Broadband internal antenna for 700MHz LTE application with distributed feeder

An internal wideband antenna is proposed for newly promoted mobile applications. With the intrinsic longer wave length and the adjacent conventional communication channels of Cellular 800(824~894 MHz), LTE handsets would be recommended to cover from 704 MHz to 894 MHz for US service basically. If the manufacturers consider the compatible utility of conventional GSM scheme, The system should drive additional 136 MHz bandwidth; 824 MHz to 960 MHz from the single antenna. Considering of that 30% wide bandwidth, the antenna should raise up its impedance capacitance for diverse wavelengths by novel designing of radiator and dielectric carrier within an allowed tradeoff with another performances. Despite the uncertainty of computational analysis, this simulation based preceding research explains the interrelations between core parameters in order to design the very wideband application well. The FDTD simulation platform SEMCAD was thoroughly employed for tuning and evaluating the antenna radiation performances.