The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Radiation Characteristics of Log-Periodic Bent Dipole Antennas

대수주기 벤트 다이폴 안테나의 복사특성

  • 최학근 (단국대학교 전자컴퓨터학부) ;
  • 김선표 (단국대학교 전자컴퓨터학부) ;
  • 임성빈 (단국대학교 전자컴퓨터학부)
  • Published : 2003.11.01
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Abstract

In this paper Log-Periodic Bent Dipole Antenna(LPBDA), which is composed of bent dipole elements instead of dipole elements, is proposed to reduce the size of Log-Periodic Dipole Antenna(LPDA). LPBDA for the operating frequency band of 1 ㎓∼3 ㎓ is designed and its radiation characteristics are analyzed by the moment method, and compared with radiation characteristics of LPDA. It is shown that although LPBDA decreases in size by about 20 %, radiation characteristics of LPBDA are similar to radiation characteristics of LPDA. Calculated results show good agreement with measured results.

본 논문에서는 대수주기 다이폴 안테나(LPDA: Log-Periodic Dipole Antennas)의 크기를 줄이기 위해 다이폴 소자를 벤트 다이폴 소자로 대체한 대수주기 벤트 다이폴 안테나(LPBDA: Log-Periodic Bent Dipole Antennas)를 제안하였다. 1 ㎓∼3 ㎓ 사이에서 동작하는 LPBDA를 설계하고 모멘트법을 이용하여 복사특성을 해석하여 LPDA의 특성과 비교 검토하였다. 그 결과 본 논문에서 제시한 LPBDA는 다이폴 소자의 길이를 약 20% 줄이면서도 복사특성이 LPDA와 비교하여 거의 차이가 없는 것으로 나타났으며, 제작 측정한 LPBDA의 특성도 계산 결과에 근접했다.

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References

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