Metamaterial Based Compact Super Wide Band Microstrip Antenna with DGS for Wireless Applications

A metamaterial based compact super-wide band microstrip antenna in the simulated frequency range from 4.60 to 15.50 GHz for wireless applications is presented in this paper. Microstrip offset feed line with stubs technique is used for proper matching to increase bandwidth. Partial ground introduced with SRR structure and one rectangular slot are used for enhancing the bandwidth and for reducing a size of the proposed antenna. A compact size of the proposed antenna is 24 × 18 × 1.6 mm
³
. The simulated results of the reflection coefficient, VSWR, peak gain and radiation pattern are drawn. The measured results of the reflection coefficient and VSWR using VNA for the proposed antenna are plotted. The measured and simulated results in terms of the reflection coefficient and VSWR are found to be close. The measured super wide bandwidth for S11 ≤ -10 dB is found to be 10.9 GHz in a frequency range from 4.6 to 15.5 GHz. The simulated maximum peak gain of the antenna is obtained 6.6 dB.