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J Electromagn Eng Sci > Volume 8(1); 2008 > Article
Journal of the Korean Institute of Electromagnetic and Science 2008;8(1):1-5.
DOI: https://doi.org/10.5515/JKIEES.2008.8.1.001   
Design of a Biconical Antenna with Cylindrical Loads for EMI Test Site Validation above 1 GHz
Sung-Sik Kong1, Jae-Hoon Choi2
1Radio Research Laboratory, Ministry of Information and Communication
2Department of Electrical and Computer Engineering, Hanyang University
Abstract
In this paper, a biconical type antenna is proposed for EMI test site validation above 1 GHz. To achieve broadband and omni-directional radiation patterns required by international standard(CISPR), the proposed antenna consists of general bicones with cylindrical loads and adopts side feeding method to minimize the influence on H-plane pattern due to feeding cable, balun, and connector. The radiation patterns of the fabricated antenna are measured and the results are compared with CISPR criteria and commercial antenna in our interest frequencies. Although the proposed antenna has a few problems in frequency range of 1 GHz to 2 GHz, it has relatively better performance than commercial antenna.
Key words: Biconical Antenna, EMI, CISPR, Site Validation, Omni-Directional Radiation Pattern

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