Abstract
A coplanar waveguide (CPW)-fed quad-band monopole antenna is proposed and analyzed by using four meander lines for L-band, 2.4 GHz wireless local area networks (WLAN)and 3.5 GHz worldwide interoperability for microwave access (WiMAX) communication applications. The desired quad frequency bands are generated by means of four meander lines. The simulation results indicate that the optimized CPW-fed quad-band monopole antenna can operate at 1.15–1.25 GHz and 1.5–1.9 GHz for L-band, 2.39–2.49 GHz for WLAN and 3.5 GHz for WiMAX communication applications with respect to S 11 < −10 dB. Additionally, the proposed antenna gives a good impedance matching characteristic and almost omnidirectional radiation patterns in the operation bands, making it suitable for multi-band wireless communication applications.
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