Wideband 180° phase shifter using parallel-coupled three-line

Hong Jib Yoon, Byung-Wook Min

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this letter, a wideband 180° phase shifter using a parallel-coupled three-line is demonstrated. The proposed phase shifter consists of a shorted coupled line and transmission line with shorted stubs. The bandwidth of the phase shifter is increased by a high coupling factor of the coupled line. When considering a coupling factor of 1, the bandwidth is infinite and the phase error is zero. Therefore, we adopted a parallel-coupled three-line to ensure a high coupling factor. Given a limited coupling factor, the transmission line impedance is optimized for the widest bandwidth of the return loss. The designed 180° phase shifter exhibits a return loss of less than -15 dB and a maximum phase error of less than 5° in the 1.14-2.79-GHz range and its fractional bandwidth is 83.9%.

Original languageEnglish
Article number8599040
Pages (from-to)89-91
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume29
Issue number2
DOIs
Publication statusPublished - 2019 Feb 1

Fingerprint

Phase shifters
broadband
bandwidth
Bandwidth
phase error
transmission lines
Electric lines
impedance

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{9cf807d7eeee4cd5aedeef3aed4ecf7b,
title = "Wideband 180° phase shifter using parallel-coupled three-line",
abstract = "In this letter, a wideband 180° phase shifter using a parallel-coupled three-line is demonstrated. The proposed phase shifter consists of a shorted coupled line and transmission line with shorted stubs. The bandwidth of the phase shifter is increased by a high coupling factor of the coupled line. When considering a coupling factor of 1, the bandwidth is infinite and the phase error is zero. Therefore, we adopted a parallel-coupled three-line to ensure a high coupling factor. Given a limited coupling factor, the transmission line impedance is optimized for the widest bandwidth of the return loss. The designed 180° phase shifter exhibits a return loss of less than -15 dB and a maximum phase error of less than 5° in the 1.14-2.79-GHz range and its fractional bandwidth is 83.9{\%}.",
author = "Yoon, {Hong Jib} and Byung-Wook Min",
year = "2019",
month = "2",
day = "1",
doi = "10.1109/LMWC.2018.2886469",
language = "English",
volume = "29",
pages = "89--91",
journal = "IEEE Microwave and Wireless Components Letters",
issn = "1531-1309",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",

}

Wideband 180° phase shifter using parallel-coupled three-line. / Yoon, Hong Jib; Min, Byung-Wook.

In: IEEE Microwave and Wireless Components Letters, Vol. 29, No. 2, 8599040, 01.02.2019, p. 89-91.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Wideband 180° phase shifter using parallel-coupled three-line

AU - Yoon, Hong Jib

AU - Min, Byung-Wook

PY - 2019/2/1

Y1 - 2019/2/1

N2 - In this letter, a wideband 180° phase shifter using a parallel-coupled three-line is demonstrated. The proposed phase shifter consists of a shorted coupled line and transmission line with shorted stubs. The bandwidth of the phase shifter is increased by a high coupling factor of the coupled line. When considering a coupling factor of 1, the bandwidth is infinite and the phase error is zero. Therefore, we adopted a parallel-coupled three-line to ensure a high coupling factor. Given a limited coupling factor, the transmission line impedance is optimized for the widest bandwidth of the return loss. The designed 180° phase shifter exhibits a return loss of less than -15 dB and a maximum phase error of less than 5° in the 1.14-2.79-GHz range and its fractional bandwidth is 83.9%.

AB - In this letter, a wideband 180° phase shifter using a parallel-coupled three-line is demonstrated. The proposed phase shifter consists of a shorted coupled line and transmission line with shorted stubs. The bandwidth of the phase shifter is increased by a high coupling factor of the coupled line. When considering a coupling factor of 1, the bandwidth is infinite and the phase error is zero. Therefore, we adopted a parallel-coupled three-line to ensure a high coupling factor. Given a limited coupling factor, the transmission line impedance is optimized for the widest bandwidth of the return loss. The designed 180° phase shifter exhibits a return loss of less than -15 dB and a maximum phase error of less than 5° in the 1.14-2.79-GHz range and its fractional bandwidth is 83.9%.

UR - http://www.scopus.com/inward/record.url?scp=85061789072&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061789072&partnerID=8YFLogxK

U2 - 10.1109/LMWC.2018.2886469

DO - 10.1109/LMWC.2018.2886469

M3 - Article

VL - 29

SP - 89

EP - 91

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

SN - 1531-1309

IS - 2

M1 - 8599040

ER -