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Design of a Ku-Band Quasi-Yagi Antenna Array Using an Ultra-Wideband Balun

초광대역 발룬을 이용한 Ku 대역 Quasi-Yagi 배열 안테나 설계

  • Woo, Dong-Sik (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Young-Gon (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Cho, Young-Ki (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Kang-Wook (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • 우동식 (경북대학교 전자전기컴퓨터학부) ;
  • 김영곤 (경북대학교 전자전기컴퓨터학부) ;
  • 조영기 (경북대학교 전자전기컴퓨터학부) ;
  • 김강욱 (경북대학교 전자전기컴퓨터학부)
  • Published : 2008.02.29

Abstract

A simplified design procedure for quasi-Yagi antenna arrays using an ultra-wideband balun is presented. The proposed antenna design procedure is based on the simple impedance matching among antenna components: i.e., balun, feed, and antenna This new broadband and high gain antenna array is possible due to the ultra-wideband performance of the balun. As design examples, wideband $1\times4$ and $1\times8$ quasi-Yagi antenna arrays are successfully designed and implemented in Ku-band with frequency bandwidths of about 50 % and antenna gains of 9$\sim$10 dBi and 11$\sim$12 dBi, respectively. And the simulated and measured results demonstrate wide bandwidths and good radiation properties. These antenna arrays can be applied to various phased-array and spatial power combining systems.

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