Analysis of Modulator Circuits Based on Multi-dimensional Fourier Transformation
نویسندگان
چکیده
There are many communication circuits driven by multitone signals such as modulator and mixer. If the input frequency components are largely dHferent in each other, the brute force numerical method will take an enormous comput at ion time to get the steady-state responses. In this paper, we show a SPICE oriented algorithm based on multi-dimensional Fourier transformation, where all of the circuit analyses such as dcand at-analysis in the algorithm are carried out with SPICE. On the other hand, a very simple sensitivity analysis and 2-dimensional FFT are carried out by a Fortran program (or C program). We found that the convergence ratio of our algorithm is sufficiently large, and can be applied to wide class of communicant ion circuits.
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