing network with a split-type multiband BPF channel - main channel - and its complementary resistively terminated multiband BSF channel - auxiliary channel - that absorbs the input-signal energy that is not transmitted by the overall filter. The multiband BSF counterpart is obtained from the latter by interchanging the roles of the main and auxiliary channels. The operational foundations, theoretical design rules, and synthesis examples of the devised split-type input-reflectionless multiband filters under a coupling-matrix-based formulation are described. Furthermore, for practical validation purposes, two microstrip prototypes corresponding to 3.85-/4.55-GHz second-order dual-band BPF and BSF circuits are constructed and measured.

AB - Split-type multiband bandpass filters (BPFs) and bandstop filters (BSFs) with input-reflectionless capabilities are reported in this letter. In the multiband BPF case, they consist of a duplexing network with a split-type multiband BPF channel - main channel - and its complementary resistively terminated multiband BSF channel - auxiliary channel - that absorbs the input-signal energy that is not transmitted by the overall filter. The multiband BSF counterpart is obtained from the latter by interchanging the roles of the main and auxiliary channels. The operational foundations, theoretical design rules, and synthesis examples of the devised split-type input-reflectionless multiband filters under a coupling-matrix-based formulation are described. Furthermore, for practical validation purposes, two microstrip prototypes corresponding to 3.85-/4.55-GHz second-order dual-band BPF and BSF circuits are constructed and measured.

KW - 5G circuit

KW - absorptive filter

KW - bandpass filter (BPF)

KW - bandstop filter (BSF)

KW - dual-band filter

KW - microstrip filter

KW - multiband filter

KW - planar filter

KW - reflectionless filter

KW - split-type filter

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DO - 10.1109/LMWC.2018.2868091

M3 - Article

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SN - 1531-1309

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SP - 981

EP - 983

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 11

M1 - 8467336

ER -

Split-Type Input-Reflectionless Multiband Filters

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Keywords

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