Research Article

Wideband quasi-yagi antenna fed by microstrip-to-slotline transition

  1. Son Xuat Ta1,
  2. Byoungchul Kim1,
  3. Hosung Choo2,
  4. Ikmo Park1,*

Article first published online: 22 NOV 2011

DOI: 10.1002/mop.26504

Issue

Microwave and Optical Technology Letters

Microwave and Optical Technology Letters

Volume 54, Issue 1, pages 150–153, January 2012

Additional Information

How to Cite

Ta, S. X., Kim, B., Choo, H. and Park, I. (2012), Wideband quasi-yagi antenna fed by microstrip-to-slotline transition. Microw. Opt. Technol. Lett., 54: 150–153. doi: 10.1002/mop.26504

Author Information

  1. 1

    School of Electrical and Computer Engineering, Ajou University, 5 Woncheon-dong, Youngtong-gu, Suwon 443-749, Korea

  2. 2

    School of Electronic and Electrical Engineering, Hongik University, 72-1 Sangsu-dong, Mapo-gu, Seoul 121-791, Korea

*School of Electrical and Computer Engineering, Ajou University, 5 Woncheon-dong, Youngtong-gu, Suwon 443-749, Korea

Publication History

  1. Issue published online: 22 NOV 2011
  2. Article first published online: 22 NOV 2011
  3. Manuscript Received: 19 MAR 2011

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Keywords:

  • quasi-Yagi antenna;
  • wideband antenna;
  • slotline transition

Abstract

This letter presents a wideband quasi-Yagi antenna fed by a microstrip-to-slotline transition. The transition consists of a microstrip radial stub and slot radial stub, both at 90° but with different radii, to achieve wideband impedance matching. The antenna has a measured fractional bandwidth of approximately 46% (4.64–7.42 GHz) for a −10 dB reflection coefficient and a flat gain of 6.0–6.75 dBi with a front-to-back ratio and cross-polarization level better than 17 and −15 dB, respectively, across the bandwidth. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:150–153, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26504

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