Planar dual-band slot array antenna for LTE/WiMAX access points

This article proposes a planar dual-band slot array antenna with high-gain operation for LTE / WiMAX access point. The impedance bandwidths, determined from VSWR □ 2.0, can reach about 18.3 / 14.6 % (475 / 510 MHz) for the 2.6 / 3.5 GHz operating bands, respectively, which is covering the bandwidth specification for LTE (2.5 ~ 2.7 GHz) and WiMAX (3.3 ~ 3.7 GHz) system. The proposed slot array antenna also provides maximum peak antenna gains and efficiencies of 13.9 / 14.1 dBi and 86.5 / 73.5 % across 2.6 / 3.5 GHz bands, respectively.