A New Compact Hexaband Internal Antenna of the Planar Inverted F-Type for Mobile Handsets

This letter presents a novel compact internal antenna of the planar inverted F-antenna type. The proposed antenna, with the small size of 19 times 10 times5 mm
³
, can be easily placed in practical handsets. The return loss and radiation patterns from the proposed antenna are presented. The measured bandwidth of the proposed antenna (S
₁₁
< -9 dB) can cover 610 MHz (1600-2210 MHz) in the lower band and 1170 MHz (4960-6130 MHz) in the upper band. These operating frequencies are very attractive features for DCS/PCS/IMT-2000/UMTS/ISM/WLAN bands handset applications. Numerical simulation and experiment results of the proposed antenna are investigated.