Abstract
Recently, the concept of partially reflecting surface (PRS) with positive reflection phase gradients has been proposed for the design of wideband cavity antennas. In this work, we numerically and experimentally implemented this idea and demonstrated a broadband and highly directive Fabry-Perot cavity antenna (FPCA) with dual layer PRS at microwaves. Good performance of impedance matching bandwidth (S 11 < −10 dB), and a peak directivity of about 17 dB in simulation and less in measurements at around 10 GHz were achieved.
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