Abstract
This paper presents the design of multi and wide band frequency reconfigurable monopole antenna, using FR4 as a substrate with thickness of 1.6mm. The radiating element is printed on a truncated metallic ground plane. The antenna works in a single-band and two dual-band modes using two switches. The single-band (WiMAX at 3.45GHz) mode is obtained when both switches (SW1 and SW2) are in OFF state. The first Dual-band (Wi-Fi at 2.45 GHz and WLAN at 5.45 GHz) mode is achieved when one particular switch of the two switches is turned ON. When both switches are turned ON, the antenna functions in the second dual band mode(GSM at 1.8GHz and WLAN at 5.45GHz). This monopole antenna is designed using computer simulation technology 2011(CST Microwave studio). The designed antenna's performance is examined on the basis of return loss, radiation pattern, Gain,Efficiency and VSWR.
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