A folded reconfigurable antenna using three PIN diodes is proposed for personal communication handset applications. In a compact volume of 60 × 9 × 8 mm3 , the antenna has a simple metal structure comprising a folded loop strip, a Y-shape folded strip and three PIN diodes. By independently controlling the on/off states of the three PIN diodes located on the radiating element, the proposed structure can operate in the inverted-F antenna (IFA) and loop modes, respectively. While operating in the IFA mode, the bandwidth is sufficient to cover the DCS (1710–1880 MHz), PCS (1850–1990 MHz) bands. Owing to the additional Y-shape folded strip, the bandwidth generated by multiple resonances of the loop mode covers GSM850 (824– 894 MHz), GSM900 (880–960 MHz), GPS (1560–1590 MHz), UMTS (1920–2180 MHz), LTE2300 (2305–2400 MHz), WLAN (2400–2480 MHz) bands. Good radiation efficiency and antenna gain at frequencies over the desired operating bands are obtained. The proposed antenna is fabricated and all simulated results are confirmed with measured data.