High Gain Planar Monopole Antenna Having Ultra Wideband Applications

A compact planar monopole antenna having its application in ultrawideband (UWB) presented and discussed. The radiating patch is composed of a square shaped patch modified to have cascading rectangular notches along with two oblong coupling strips at either side of the feedline with a unique ground structure. The antenna occupies a 31(1)*25(w)*1.6(h) mm
³
, with a quite simple structure. The antenna radiates omnidirectional with different directivities within UWB spectrum and has an operational range of 3.1 to 9.1 GHz. The antenna design parameters like reflection coefficient, gain, and radiation pattern are measured and are found to be in harmony with the simulated results.