A new design for a frequency reconfigurable antenna for a base station is presented with the use of a vertically stacked dipole structure and switches based on PIN diodes.The proposed antenna provides three frequency reconfigurations including Cellular (824–849 MHz), PCS, WCDMA, Wibro, WLAN (1700–2500 MHz), and WiMAX (3300–3600 MHz). Measured results on return losses, radiation patterns, and gains are provided, and these show good agreement with simulations. The proposed antenna in this article can be applied for the small base station or repeaters of future mobile wireless communications because of the small size and high-gain features. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:964–967, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26688