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Noise Companion State-Space Passive Macromodeling for RF/mm-Wave Circuit Design

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1 Author(s)
Zuochang Ye ; Inst. of Microelectron., Tsinghua Univ., Beijing, China

Automatic macromodeling for passive linear systems is useful in RF/mm-wave circuit designs. Traditional macromodeling approaches only capture the port parameters of the systems, enabling small-signal (AC) and large-signal (transient, PSS, etc) analyses, but lack the capability of noise modeling which is very important in RF/mm-wave circuit designs. In this letter, we propose to account for noise in a traditional state-space-based passive macromodeling method. The proposed approach is to generate a noise companion model that describes the noise behavior in addition to a traditional state-space model that describes the port parameters. The proposed model supports small-signal noise analysis, periodic noise analysis, and large-signal transient noise analysis. In addition, the proposed model can work with commercial simulators seamlessly without modification to the simulator. Examples validate the proposed modeling method.

Published in:

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:32 ,  Issue: 9 )