EMI Dipole Antennas with Forced Resonance by Reactance Loading for Frequencies below 80 MHz(Regular Section)

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概要

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• This paper presents the basic characteristics of a forced resonant type EMI dipole antenna for frequencies below 80 MHz in which two reactance elements are used for the impedance matching at the feed point. The input impedance of the short dipole less than half-wavelength is controlled by the properly determined loading position and the value of loading reactance. The integral equation for unknown current distribution is solved by Galerkin's method of moments with piecewise sinusoidal functions. The numerical results show that the small-sized EMI dipole antenna with lower antenna factors for frequencies below 80 MHz can be realized by the reactance loading. In case the proposed center driven small-sized EMI dipole antenna with 0.3λ length is loaded c = 0.133λ from the center, the input impedance is matched at feed line with 50Ω and hence the antenna has lower factors in the frequency range of 30 to 80 MHz. Also the normalized site attenuation characteristics are presented for the forced resonant type EMI dipole antenna.

• 社団法人電子情報通信学会の論文
• 2002-11-01

著者

• Kim Ki-chai

  The Faculty Of The School Of Electrical Engineering And Computer Science Yeungnam University

関連論文

• EMI Dipole Antennas with Forced Resonance by Reactance Loading for Frequencies below 80 MHz(Regular Section)

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