Balanced and balun diplexers designed using center-grounded uniform-impedance resonators

Ching Her Lee, Chung I.G. Hsu, Pi Hung Wen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A balanced diplexer and a balun diplexer, both with high isolation, are proposed in this article. First, a balanced bandpass filter (BPF) operating in GSM (with a center frequency of 1.92 GHz) and the other in WLAN (with a center frequency of 2.45 GHz) were designed using ordinary uniform-impedance resonators (UIRs) and center-grounded UIRs. Next, the two balanced BPFs were combined through two T-junctions to form a six-port balanced diplexer. Finally, a five-port balun diplexer was obtained by removing from the balanced diplexer one of the two T-junctions along with the microstrip feeding lines connected to it and by carefully adjusting the structural dimensions of the other T-junction. A satisfactory agreement is validated between simulated and measured results.

Original languageEnglish
Pages (from-to)555-559
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume56
Issue number3
DOIs
Publication statusPublished - 2014 Mar 1

Fingerprint

diplexers
Resonators
resonators
impedance
Global system for mobile communications
Bandpass filters
Wireless local area networks (WLAN)
bandpass filters
isolation
adjusting

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{b975468a436f4a6695aaa585cba31296,
title = "Balanced and balun diplexers designed using center-grounded uniform-impedance resonators",
abstract = "A balanced diplexer and a balun diplexer, both with high isolation, are proposed in this article. First, a balanced bandpass filter (BPF) operating in GSM (with a center frequency of 1.92 GHz) and the other in WLAN (with a center frequency of 2.45 GHz) were designed using ordinary uniform-impedance resonators (UIRs) and center-grounded UIRs. Next, the two balanced BPFs were combined through two T-junctions to form a six-port balanced diplexer. Finally, a five-port balun diplexer was obtained by removing from the balanced diplexer one of the two T-junctions along with the microstrip feeding lines connected to it and by carefully adjusting the structural dimensions of the other T-junction. A satisfactory agreement is validated between simulated and measured results.",
author = "Lee, {Ching Her} and Hsu, {Chung I.G.} and Wen, {Pi Hung}",
year = "2014",
month = "3",
day = "1",
doi = "10.1002/mop.28138",
language = "English",
volume = "56",
pages = "555--559",
journal = "Microwave and Optical Technology Letters",
issn = "0895-2477",
publisher = "John Wiley and Sons Inc.",
number = "3",

}

Balanced and balun diplexers designed using center-grounded uniform-impedance resonators. / Lee, Ching Her; Hsu, Chung I.G.; Wen, Pi Hung.

In: Microwave and Optical Technology Letters, Vol. 56, No. 3, 01.03.2014, p. 555-559.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Balanced and balun diplexers designed using center-grounded uniform-impedance resonators

AU - Lee, Ching Her

AU - Hsu, Chung I.G.

AU - Wen, Pi Hung

PY - 2014/3/1

Y1 - 2014/3/1

N2 - A balanced diplexer and a balun diplexer, both with high isolation, are proposed in this article. First, a balanced bandpass filter (BPF) operating in GSM (with a center frequency of 1.92 GHz) and the other in WLAN (with a center frequency of 2.45 GHz) were designed using ordinary uniform-impedance resonators (UIRs) and center-grounded UIRs. Next, the two balanced BPFs were combined through two T-junctions to form a six-port balanced diplexer. Finally, a five-port balun diplexer was obtained by removing from the balanced diplexer one of the two T-junctions along with the microstrip feeding lines connected to it and by carefully adjusting the structural dimensions of the other T-junction. A satisfactory agreement is validated between simulated and measured results.

AB - A balanced diplexer and a balun diplexer, both with high isolation, are proposed in this article. First, a balanced bandpass filter (BPF) operating in GSM (with a center frequency of 1.92 GHz) and the other in WLAN (with a center frequency of 2.45 GHz) were designed using ordinary uniform-impedance resonators (UIRs) and center-grounded UIRs. Next, the two balanced BPFs were combined through two T-junctions to form a six-port balanced diplexer. Finally, a five-port balun diplexer was obtained by removing from the balanced diplexer one of the two T-junctions along with the microstrip feeding lines connected to it and by carefully adjusting the structural dimensions of the other T-junction. A satisfactory agreement is validated between simulated and measured results.

UR - http://www.scopus.com/inward/record.url?scp=84893402811&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893402811&partnerID=8YFLogxK

U2 - 10.1002/mop.28138

DO - 10.1002/mop.28138

M3 - Article

AN - SCOPUS:84893402811

VL - 56

SP - 555

EP - 559

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

SN - 0895-2477

IS - 3

ER -