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Time domain analysis of direct-feed biconical antenna for antenna calibration and EMC measurement

Sapuan, Syarfa Zahirah and Mohd Jenu, Mohd Zarar (2016) Time domain analysis of direct-feed biconical antenna for antenna calibration and EMC measurement. In: 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 11 - 13 December 2016, Langkawi, Kedah.

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The direct-feed biconical antenna where no balanced to unbalanced network (BALUN) is needed has been used in Antenna calibration and Electromagnetic Compatibility (EMC). It has optimized dimensions using mathematical method to match 50 Ω systems between 200 MHz and 2 GHz. Antenna Factor has been determined for proposed direct feed biconical antenna. However, the analytical results have deviation up to 5dB at 300 MHz compared with simulation and measurement results. This is predicted due to the gap between two cones in simulation and measurement. In analytical, assumption has been made that the gap between two cones is ignored. Therefore, time domain analysis using a time gating method has been used to analyse the effect between two cones. The results shows that the gap between two cones and the connector that been used in both simulation and measurement that was not taken into consideration in the AF evaluation in the analytical method could affect the input impedance and eventually give high uncertainty to the AF especially at low frequency.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Biconical antenna; time domain analysis; time gating; gap between cone; antenna calibration
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6540-6571 Radio
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 13 Aug 2018 03:31
Last Modified: 13 Aug 2018 03:31
URI: http://eprints.uthm.edu.my/id/eprint/10014
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