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Design of a Planar LPDA Antenna with Light-Weight Supporting Structure for Installing on an Aircraft

항공기 탑재용 경량화 지지 구조를 갖는 평면 LPDA 안테나 설계

Park, Young-Ju;Park, Dong-Chul
박영주;박동철

  • Received : 2015.12.30
  • Accepted : 2016.03.03
  • Published : 2016.03.31

Abstract

This paper proposes a planar Log-Periodic Dipole Array(LPDA) antenna with light-weight supporting structure for installing on an aircraft. The proposed antenna is designed by applying a planar skeleton supporting structure that has light-weight for an aircraft and is capable of withstanding structural vibration. The material of the planar skeleton supporting structure is a Polyether ether ketone(Peek) which has excellent characteristics on strength and temperature. The proposed antenna is fabricated by attaching the radiating elements of the LPDA on both sides of the supporting structure. The changed input impedance due to the dielectric material of the supporting structure was compensated for by controlling the distance and length of several radiating elements. The 10-dB return loss bandwidths of the designed planar LPDA antenna with light-weight supporting structure are obtained as 0.4~3.1 GHz(7.3:1) in the simulation and 0.41~3.5 GHz(8.2:1) in the measurement. The average gains in 0.5~3 GHz band are 6.77 dBi in the simulation and 6.55 dBi in the measurement. Therefore, we confirm that the designed antenna is appropriate to be installed on an aircraft due to its light-weight structure and wideband directional radiation characteristics.

Keywords

LPDA Antenna;Planar Antenna;Aircraft Installation;Skeleton Supporting Structure

References

  1. C. A. Balanis, Antenna Theory Analysis and Design 3rd Ed., Wiley Interscience, pp. 619-637, 2005.
  2. R. Pantoja, A. Sapienza, and F. M. Filho, "A microwave planar log-periodic dipole array antenna", IEEE Trans. on Antennas Propag. vol. 35, no. 10, pp. 1176-1178, Oct. 1987. https://doi.org/10.1109/TAP.1987.1143990
  3. 최학근, 김선표, 임성빈, "대수 주기 벤트 다이폴 안테나의복사특성", 한국전자파학회논문지, 14(11), pp. 1207- 1215, 2003년 11월.
  4. 엄선용, 최학근, "대수 주기 칸토어 다이폴 안테나의 복사특성", 한국전자파학회논문지, 19(3), pp. 321-328, 2008년 3월.
  5. Ga A. Casula, P. Maxia, Gmontisci, G. Mazzarella, and F. Gaudiomonte, "A printed LPDA fed by a coplanar waveguide for broadband applications", IEEE Antennas and Wireless Proga. Lett., vol. 12, pp. 1232-1235, 2013. https://doi.org/10.1109/LAWP.2013.2283088
  6. 박영주, 박동철, "평면형 광대역 LPDA 안테나 설계", 한국군사과학기술학회 종합학술대회, pp. 937-938, 2014년 6월.
  7. R. Carrel, "Analysis and design of the log-periodic dipole antennas", Ph.D. dissertation, University of Illinois, Urbana, IL, USA, 1961.
  8. 함형준, 유홍균, 박범준, 박영주, 이규송, 우종명, "대수주기 다이폴 배열 안테나의 소형화 연구", 한국전자파학회논문지, 25(7), pp. 709-720, 2014년 7월.

Acknowledgement

Grant : BK21플러스

Supported by : 충남대학교