Design and Analysis of Open Complementary Split Ring Resonators Loaded Monopole Antenna for Multiband Operation

This paper describes a compact triple-band monopole antenna based on Open Complementary Split Ring Resonators (OCSRRs) for Wireless Local Area Network (WLAN) and Worldwide interoperability Microwave Access (WiMAX) applications. The monopole antenna with engraved ground plane is used to cover WLAN frequencies (2.67GHz and 5.47GHz). The resonant frequency of WiMAX (3.43GHz) is achieved by introducing OCSRR in the monopole antenna. In order to achieve multiband and good impedance matching, OCSRRs are introduced in the rectangular monopole antenna. The prototype antenna is fabricated on an FR-4 substrate having dimension of 29.4 × 26 × 1.6mm3. Simulated and measured results are shown in good equivalence. The dipole radiation pattern is obtained in the elevation plane (E-plane), and omnidirectional radiation pattern is obtained in the azimuthal plane (H-plane). Parametric analysis of OCSRRs is studied to attain the best results. The proposed antenna has adequate advantages, including compact size, multiband, and impedance matching.