System level analysis of a new digital modulator architecture for mobile communications applications with high spectral purity

The three most important measures for mobile communication equipment are power consumption, production or assembly costs and size. In this work a transmitter architecture es investigated, which is called the fractional-n modulation loop. This architecture is very promissing to have an excellent performance on the three parameters mentioned above. In addition to that, this architecture could be a first step to what is called the software radio because it is very easy to make this transmitter multi-standard capable.