Investigation of beam scanning in reflectarray using tunable elements

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Miniaturized and integrated high performance (multi-standard, multi-band) antenna systems, development of novel intelligent (adaptive) and reconfigurable antenna array structures, flexible antenna systems, and conformal structures are among the key enabling technologies for future generation wireless information systems and sensor networks. Recently, antenna engineers and scientists have become more interested in the Millimeter Wave (MMW) bands for future broadband commercial communications. MMW systems are the next generation of wireless technology that can provide up to multi-Gbps wireless connectivity for short distances between electronic devices. MMW imaging has also become an active field of research due to the combined features of high resolution and penetration at MMW band. It has potential applications in public security and non-invasive parcel inspection.