Ahmad Ghanaatian-Jahromi

  Abstract

  In this thesis, a new optimal waveform for Ultra-wideband (UWB) radio is proposed. This new waveform is extracted through mathematical analysis for achieving high spectral utilization under the restrictions imposed by the U.S. Federal Communications Commission (FCC) spectral masks. Exploiting Inverse Fourier Transform (IFT) of FCC mask, the required analog signals are extracted through robust calculations. Normalized effective signal power (NESP) of the proposed method is calculated to be 95.27% which shows better efficiency compared to the other methods in the literature. In addition, the method is employed to achieve an optimal pulse for the main UWB band (3.1 GHz to 10.6 GHz) and a block diagram for analog realization is proposed. Simulation results verified that the presented technique is very promising and has better performance compared to the other pulses in literature. Finally a circuit level realization of the designed pulse is proposed to complete the work while the simulation results show high spectral efficiency and confirm the advantage of using this pulse in UWB transmitters. .

  July 17, 2010 Time: 10