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Antenna Factor Characteristics of EMI Dipole Antennas with Coaxial Cable Balun for Frequencies between 30 and 1,000 MHz  

Ju Chang-Hyun (Department of Electrical Engineering, Yeungnam University)
Kim Ki-Chai (Department of Electrical Engineering, Yeungnam University)
Publication Information
Abstract
This paper presents the characteristics of an antenna factor of two kinds of EMI dipole antennas with a coaxial cable balun used in the frequency range between 30 and 1,000 MHz. The integral equation for unknown current distribution is solved by the Galerkin's method of moments with piecewise sinusoidal functions. An antenna factor for EMI dipole antennas with the coaxial cable balun is derived by using the power loss concepts. We can realize two kinds of EMI dipole antennas with appropriate antenna factors in the frequency range from 30 to 1,000 MHz: 150-cm dipole length($30{\sim}300 MHz$) and 30cm dipole length($300{\sim}1,000 MHz$). To check th ε validity of the theoretical analysis, the complex antenna factor was measured using by reference antenna methods. It is shown that the calculated complex antenna factor is good agreement with experimental results.
Keywords
EMI Dipole Antennas; Antenna Factor; Reference Antenna Methods;
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Times Cited By KSCI : 1  (Citation Analysis)
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