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Flexible RF front-end for communication in TV white spaces

: Schühler, Mario

European Microwave Association:
43rd European Microwave Conference, EuMC 2013. Proceedings : 6.-11. Oktober, 2013, Nürnberg, European Microwave Week, EuMW
Louvain-la-Neuve: European Microwave Assiciation, 2013
ISBN: 978-2-87487-031-6
European Microwave Conference (EuMC) <43, 2013, Nuremberg>
European Microwave Week (EuMW) <16, 2013, Nuremberg>
Fraunhofer IIS ()

A digitally tunable RF front-end for TV white space communication is presented. The front-end covers an RF frequency range of 470 MHz to 860 MHz with a signal bandwidth of 40 MHz. It is based on a heterodyne architecture with a single frequency conversion using an IF of 280 MHz. Among the frequency tunability, the transmitter provides a maximum output power of 17 dBm and the receiver an input sensitivity of -90 dBm as well as a total noise figure of 3.5 dB at maximum gain. The performance of the RF front-end is evaluated by measurements using harmonic and modulated signals.