Contiguous-Channel Dual-Band Balanced Diplexer

Roberto Gómez-García; José María Muñoz-Ferreras; Li Yang; DImitra Psychogiou

doi:10.1109/LMWC.2019.2904396

Contiguous-Channel Dual-Band Balanced Diplexer

Roberto Gómez-García
, José María Muñoz-Ferreras
, Li Yang
, DImitra Psychogiou

University of Alcalá
University of Colorado Boulder

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

Abstract

A class of balanced dual-band planar diplexer with frequency-contiguous channels for the differential mode and high common-mode rejection is presented. It exploits double-stub-loaded filtering cells with resistors connected at the symmetry plane of the overall diplexer. In this manner, a sharp-rejection dual-band operation for each diplexer channel with transmission zeroes (TZs) at both sides of the differential-mode dual passbands is obtained. In addition, broadened common-mode suppression and low common-mode in-band input power reflection can be realized. The theoretical foundations and design guidelines for the devised dual-band differential-mode diplexer are provided. Moreover, for practical-validation purposes, a microstrip prototype with imbricated 1.51-GHz/2.41-GHz and 1.92-GHz/2.85-GHz lower and upper dual-band channels is manufactured and tested.

Original language	English
Article number	8672783
Pages (from-to)	318-320
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	29
Issue number	5
DOIs	https://doi.org/10.1109/LMWC.2019.2904396
Publication status	Published - May 2019
Externally published	Yes

Keywords

Balanced diplexer
balanced filter
common-mode suppression
differential-mode diplexer
differential-mode filter
dual-band diplexer
microstrip diplexer
planar diplexer

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10.1109/LMWC.2019.2904396

Cite this

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title = "Contiguous-Channel Dual-Band Balanced Diplexer",

abstract = "A class of balanced dual-band planar diplexer with frequency-contiguous channels for the differential mode and high common-mode rejection is presented. It exploits double-stub-loaded filtering cells with resistors connected at the symmetry plane of the overall diplexer. In this manner, a sharp-rejection dual-band operation for each diplexer channel with transmission zeroes (TZs) at both sides of the differential-mode dual passbands is obtained. In addition, broadened common-mode suppression and low common-mode in-band input power reflection can be realized. The theoretical foundations and design guidelines for the devised dual-band differential-mode diplexer are provided. Moreover, for practical-validation purposes, a microstrip prototype with imbricated 1.51-GHz/2.41-GHz and 1.92-GHz/2.85-GHz lower and upper dual-band channels is manufactured and tested.",

keywords = "Balanced diplexer, balanced filter, common-mode suppression, differential-mode diplexer, differential-mode filter, dual-band diplexer, microstrip diplexer, planar diplexer",

author = "Roberto G{\'o}mez-Garc{\'i}a and Mu{\~n}oz-Ferreras, \{Jos{\'e} Mar{\'i}a\} and Li Yang and DImitra Psychogiou",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.",

year = "2019",

month = may,

doi = "10.1109/LMWC.2019.2904396",

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volume = "29",

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T1 - Contiguous-Channel Dual-Band Balanced Diplexer

AU - Gómez-García, Roberto

AU - Muñoz-Ferreras, José María

AU - Yang, Li

AU - Psychogiou, DImitra

PY - 2019/5

Y1 - 2019/5

N2 - A class of balanced dual-band planar diplexer with frequency-contiguous channels for the differential mode and high common-mode rejection is presented. It exploits double-stub-loaded filtering cells with resistors connected at the symmetry plane of the overall diplexer. In this manner, a sharp-rejection dual-band operation for each diplexer channel with transmission zeroes (TZs) at both sides of the differential-mode dual passbands is obtained. In addition, broadened common-mode suppression and low common-mode in-band input power reflection can be realized. The theoretical foundations and design guidelines for the devised dual-band differential-mode diplexer are provided. Moreover, for practical-validation purposes, a microstrip prototype with imbricated 1.51-GHz/2.41-GHz and 1.92-GHz/2.85-GHz lower and upper dual-band channels is manufactured and tested.

AB - A class of balanced dual-band planar diplexer with frequency-contiguous channels for the differential mode and high common-mode rejection is presented. It exploits double-stub-loaded filtering cells with resistors connected at the symmetry plane of the overall diplexer. In this manner, a sharp-rejection dual-band operation for each diplexer channel with transmission zeroes (TZs) at both sides of the differential-mode dual passbands is obtained. In addition, broadened common-mode suppression and low common-mode in-band input power reflection can be realized. The theoretical foundations and design guidelines for the devised dual-band differential-mode diplexer are provided. Moreover, for practical-validation purposes, a microstrip prototype with imbricated 1.51-GHz/2.41-GHz and 1.92-GHz/2.85-GHz lower and upper dual-band channels is manufactured and tested.

KW - Balanced diplexer

KW - balanced filter

KW - common-mode suppression

KW - differential-mode diplexer

KW - differential-mode filter

KW - dual-band diplexer

KW - microstrip diplexer

KW - planar diplexer

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DO - 10.1109/LMWC.2019.2904396

M3 - Article

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SN - 1531-1309

VL - 29

SP - 318

EP - 320

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 5

M1 - 8672783

ER -

Contiguous-Channel Dual-Band Balanced Diplexer

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Keywords

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