Numerical Analysis of Dual Band Mirrored-F Antenna for WLAN and Mobile WiMAX Applications

Abstract

The numerical simulation of a low-profile dual band mirroredF antenna for 3.5/5.5 GHz WiMAX and 5.2 GHz WLAN applications is proposed. It has a dimension of 29×14.5 mm and the two resonant modes of the antenna provide bandwidth of 13.8% (3.35 GHz-3.85 GHz) and 17.4% (4.9 GHz-5.85 GHz) with maximum gain of 3.36 and 7.35 dBi respectively. The peak values of return loss are -22.124 and -52.282 dB and VSWR varies between 1.83~1.17 and 1.004~1.9 at the lower and upper resonant frequency bands. In addition, the antenna also provides almost omnidirectional radiation characteristics and excellent impedance matching.