Multiband, Shorted, Metallic-Plate Dipole Antenna for Wi-Fi 8 and 6G Upper Mid-Band Operation

A shorted, metallic-plate dipole antenna capable of functioning in the 2.4/5/6 GHz Wi-Fi 8 bands and the 6G upper mid-band in the 7125-8400 MHz range is proposed. The antenna structure consists of symmetrical dipole arms, tuning slots, and a shorting portion, all built on a single flat metallic plate of 0.2 mm thickness and with the dimensions 12 mm × 35 mm. The dipole design can operate at the 0.5-, 1.5-, and 2.5-λ dipole resonances. The first resonant mode contributes to the lower band for 2.4 GHz operation, while the two higher-order modes form a wide frequency range of 5150-8400 MHz for 5/6 GHz Wi-Fi bands and also the 7-8 GHz range of the 6G upper mid-band. With a small width of 0.096-λ at 2.4 GHz and the antenna feeding using the small coaxial cable, various antenna-placement possibilities can be expected for practical applications inside the communication devices.