A metasurface lens-based wireless power system enhances efficiency for UAVs by maintaining consistent energy delivery despite alignment or angle changes.

In order to achieve equal beamwidth at 94 GHz and 237 GHz, the focal point of the reflector antenna is optimized, and the beamwidth at 237 GHz can be broadened. A prototype of the dual-band antenna is ...

Moreover, the antenna obtains better port isolation (>27 dB), higher gain (9.6±1.4 dBi), front-to-back ratio(>18 dB) and a beamwidth of 57.5±7.5° in the desired bandwidth range. The antenna can be ...