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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v69.i13.20
pages 1137-1152

METALLIC SHIELD INFLUENCE ON THE RESONANT LENGTH OF A WIRE ANTENNA

N. N. Gorobets
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61022, Ukraine; Kharkiv National University of Radio Engineering and Electronics, 14 Nauka Ave, Kharkiv, 61166, Ukraine
N. P. Yeliseyeva
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077

ABSTRACT

The method of induced electromotive forces and the uniform geometric diffraction theory are inthe base of the algorithm developed for calculation of the input impedance of the symmetricelectric dipole located above the infinitely thin rectangular metal shield. Resonant arm length of the half-wave dipole resonant at which the reactive partof its input resistance equals to zero, is determined as a function of the dipole thickness, dimensions and shape of the shield for differentdipole-to-shield distances and dipole orientation towards the shield. It is shown that the shieldpresence results in greater shortening of the dipole resonant length than in the case of the dipolein free space.


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