A compact dual-feed water-based diversity antenna

Abstract

A dual-feed, water-based dielectric resonant antenna (DRA) is proposed for hand portables. It works over 2.4 to 3.34 GHz to cover 2.43 GHz WLAN, Bluetooth, three LTE bands (band 7, band 38 and band 41) and 2.63 S-DMB band. A ground defect structure is employed to provide a decoupling path between the antenna ports, and at the same time it increases the radiation efficiency of the structure because it acts as a radiator. Simulated results are presented to validate this new design which occupies a very small space.