Abstract
A novel compact design of a wideband defected ground circular ring antenna is presented in this communication. The return loss and input impedance are measured experimentally and compared with the simulated results. Parameters like impedance bandwidth, VSWR, and antenna gain are calculated and discussed. It is observed that the designed antenna provides a wide band in frequency range of 8-12 GHz with an impedance bandwidth of 20.2 $%$. The antenna gain for the design is 6.8 dBi with reduced side lobe level to -18.9 dB.
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