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Iranian Journal of Electrical and Electronic Engineering، جلد ۱۹، شماره ۴، صفحات ۲۰۸۴-۲۰۸۴
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عنوان انگلیسی An Active VHF and UHF Electrically Small Horn Antenna Using Non-Foster Matching Circuit
چکیده انگلیسی مقاله In this article, an active electrically small Horn antenna for very high frequency (VHF) and ultra-high frequency (UHF) frequencies is presented. The proposed horn antenna has a height of 5 cm and a diameter of 4.28 cm which can cover 6-12 GHz without a special active circuit with the VSWR of less than 2. A Non-foster Active Adaptation Circuit is used to reduce the antenna input frequency from 164 MHz to 880 MHz. Good matching is visible between the simulation results and the measurement of the antenna reflection coefficient with the active matching circuit. The proposed structure has more than 137 % bandwidth. With the proposed active antenna, the problem of non-portability of VHF and UHF Horn antenna antennas has been solved. Finally, by analyzing the time domain, the stability of the circuit is examined, and the results of the stability test show that the system, including the antenna and the circuit, is stable. The antenna and the matching circuits are simulated by CST microwave studio and advanced design system, respectively.
کلیدواژه‌های انگلیسی مقاله Non-foster, dual-ridged Horn Antenna, VHF, UHF, small antenna.
نویسندگان مقاله | Atefeh Sohrabi
Faculty of Electrical & Computer Engineering, University of Sistan and Bluchestan, Zahedan, Iran.


| hamideh dashti
university of sistan and baluchestan


| Javad Ahmadi-shokouh
Faculty of Electrical & Computer Engineering, University of Sistan and Bluchestan, Zahedan, Iran.
نشانی اینترنتی http://ijeee.iust.ac.ir/browse.php?a_code=A-10-3771-1&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده 5-Antenna
نوع مقاله منتشر شده Research Paper
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