Analysis,Design and fabrication of a Reflectarray Antenna Using Elements with Reduced Reflection Phase Sensitivity

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In this paper a reflectarray (RA) antenna with circular aperture is analysed, designed, fabricated and measured.‎ The unit element consists of a concentric, multi-resonance circular-ring structure with variable size.‎ To reduce the phase sensitivity to manufacturing inaccuracy without dedication the 360° phase range and mitigate losses in the unit element, a modified design method is introduced by changing the outer and inner radius of the interior ring in the opposite directions.‎ Thus, this gives a good manufacturing tolerance with a high-efficiency wideband performance.‎ Test results show the maximum gain of 26.‎4 dBi at 10 GHz with 16.‎3% 1dB gain bandwidth.‎

تاریخ انتشار: 
يكشنبه, ۱۱ آذر, ۱۳۹۷ - ۱۱
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پژوهشکده فناوری ارتباطات
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گروه ارتباطات ماهواره‌ای
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انگلیسی