Abstract
A compensated-phase partially reflective surface (PRS) is proposed in this letter. It is used together with a metallic ground plane to form a low-profile Fabry-Pérot (FP) cavity antenna conformed on a cylindrical surface. A microstrip patch antenna is embedded inside the cavity to act as the primary feed. To validate the proposed PRS, an antenna is designed to operate at the 5.7-GHz Wi-Fi frequency. The subwavelength FP cavity with a fixed overall thickness of λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> /10 (where λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> is the free-space operating wavelength) is fabricated and measured. The impact of compensating the PRS phase is analyzed.
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