Research Article Impact Factor: 4.226 ISSN: 2319-507X Neha Pazare, IJPRET, 2015; Volume 3 (9): 35-42 IJPRET

\ Abstract: This paper introduces printed diversity monopole antenna for the UWB applications. The diversity antenna comprises of two CPW feed symmetric semicircular discs placed orthogonally to each other and sharing a common ground plane. The return loss of both the ports exhibit the bandwidth 7.4 GHz (from 2.4-9.8 GHz). The isolation between both the ports is controlled by the cross stub in the ground plane and is around 15 dB at lower frequencies and better than 20 dB above 5 GHz. The proposed antenna measured results are in close agreement with the simulated results. The radiation pattern of the antenna is omnidirectional in H-plane and bidirectional in E-plane. The diversity parameters like envelope correlation coefficient and diversity gain are calculated and found in acceptable range.