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The sub-reflectarray (SR) has been designed to act as a hyperboloidal or ellipsoidal subreflector in a dual reflector system. In this work, the specular reflection effect in SRs is investigated. By exploiting the polarization properties of different reflectarray elements, the key components of the scattered fields of the SR are separated and compared. Full-wave simulation results show that the specular...
An electronically reconfigurable reflectarray antenna (RRA) with $10\times10$ elements is presented with a detailed design procedure for an improved beam-scanning performance. The element, designed at Ku band using a simple patch structure with one PIN diode and two substrate layers, can be electronically controlled to generate two states with 180° phase difference and low reflection loss. A reflectarray...
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