A Dual-Wideband Antenna with Independent Resonances for Wi-Fi 2.4/5/6E Applications

In this letter, a dual-wideband antenna capable of covering the existing Wi-Fi bands of 2.4 GHz, 5 GHz, and the newly extended Wi-Fi 6E band (5.925~7.125 GHz) is proposed. The antenna consists of a monopole radiator combined with a feeding loop to achieve impedance matching in the 2.4 GHz band, along with an additional structure element designed to control the higher-order resonance in the 5 GHz band. By integrating these elements, the proposed monopole antenna could operate independently in multiple bands with minimal mutual influence. The measured results demonstrate bandwidths of 520 MHz and 2,275 MHz for the lower and upper bands, respectively, with radiation efficiency exceeding −4 dB across all operating bands, confirming that the antenna achieves wideband and high-efficiency performance.