PIFA with a bent, meandered radiating arm for GSM/DCS dual-band operation

In this paper, we present an innovative PIFA (planar inverted-F antennas) design in which the feed pin, the shorting pin and the radiating arm of the PIFA are all printed on a flexible printed circuit board (FPCB), which is then bent by 90/spl deg/ and attached to and supported by a foam base. Without the need of soldering the feed pin and the shorting pin to the radiating arm, the proposed PIFA design is easy to construct. An example for the proposed PIFA, applied to a folder-type mobile handset for GSM/DCS operation, is demonstrated. In this case, the PIFA is positioned such that the distance between the user´s head and the antenna is maximized, which can result in a much lower EM wave power absorption in the user´s head, thereby reducing the risk of biological damage.