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Subject

Design and Fabrication of Ultrawideband Spinning Direction Finding Antenna for Airborne Applications
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항공용 초광대역 회전 방향 탐지 안테나 설계 및 제작

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Type
Academic journal
Author
Jeeheung Kim (국방과학연구소) Hongkyun Ryu (국방과학연구소) Young-Ju Park (국방과학연구소) Byungnam Lee (국방과학연구소)
Journal
Korea Electromagnetic Engineering Society The Journal of Korean Institute of Electromagnetic Engineering and Science Vol.29 No.4(Wn.251) KCI Accredited Journals
Published
2018.4
Pages
320 - 323 (4page)

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Design and Fabrication of Ultrawideband Spinning Direction Finding Antenna for Airborne Applications
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Herein, an ultrawideband spinning direction finding (DF) antenna was designed and fabricated for airborne applications. The proposed antenna is designed by dividing the low-band (UHF–L band) and high-band (S–Ka band) antennas to cover the ultrawideband frequency range (UHF–Ka band). For the high-band antenna, an LPDA antenna fed offset-parabolic-reflector antenna is applied. In the low-band antenna, two LPDA antenna elements are arrayed in front of the reflector of the high-band antenna without increasing to the full antenna size. The low- and high-band gains of the fabricated antenna were measured as 8.76 ㏈i and 24.55 ㏈i on average, respectively. The antenna was fabricated with the dimensions of 437 ㎜ in diameter and 358 ㎜ in height. Consequently, we confirmed that the designed antenna is appropriate for the spinning DF antenna in terms of the affordable size for installing on an airplane, as well as the high gain and narrow beamwidth.

Contents

요약
Abstract
Ⅰ. 서론
Ⅱ. 초광대역 회전 방향 탐지 안테나 설계
Ⅲ. 시뮬레이션 및 측정 결과
Ⅳ. 결론
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UCI(KEPA) : I410-ECN-0101-2018-427-002101500