A LTE/WWAN folded antenna for tablet computer application

A folded antenna for tablet computer application is proposed. The antenna covers long term evolution (LTE) band and wireless wide area network (WWAN)band(i.e. LTE700/GSM850/900/1800/1900/UMTS2100/LTE2300/2500MHz). We made a parametric study of key geometrical parameters affecting in return loss quality. The measured results show that the antenna operates over the 698~960MHz and 1644~2830MHz, which can meet the required bandwidth of the desired eight band LTE/WWAN operation. The peak gains and efficiencies of the antenna are about 1.38/3.88dBi and 79/86%. for the LTE/WWAN bands, respectively. This makes it attractive for practical applications.