학술논문

Computation of Intermodulation Distortion in RF Circuits Using Single-Tone Moments Analysis
Document Type
Periodical
Source
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst. Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on. 29(7):1121-1125 Jul, 2010
Subject
Components, Circuits, Devices and Systems
Computing and Processing
Circuit analysis computing
Intermodulation distortion
Radio frequency
Equations
Computational efficiency
Computational modeling
Analytical models
Circuit simulation
Steady-state
Kernel
Harmonic balance
nonlinear distortion
third order intercept point
Volterra kernels
Language
ISSN
0278-0070
1937-4151
Abstract
Obtaining the value of the third order intercept point using traditional simulation techniques typically requires a nonlinear steady state analysis with multitone inputs, which is very computationally expensive. In this paper, a new method is presented for the computation of the third order intercept point. Using the proposed approach, the necessary Volterra kernels are computed directly from the harmonic balance equations. The only computation cost is that of solving a set of sparse linear equations. Furthermore, only one input tone is required in this case, which greatly reduces the size of the equations and thus the computation cost.