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http://dx.doi.org/10.5515/KJKIEES.2018.29.6.473

Study on 2×2 Subarray Antenna for Implementation of VHF Band Active Electronically Scanned Array  

Kim, Sungpeel (Department of Electronics & Computer Engineering, Hanyang University)
Han, Junyong (Hanwha Systems)
Jang, Younhui (Agency for Defense Development)
Choi, Jaehoon (Department of Electronics & Computer Engineering, Hanyang University)
Publication Information
Abstract
Herein, a $2{\times}2$ subarray antenna is designed to implement a VHF band active electronically scanned array. The Yagi-Uda antenna is used as a radiating element. The bandwidth enhancement and miniaturization of the Yagi-Uda antenna are achieved by optimizing the diameter of a driven element and the length of a director. In addition, the grid reflector is utilized to improve the front-to-back ratio(FBR) and to reduce both the wind resistance and overall system weight. The fabricated $2{\times}2$ subarray antenna fully covers the VHF target band($0.98{\sim}1.02f_c$). The measured maximum gain is 10.61 dBi and the FBR is larger than 26 dB.
Keywords
VHF Band Radar; Array Antenna; Yagi-Uda Antenna; Grid Reflector;
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Times Cited By KSCI : 1  (Citation Analysis)
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