Miniaturized Dual-band V-Shaped Monopole Antenna fed by V-Stub

A miniaturized dual-band v-shaped monopole antenna fed by v-stub is presented. The proposed antenna performs two resonant modes covering dual-band of wireless standards, for operating in the IEEE 802.11 a,g,n WLAN (5.15-5.35 GHz and 5.725-5.825 GHz) and IEEE 802.16e WiMAX (3.3-3.69 GHz and 5.25-5.85 GHz) bands. The antenna is printed on a 1.6-mm thick FR-4 substrate and the relative permittivity of 4.4, is fed by cross v-strip line a 50 Omega with SMA connector. The antenna size is 18 mm x 26 mm x 1.6 mm in dimensions. The measured results show that the miniaturized size antenna achieves a broad operating bandwidth of 3.24-3.71 GHz and 4.85-5.87 GHz for vertical bar S-11 vertical bar< -10 dB and omnidirectional beam. The measured gains of the antenna at 3.5 GHz and 5.5 GHz frequencies are 1.51 dBi and 2.34 dBi, respectively. (C) 2016 The Authors. Published by Elsevier B.V.