Abstract
In this paper, a metamaterial embedded planar inverted-F antenna (PIFA) is proposed for cellular phone. A dual band PIFA is designed to operate both GSM 900 MHz and DCS 1800 MHz. The ground plane of conventional PIFA is modified using a double negative (DNG) metamaterial array. The investigation is performed using the Finite Integration Technique (FIT) of CST Microwave Studio. The specific absorption rate (SAR) values are calculated considering two different holding positions-cheek and tilt. The results indicate that the proposed metamaterial embedded antenna produces lower SAR in the human head compared to conventional PIFA. Moreover, the modified antenna substrate leads to slight improvement of the antenna performances.