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http://dx.doi.org/10.7471/ikeee.2020.24.2.372

A Study on Characteristics of the Twin Tree Array Structure of the Triangular Patch Array Antenna  

Chang, Tae-Soon (Dept. of Information and Communication Engineering, Seoil University)
Kang, Sang-Won (Dept. of Information and Communication Engineering, Seoil University)
Publication Information
Journal of IKEEE / v.24, no.2, 2020 , pp. 372-377 More about this Journal
Abstract
This paper is based on the triangular inset patch antenna as the basic structure, and the array structure is the twin tree form to improve the antenna's main lobe gain and reduce the side lobe gain. A twin tree structure was implemented by placing two identical trees of 2-4-6 arrays of triangular inset patches side by side. The parametric analysis confirmed that the gap between tree structures arranged side by side is most effective for impedance matching. The fabricated antenna has a gain of 16.74 dBi at 24.15 GHz, and the beam width of the main lobe is 22° in the E-plane and 6° in the H-plane. The antenna size was 125 mm × 50 mm, and a Taconic TLC substrate with a dielectric constant of 3.2 was used. Although the main lobe gain is improved over the twin tree structure, The directivity in the beam pattern due to the mutual interference of the two tree array structure can be improved.
Keywords
patch array antenna; triangular patch; twin tree array structure; side lobe;
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Times Cited By KSCI : 2  (Citation Analysis)
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