Title :
Low Phase Noise Frequency-Synthesizer with Very High Frequency-Resolution for GSM 900/DCS 1800
Author :
Neurauter, B. ; Märzinger, G. ; Lüftner, T. ; Weigel, R. ; Scholz, M. ; Mutlu, V. ; Fenk, J.
Author_Institution :
Institute for Communications and Information Engineering, University of Linz, Austria Altenbergerstr. 69, A-4040 Linz, Tel.: +43-732-2468-9711, Fax.: +43-732-2468-9712, email: neurauter@mechatronik.uni-linz.ac.at
Abstract :
This paper presents a fractional-n frequency synthesizer that uses AC-modulation to obtain the desired fractional division value. After a brief presentation of the synthesizers´ key elements a detailed noise analysis follows. Measurements from the prototype synthesizer validate the very good phase noise performance which is predicted by theory. The realized high frequency resolution can be used to compensate the frequency error of the reference crystal oscillator in a typical GSM transceiver.
Keywords :
1f noise; Distributed control; Frequency synthesizers; GSM; Noise measurement; Oscillators; Phase measurement; Phase noise; Prototypes; Transceivers;
Conference_Titel :
Microwave Conference, 2000. 30th European
Conference_Location :
Paris, France
DOI :
10.1109/EUMA.2000.338889
