Abstract : Wireless communication technologies are shifting to higher frequency bands in microwave range to fulfilling the rising data demand like GSM shifting to FR2,FR4 band .DRA has a prominent feature like low loss ,highly efficient, highly efficient with any feeding mechanism. This design has strong potential for Ultra-wide band applications. DRA can be designed in many shapes to observe same frequency it can operate at millimetre frequency range .To investigate DRAs along with the respective design procedures such as determination resonant frequency, quality factor and dimensional parameters of spherical, cylindrical and rectangular r shapes.
