A Compact ACS-Fed Mirrored L-Shaped Monopole Antenna with SRR Loaded for Multiband Operation
In this paper, a compact asymmetric coplanar strip (ACS)-fed mirrored L-shaped monopole antenna is presented. The proposed design consists of three mirrored L-shaped branches and a split ring resonator (SRR) loaded beneath the substrate, which are responsible for achieving multiband characteristics, compactness and good impedance matching. The proposed antenna with a compact dimension of 22 × 16.08 × 1.6 mm3 fabricated and tested. The experiment result indicates that the proposed design, having -10 dB impedance bandwidth of 200, 670 and 530 MHz for 2.44, 5.3 and 8.2 GHz, respectively, covers 2.4/5.2/5.8 GHz WLAN, 5.5 GHz WiMAX and 8.2 GHz ITU band. It has good radiation characteristics for both E-plane and H-plane in all the desired frequency bands, very compact and produces good performances compared to the existing literature. The loaded SRR structure performance is validated through various parametric studies.