A single varactor-tuned element is investigated as effective solution for the realization of reconfigurable reflectarray antennas. The\r\nproposed configuration is successfully implemented for the design of an X-band reflectarray prototype of 3 Ã?â?? 15 radiators. A\r\ndedicated electronic control board is designed as an integral part of the antenna. Good performances in terms of beam-scanning\r\ncapabilities are obtained from measurements.
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