Compact ACS-Fed Printed Antenna Using Dual Edge Resonators for Tri-Band Operation

A novel compact asymmetric coplanar strip (ACS)-fed printed antenna using dual edge resonators for tri-band operation is presented. The proposed tri-band antenna is based on an ACS-fed beveled monopole, to which an E-shaped coupled resonator and an L-shaped slot resonator are introduced for achieving two new independent resonances and miniaturization of size. The antenna has a small overall dimensions of only 12 × 23 × 1 mm³. The experimental results demonstrate the proposed antenna is capable of operating over the frequency ranges 2.37-2.52, 3.38-3.71, and 4.92-5.96 GHz, suitable for 2.4/5.2/5.8-GHz WLAN and 3.5/5.5-GHz WiMAX applications.