Printed folded slot antenna for internal multiband mobile phone antenna

In this paper, we demonstrate that the slot antenna is also very promising for application in the mobile phone. The proposed slot antenna in this study occupies a compact area of 21 x 45 mm
²
only and is suitable to be printed on the system circuit board of the mobile phone. The proposed slot antenna can also generate two wide operating bands, with the lower band covering GSM operation and the upper band covering DSC/PCS (Personal Communication System, 1850~1990 MHz)/UMTS (universal mobile telecommunication system, 1920~2170 MHz) operation. Detailed design considerations of the proposed slot antenna are described in the paper. The proposed antenna is also fabricated and tested. Results of the fabricated prototype are presented and discussed.