Title :
Design and optimization of low-noise oscillators using nonlinear CAD tools
Author :
Rohde, Ulrich L. ; Change, Chao-Ren ; Gerber, Jason
Author_Institution :
Compact Software Inc., Paterson, NJ, USA
Abstract :
The design of low phase noise oscillators has been both cultured for a long time and frequently labeled as “black magic”. In this paper, the aim is to first show a novel mathematical approach which considers all noise contribution and allows both the calculation and optimization of the phase noise of an oscillator with arbitrary topologies. After explaining the physics and mathematical background, we will show three examples: a 10 MHz crystal oscillator, an 800 MHz VCO and a 39 GHz millimeter-wave oscillator
Keywords :
bipolar transistor circuits; circuit CAD; circuit analysis computing; crystal oscillators; field effect transistor circuits; millimetre wave oscillators; nonlinear network synthesis; optimisation; phase noise; voltage-controlled oscillators; 10 MHz; 39 GHz; VCO; arbitrary topologies; black magic; calculation; crystal oscillator; low phase noise oscillators; low-noise oscillators; millimeter-wave oscillator; nonlinear CAD tools; optimization; 1f noise; Circuit noise; Design automation; Design optimization; Fluctuations; Frequency conversion; Low-frequency noise; Noise generators; Oscillators; Phase noise;
Conference_Titel :
Frequency Control Symposium, 1994. 48th., Proceedings of the 1994 IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1945-1
DOI :
10.1109/FREQ.1994.398283
