Multi Band Antenna Design for Mobile Devices

Abstract

A laser direct structuring (LDS) antenna for multiband operation covering the GSM-850/900, GPS, DCS-1800, PCS-1900, UMTS-2100, WLAN-2400, LTE-2500 bands in the 5G communication devices is presented. The proposed antenna achieves this by exciting the antenna's wide radiating plate. The proposed antenna uses asymmetric T-type feed line structure to enchase impedance matching and achieve wide bandwidth with voltage standing wave ratio (VSWR) of 3: 1. Due to the compact volume, only occupied 50×113mm2, the proposed antenna design is fitting to be applied in the mobile devices.