Taper Design of Vivaldi Antenna by Butterworth Method
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 371
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شناسه ملی سند علمی:
JR_SPRE-1-4_006
تاریخ نمایه سازی: 2 مهر 1398
چکیده مقاله:
In this paper a method to design tapered slot antenna (TSA), a member of ultra-wideband (UWB) antenna, is presented. The proposed method is related to impedance matching of input and free space intrinsic impedance by Butterworth method. By this method, curve fitting converts step impedance to optimized curve and this optimized curve and its symmetry create Vivaldi antenna. The fractional bandwidth (FBW) of the antenna by the proposed method is 155% which is more than the methods of Chebyshev and attenuation. A prototype of this antenna is fabricated and simulation and measurement results are in good agreement.
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نویسندگان
Mahdi Ghoorchian
South Tehran Branch, Islamic Azad University
Nasrin Amiri
South Tehran Branch, Islamic Azad University