In the last decade wireless communications engineering has seen
outstanding progress, making merged, enhanced and novel applications in
the area of mobile phones, wireless networks, sensors and television
feasible. Technologies have developed from hybrid systems to highly
integrated solutions in silicon, SiGe, GaAs and InP. By aggressive
scaling of device dimensions below 0. 1 ?m and employing advanced
technologies such as SOI, strained silicon and low-k, circuits with
operation frequencies and bandwidths up to approximately 100 GHz can now
be fabricated. However, especially in silicon, the restrictions inherent
in scaling make circuit engineering a demanding task. Examples of these
drawbacks are the limited high frequency signal power, leakage effects
and significant parasitics in passive devices. Enhanced circuit
topologies and design techniques have to be applied to achieve maximum
performance. In this context, designers must have profound skills in the
following areas: circuit theory, IC technologies, communications
standards, system design, measurement techniques, etc. The aim of this
book is to address all these multidisciplinary issues in a compact and
comprehensive form and in a single volume. Suitable for students,
engineers and scientists, the manuscript provides the necessary
theoretical background together with cookbook-like optimisation
strategies and state-of-the-art design examples. Each chapter is
accompanied by tutorial questions repeating the key issues of the
treated subjects. The manuscript is organised as follows: Chapter 1
preludes with an introduction concerned with the exciting history of
integrated circuits, technologies and wireless communications.
