Broadband millimeter-wave metasurface antenna based on interlayer coupling
With the rapid advancement of the communication technology,the demand for high-speed and high-capacity communication has become increasingly urgent.However,traditional spectrum resources were limited and struggled to meet these demands.As a result,millimeter-wave antennas have emerged as the potential solutions,which attracted significant attention.This study aimed to address the bandwidth and gain issues linked with conventional microstrip patch antennas.By incorporating a metasurface structure and enhancing interlayer coupling,a wideband millimeter-wave metasurface antenna operating in the 24-50 GHz range was designed.The metasurface was integrated into the dielectric layer using a lamination technique.The impact of the metasurface parameters on the antenna bandwidth was analyzed through simulation to optimize the antenna dimensions.Subsequently,the antenna was fabricated and tested.The simulation and measurement results demonstrate that the proposed antenna can achieve a wide bandwidth spanning 24-50 GHz,representing 52.23%increasement compared to that of traditional patch antennas.Moreover,the antenna exhibits favorable radiation characteristics and gain performance.The designed wideband millimeter-wave metasurface antenna demonstrates broad application prospects in various fields,including wideband communication and 5G technology.
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