Compact Penta-Band Dual ZOR Antenna for Mobile Applications

초록

A compact penta-band dual zeroth order resonator (ZOR) antenna with band-stop filter is proposed for mobile applications. The ZOR antenna is designed with modified mushroom-like structures extended on nonground region to obtain good efficiency and broad bandwidth. This modified mushroom-like structure is confirmed as double negative (DNG) transmission line by full wave simulated dispersion relation. Moreover, a bended patch and a band-stop filter (BSF) are employed to increase efficiency and bandwidth, respectively. The length of each antenna is about lambda(0)/10 at the resonant frequencies of 900MHz and 1800MHz, respectively. The overall dimension of the antenna is 54.4mm (length) x 4mm (width) x 5mm (height). The total efficiencies in low and high bands are measured more than 40% and 70%, respectively.