Abstract: A novel planar inverted-F antenna (PIFA) with dual-shorting point is proposed for multiband mobile communication applications. The antenna comprises a main strip, a parasitic strip, and a slotted ground plane. For enhancing the bandwidth of DCS/PCS/UMTS and LTE 2 300/2 500, the antenna applies dual-shorting point design to generate multimode between 1 707~2815 MHz. The antenna upper band is formed by the higher-order resonant mode contributed by the parasitic strip and can cover the desired 3387~3627 MHz. The proposed antenna has good impedance matching characteristics for GSM (824~960 MHz)/DCS (1 710~1 880 MHz)/PCS (1 850~1 990 MHz)/UMTS (1 920~2 170 MHz)/LTE (2 300~2 400 MHz, 2 500~2 690 MHz)/802.11b (2.4~2.48 GHz) and Wi-MAX (3.4~3.6 GHz). The measured radiation efficiency of proposed antenna is higher than 52% in GSM 850/900, DCS/PCS, UMTS, LTE 2 300/2 500, and IEEE 802.11 b, and is up to 50% in Wi-MAX.