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논문 기본 정보

자료유형
학술저널
저자정보
Peerasan Khamsalee (Suranaree University of Technology) Piyaporn Mesawad (Suranaree University of Technology) Rangsan Wongsan (Suranaree University of Technology)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.20 No.3
발행연도
2020.7
수록면
221 - 233 (13page)

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초록· 키워드

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This paper proposes the gain enhancement of dual-band and dual-polarized asymmetric horn antenna for the secondary radar system using hybrid metamaterial techniques. The hybrid metamaterial is comprised of the structures of woodpile electromagnetic bandgap (EBG) for gain enhancement of the primary main beam of the radar system at the operating frequency of 1,300 MHz with horizontal polarization; and the wire medium structure that is placed beside the EBG structure for gain improvement of the identification friend or foe (IFF) main beam, which is operated at the center frequency of 1,060 MHz with vertical polarization. Meanwhile, the cooperated structures have to function to control the directions of the primary and IFF main beams retaining at 0° and 6°, respectively, too. When the hybrid metamaterial structure is placed at the front of an asymmetric horn’s aperture, with suitable parameters and optimized spacing, it is found to increase the gains of the two beams compared to the single asymmetric horn around 3 dB and retain the directions of original main beams. The comparison of the results between simulation and measurement, such as the reflected power (S11), gain, and radiation patterns, are in good agreement.

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Abstract
I. INTRODUCTION
II. HORN ANTENNA AND HYBRID METAMATERIAL CONFIGURATIONS
III. SIMULATED RESULTS AND DISCUSSIONS
IV. MEASURED RESULTS AND DISCUSSIONS
V. HORN ANTENNA AND HYBRID METAMATERIAL WITH REFLECTOR
VI. CONCLUSION
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