Electromagnetically coupled WLAN/WiMax antenna

A novel microstrip-fed parasitic-coupled monopole antenna is presented for WLAN/WiMAX applications. The proposed antenna is in compact size, provides good impedance-matching bandwidth and possesses nearly dipole-like radiation patterns, covering WLAN (2.4-2.5GHz and 4.9-5.85GHz) and WiMAX (2.3-2.7GHz and 3.5-3.8GHz) bands. Simulation and measurements results of the prototyped antenna are presented and discussed.