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A Miniaturized Wideband 3 dB Rat-Race Coupler Utilizing Meander Lines

  • Jalil Ur Rehman Kazim
  • , Hasan Abbas
  • , Masood Ur Rehman
  • , Akram Alomainy
  • , Coskun Kocabas
  • , Elif Ozden Yenigunc
  • , Muhammad Ali Imran
  • , Qammer H. Abbasi
  • University of Glasgow
  • Queen Mary University of London
  • University of Manchester
  • Royal College of Art

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper proposes a wideband miniaturized 3 dB 180° rat-race coupler. For ease of fabrication and measurement, the operating frequency of the 180° coupler is designed from 700-960 MHz. Hence, an operating bandwidth of around 30% is achieved at the center frequency of 830 MHz. A size reduction of 95% is accomplished along with a fractional bandwidth of 30%. A meander line configuration is adopted and gaps between the lines are optimized to enhance the capacitance of the structure. The proposed design is fabricated on Rogers 4360 substrate and measured results of the prototype show good agreement with simulated results.

Original languageEnglish
Title of host publication2021 1st International Conference on Microwave, Antennas and Circuits, ICMAC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665400862
DOIs
StatePublished - 2021
Externally publishedYes
Event1st International Conference on Microwave, Antennas and Circuits, ICMAC 2021 - Islamabad, Pakistan
Duration: 21 Dec 202122 Dec 2021

Publication series

Name2021 1st International Conference on Microwave, Antennas and Circuits, ICMAC 2021

Conference

Conference1st International Conference on Microwave, Antennas and Circuits, ICMAC 2021
Country/TerritoryPakistan
CityIslamabad
Period21/12/2122/12/21

Keywords

  • 180° Rat-race Coupler
  • Miniaturized
  • Wideband

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