Accurate Fourier analysis for circuit simulators

Author

Kundert, Kenneth S.

Author_Institution

Cadence Design Syst. Inc., San Jose, CA, USA

fYear

1994

fDate

1-4 May 1994

Firstpage

25

Lastpage

28

Abstract

A new approach to Fourier analysis within the context of circuit simulation is presented that is considerably more accurate and flexible than the traditional SPICE approach. It is based on the direct computation of the Fourier integral rather than on the discrete Fourier transform and so it is not subject to aliasing. It can be used to accurately compute a small number of Fourier coefficients for broad-spectrum signals such as those generated by mixers, ΣΔ and pulse-width modulators, DACs, and SC-filters. In addition, techniques that reduce errors and provide the ability to resolve harmonics 120 dB-140 d below the carrier are presented

Keywords

Fourier analysis; Fourier transforms; circuit analysis computing; errors; harmonics; integration; interpolation; Fourier analysis; Fourier coefficients; Fourier integral; broad-spectrum signals; circuit simulators; direct computation; error reduction; harmonics; Analytical models; Circuit analysis; Circuit simulation; Computational modeling; Discrete Fourier transforms; Pulse generation; Pulse modulation; SPICE; Signal generators; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994

Conference_Location

San Diego, CA

Print_ISBN

0-7803-1886-2

Type

conf

DOI

10.1109/CICC.1994.379774

Filename

379774