Highly-selective rf duplexers using multi-resonant junctions

Dakotah J. Simpson; Roberto Gomez-Garcia; Dimitra Psychogiou

doi:10.1109/RWS.2019.8714516

Highly-selective rf duplexers using multi-resonant junctions

Dakotah J. Simpson
, Roberto Gomez-Garcia
, Dimitra Psychogiou

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

Abstract

This paper reports on a simple RF design methodology for the realization of RF duplexers with quasi-elliptic-type filtering channels. It is based on Nth-order in-line bandpass filters (BPF) that are connected to the duplexer input through a multi-resonant junction that introduces three additional transmission zeros (TZs) and two in-band poles. Whereas the TZs are present in both channels, the poles are shared between them. As such, a quasi-elliptic-type BPF response is obtained in each channel that is shaped by N+1 poles and three TZs. As an important advantage to be highlighted, the aforementioned response is obtained without the use of cross couplings. For practical validation, a third-order (N=2) microstrip prototype with channels set at 2.14 and 2.84 GHz was designed, manufactured, and measured.

Original language	English
Title of host publication	2019 IEEE Radio and Wireless Symposium, RWS 2019
Publisher	IEEE Computer Society
ISBN (Electronic)	9781538659441
DOIs	https://doi.org/10.1109/RWS.2019.8714516
Publication status	Published - 14 May 2019
Externally published	Yes
Event	2019 IEEE Radio and Wireless Symposium, RWS 2019 - Orlando, United States Duration: 20 Jan 2019 → 23 Jan 2019

Publication series

Name	IEEE Radio and Wireless Symposium, RWS
ISSN (Print)	2164-2958
ISSN (Electronic)	2164-2974

Conference

Conference	2019 IEEE Radio and Wireless Symposium, RWS 2019
Country/Territory	United States
City	Orlando
Period	20/01/19 → 23/01/19

Keywords

Bandpass filter (bpf)
Duplexer
Multiplexer
Planar duplexer
Transmission zero (tz)

Access to Document

10.1109/RWS.2019.8714516

Cite this

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title = "Highly-selective rf duplexers using multi-resonant junctions",

abstract = "This paper reports on a simple RF design methodology for the realization of RF duplexers with quasi-elliptic-type filtering channels. It is based on Nth-order in-line bandpass filters (BPF) that are connected to the duplexer input through a multi-resonant junction that introduces three additional transmission zeros (TZs) and two in-band poles. Whereas the TZs are present in both channels, the poles are shared between them. As such, a quasi-elliptic-type BPF response is obtained in each channel that is shaped by N+1 poles and three TZs. As an important advantage to be highlighted, the aforementioned response is obtained without the use of cross couplings. For practical validation, a third-order (N=2) microstrip prototype with channels set at 2.14 and 2.84 GHz was designed, manufactured, and measured.",

keywords = "Bandpass filter (bpf), Duplexer, Multiplexer, Planar duplexer, Transmission zero (tz)",

author = "Simpson, \{Dakotah J.\} and Roberto Gomez-Garcia and Dimitra Psychogiou",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE Radio and Wireless Symposium, RWS 2019 ; Conference date: 20-01-2019 Through 23-01-2019",

year = "2019",

month = may,

day = "14",

doi = "10.1109/RWS.2019.8714516",

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T1 - Highly-selective rf duplexers using multi-resonant junctions

AU - Simpson, Dakotah J.

AU - Gomez-Garcia, Roberto

AU - Psychogiou, Dimitra

PY - 2019/5/14

Y1 - 2019/5/14

N2 - This paper reports on a simple RF design methodology for the realization of RF duplexers with quasi-elliptic-type filtering channels. It is based on Nth-order in-line bandpass filters (BPF) that are connected to the duplexer input through a multi-resonant junction that introduces three additional transmission zeros (TZs) and two in-band poles. Whereas the TZs are present in both channels, the poles are shared between them. As such, a quasi-elliptic-type BPF response is obtained in each channel that is shaped by N+1 poles and three TZs. As an important advantage to be highlighted, the aforementioned response is obtained without the use of cross couplings. For practical validation, a third-order (N=2) microstrip prototype with channels set at 2.14 and 2.84 GHz was designed, manufactured, and measured.

AB - This paper reports on a simple RF design methodology for the realization of RF duplexers with quasi-elliptic-type filtering channels. It is based on Nth-order in-line bandpass filters (BPF) that are connected to the duplexer input through a multi-resonant junction that introduces three additional transmission zeros (TZs) and two in-band poles. Whereas the TZs are present in both channels, the poles are shared between them. As such, a quasi-elliptic-type BPF response is obtained in each channel that is shaped by N+1 poles and three TZs. As an important advantage to be highlighted, the aforementioned response is obtained without the use of cross couplings. For practical validation, a third-order (N=2) microstrip prototype with channels set at 2.14 and 2.84 GHz was designed, manufactured, and measured.

KW - Bandpass filter (bpf)

KW - Duplexer

KW - Multiplexer

KW - Planar duplexer

KW - Transmission zero (tz)

UR - https://www.scopus.com/pages/publications/85068724776

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DO - 10.1109/RWS.2019.8714516

M3 - Conference proceeding

AN - SCOPUS:85068724776

T3 - IEEE Radio and Wireless Symposium, RWS

BT - 2019 IEEE Radio and Wireless Symposium, RWS 2019

PB - IEEE Computer Society

T2 - 2019 IEEE Radio and Wireless Symposium, RWS 2019

Y2 - 20 January 2019 through 23 January 2019

ER -

Highly-selective rf duplexers using multi-resonant junctions

Abstract

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Keywords

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