Title :
Flexible RF front-end for communication in TV white spaces
Author :
Schuhler, Mario ; Jaschke, Alexander ; Tessema, Mengistu ; Kelm, Christian
Author_Institution :
RF & Microwave Dept., Fraunhofer-Inst. for Integrated Circuits IIS, Erlangen, Germany
Abstract :
A digitally tunable RF front-end for TV white space communication is presented. The front-end covers an RF frequency range of 470MHz to 860MHz with a signal bandwidth of 40MHz. It is based on a heterodyne architecture with a single frequency conversion using an IF of 280MHz. 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.
Keywords :
frequency convertors; television broadcasting; TV white space communication; bandwidth 40 MHz; digitally tunable RF front-end; flexible RF front-end; frequency 280 MHz; frequency 470 MHz to 860 MHz; frequency tunability; harmonic signals; heterodyne architecture; modulated signals; noise figure 3.5 dB; receiver; single frequency conversion; transmitter; Bandwidth; Gain; Iron; RF signals; Radio frequency; Receivers; Transmitters;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
