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Abstract
Whilst most wireless communication systems seek to increase capacity by increasing signal to noise ratio over a narrow frequency band, Ultra-Wide Band (UWB) systems increase capacity by utilizing a very large bandwidth. This means that the transmitted signals have a very wide spectrum, hence the term ’ultra-wideband’. By spreading the transmission over a very wide frequency range, it is possible for an UWB system to operate beneath the noise floor of most systems. These properties of very low power and very wide bandwidth have many advantag-es, including increased security, high speed transmission, and high processing gain with minimal interference to other spectrum users. In this thesis, the various possible transceiver architectures for the 3.1-10.6 GHz UWB communication systems are investigated. The complete front-end of an impulse-based UWB radio is described in a detailed analysis and the key compo-nents of the system are designed with Austriamicrosystems (AMS) Silicon Germa-nium 0.35 m process. The three important front-end functions highlighted in this work are: UWB signal generation, low-noise amplification, and correlation-based detection of the received pulse stream.