A Multi-Band Sleeve Dipole Antenna for 2.4/5/6 GHz WLAN Application

The paper proposes a novel sleeve dipole antenna design that effectively covers three WiFi frequency bands with excellent radiation patterns. The antenna consists of two metal cylinders and two sleeves with different radius and lengths and has an impedance bandwidth that covers the 2.4 GHz, 5 GHz, and 6 GHz WiFi frequency bands. Notably, the antenna's radiation patterns are almost omnidirectional, while remaining stable within the working bandwidth. The antenna can operate across multiple bands, providing greater flexibility in frequency selection for wireless data transmission. Overall, the proposed antenna design is suitable for various wireless communication systems.