In this paper, Dualband internal antenna for GSM/DSC handset is proposed. The antenna has a size of about $38mm{ imes}90mm{ imes}1mm$, giving a total mobile phone PCB for support and fold type patch of about $30mm{ imes}8mm{ imes}3.2mm$. This antenna characteriatic facilitates the fine-tuning of the two operating frequencies of 909MHz and 1762MHz in the dualband design. The measured radiation pattern in the E-plane and H-plane for operating frequencies of 909MHz and 1762MHz is compared and analyzed. The designed and fabricated two band internal antenna for GSM/DSC handset have a gain between 0dBi and 2.0dBi at all bands. Also, the electric firld distribution and directivity on human head caused by portable phone is analyzed. An analysis model is composed of a human head model and the antenna mounted on the same ground plane as portable telephone size.