Design and optimization of LC oscillators

M.D.M. Hershenson, A. Hajimiri, S.S. Mohan, S.P. Boyd, T.H. Lee
1999 IEEE/ACM International Conference on Computer-Aided Design. Digest of Technical Papers (Cat. No.99CH37051)  
We present a method for optimizing and automating component and transistor sizing for CMOS LC oscillators. We observe that the performance measures can be formulated as posynomial functions of the design variables. As a result, the LC oscillator design problems can be posed as a geometric program, a special type of optimization problem for which very efficient global optimization methods have recently been developed. The synthesis method is therefore fast, and determines the globally optimal
more » ... globally optimal design; in particular the final solution is completely independent of the starting point (which can even be infeasible), and infeasible specifications are unambiguously detected. We can rapidly compute globally optimal trade-off curves between competing objectives such as phase noise and power.
doi:10.1109/iccad.1999.810623 dblp:conf/iccad/HershensonHMBL99 fatcat:xukx2vcqdfdqhfizmfoox6gugq