Abstract:This paper presents a single-layer delay-lines based reflectarray for X-band applications. The proposed design contains an octagonal-shaped patch with T-shape delay-lines. A phase range of 500°is realized by using T-shape delay-lines. A stable phase range is achieved for TE and TM modes at 0°, 15°and 30°incident angles. An equivalent circuit model is used to investigate the resonant property of the proposed reflectarray unit element. A 21 × 21 elements reflectarray is designed, fabricated and measured on an FR… Show more
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