International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering (IJAREEIE)
UWB is characterized by an unique potential in short range high data rate wireless communications. it is mainly used in different applications such as military, radar and it's carried by transmitting short pulses, UWB is limits to low energy levels so therefore the Federal Communication Committee (FCC) release spectral mask emission power in 2002. The UWB ranges from 3.1GHZ - 10.6GHZ commercially used as per FCC. In this paper, the authors have a problem of interference in system using same frequency band so they proposed an monopole antenna with circular shaped with complementary split ring slots in feed line which will have better matching impedances at high frequencies.