Electrically small asymmetric coplanar strip‐fed metamaterial‐inspired antenna for WLAN and satellite‐based applications.

This article presents an electrically small asymmetric coplanar strip (ACS)‐fed metamaterial‐inspired antenna for multiband operation. The design employs a simple monopole, a set of rectangular split ring resonator (SRR), an inverted U‐shaped stub, and a rectangular complimentary split ring resonator (CSRR) in the ground plane to realize four operating bands. The antenna operates at 2.46, 5.8, 6.78, and 10.46 GHz with a bandwidth of 270 MHz, 340 MHz,180 MHz, and 1.16 GHz, respectively. The proposed structure has an electrical size of 0.186λ0×0.11λ0 $0.186{\lambda }_{0}\times 0.11{\lambda }_{0}$×0.013λ0 $\,\times \,0.013{\lambda }_{0}$ at 2.46 GHz. The experimental results are found to be in close proximity to the simulated ones. The presented electrically small antenna possesses a radian sphere (ka) of 0.68 and achieves an adequate gain of 2.37dBi with requisite radiation characteristics suitable for WLAN and satellite‐based applications. [ABSTRACT FROM AUTHOR]