The proposed work presents a compact hexagonal monopole antenna for wide-band applications. Defected ground structure method is used to enhance impedance bandwidth. The antenna is miniaturized by using a hexagonal radiating patch placed on an FR4 substrate material having relative permittivity 4.4. The dimensions of the antenna are limited to 36 mm × 26 mm × 1.6 mm. The antenna covers an operational bandwidth of 66.1% spanning from 3.12 GHz to 6.20 GHz. The proposed monopole shows the S 11 values of -22.6dB and -25.1dB at 3.74 GHz and 5.76 GHz, in the band. A peak gain factor of 2.7 dBi is observed at 5.76 GHz. The presented antenna shows a cross-polar difference of 44 dB with stable radiation characteristics making it suitable for S and Cband applications.