The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지

Antenna factors of short dipole antennas with roberts balun

Roberts밸런을 갖는 단축 다이폴 안테나의 안테나 인자

  • Published : 1997.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Exactly aclculated antenna factors are requeired for determining EMI levels in an actual radiated emission test. In this paper, the antenna factors of short dipole antennas above the ground plane are calculated theoretically for the antenna with Roberts balun specified ANSI C63.5 regulation. Also treated is a half-wavelength dipole antenna with Roberts balun to compare the antenna factors with those of resonant dipole antenna. In formulationof antenna factors the antenna is treated as the boundary value problem of Maxwells equations and is analyzed by the Galerkins method of moments. The balun is treated using circuit theory based on power transmission mismatch.

Keywords

References

  1. Technical Report of IEICE, EMCJ92-85 Calibration Methods of Antenna Factor of Antennas for EMI Measurement-Problems of ANSI C63.5 and Their Improvement T. Morikawa;A.Sugiura;K.Harima;T.Tejima;H.Masuzawa
  2. IEICE Trans. v.E78-B no.2 EMI Dipole Antenna Factors A. Sugiura;T. Morikawa;T. Tejima;H. Masuzawa
  3. IEICE Trans. v.J78-B-II no.11 Antenna Factors of Half-wavelength Dipole Antennas with Roberts Balun Ki-Chai Kim;S. Tokumaru
  4. ANSI C63.4
  5. Proc. Of the IRE v.45 no.12 A New Wide-Band Balun W.K.Roberts
  6. Final Report of Ministry of Science and Technology, KRISS-94-081-IR B.K.Park;J.H.Kim;J.I.Park;C.K.Kang;U.T.Kang