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http://dx.doi.org/10.5515/KJKIEES.2008.19.2.207

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

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)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.2, 2008 , pp. 207-213 More about this Journal
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.
Keywords
Quasi-Yagi; Antenna Array; Broadband Balun; Coplanar Stripline(CPS); Planar Antenna;
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