Slot Loaded Tri BandMicrostrip Antenna for Wireless Applications (original) (raw)

2013

Abstract

ABSTRACT A tri-band slot loaded microstrip antenna is proposed. The tri-band characteristics of antenna are achieved by incorporating a combination of symmetrical Y-shaped and asymmetrical U-shaped slot. The Y-shaped slot is placed symmetrically where as U-shaped slot is placed asymmetrically to the center of the patch to achieve the desired tri-band characteristics. Proposed antenna is able to achieve lower frequency ratio of 1.55 (second resonant frequency /first resonant frequency) and 1.37 (third resonant frequency/second resonant frequency), respectively. The return loss characteristics shows that the percentage impedance bandwidth achieved for global positioning system (GPS), wireless fidelity (Wi-Fi), and wireless metropolitan area networks (WiMAX) bands are 1.78%, 5.29%, and 10.37%, respectively. The parametric study of the antenna is presented. The HFSS simulated results are compared with measured and CST Microwave Studio. Good agreement is obtained between simulated and measured results.

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