Compact Microstrip Multi-band Antenna Design Suitable for Portable 5G Communication Tablets

This paper proposes a compact multi-band antenna for portable tablet computers that can be applied to various communication frequency bands. The antenna uses microstrip line branches of different lengths to couple with each other to generate multiple frequency bands and can cover the working frequency bands of LTE, Sub-6G, and Wi-Fi 6E at the same time. Through compact and simple antenna structure, makes the antenna more suitable for the size of modern portable devices.