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

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

doi:10.1002/mop.28138

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

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

Graduate Institute of Communication Engineering

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	555-559
Number of pages	5
Journal	Microwave and Optical Technology Letters
Volume	56
Issue number	3
DOIs	https://doi.org/10.1002/mop.28138
Publication status	Published - 2014 Mar 1

Fingerprint

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

Lee, C. H., Hsu, C. I. G., & Wen, P. H. (2014). Balanced and balun diplexers designed using center-grounded uniform-impedance resonators. Microwave and Optical Technology Letters, 56(3), 555-559. https://doi.org/10.1002/mop.28138

@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",

}

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 -

Access to Document

10.1002/mop.28138