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논문 기본 정보

자료유형
학술저널
저자정보
Sungsik Wang (Hongik University) Sungjun Yoo (Hongik University) Junsik Park (Hanwha Systems) Hongsuk Shim (Hanwha Systems) Hosung Choo (Hongik University)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.19 No.4
발행연도
2019.10
수록면
266 - 271 (6page)

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초록· 키워드

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This article proposes the design of a coupled-fed printed dipole antenna for direction finding (DF) systems. The antenna consists of a radiating 50 angled expanded-arm printed dipole as well as a fan-shaped feeder that is located on the opposite side of the radiating dipole. The 50 angled expanded-arm structure results in a wide beam-width and broadband-matching characteristics. The more the arm angle is bent, the wider the beam-width pattern. Note that the expanded structure to the side of the dipole arm allows the wide beam-width of the radiation pattern. The printed dipole is then electromagnetically coupled with the fan-shaped feeder to obtain broadband-matching characteristics. To obtain additional broadband-matching characteristics, the circular cavity and the four-step tapered structures of the radiating printed dipole are carefully tuned by considering the coupled fields induced by the indirect feeding structure. The reflection coefficients are −14.6 ㏈ and −11.9 ㏈ at 1.575 ㎓ and 2.4 ㎓, and the boresight gains are 4.8 ㏈i and 1 ㏈i, respectively. To confirm the DF capability of the proposed antenna, the pattern of the 4×4 arrays is observed by varying the steering angle.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. PROPOSED ANTENNA DESIGN AND MEASUREMENT
Ⅲ. CONCLUSION
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