Title :
FFT windows for intermodulation analysis of microwave circuits from transient simulation
Author_Institution :
Qualcomm Inc., San Diego, CA, USA
Abstract :
The use of time-domain window functions is investigated for intermodulation analysis of two-tone transient simulations. Window selection is dependent on whether fast Fourier transform (FFT) dynamic range is noise limited by interpolation noise or by window roll-off characteristics. Two tone transient and harmonic balance simulations of a MESFET amplifier show excellent agreement over a wide dynamic range.
Keywords :
circuit analysis computing; fast Fourier transforms; harmonic analysis; intermodulation; interpolation; microwave amplifiers; microwave circuits; time-domain analysis; transient analysis; FFT windows; MESFET amplifier; dynamic range; harmonic balance simulations; intermodulation analysis; interpolation noise; microwave circuits; time-domain window functions; two-tone transient simulations; window roll-off characteristics; Analytical models; Circuit analysis; Circuit noise; Circuit simulation; Dynamic range; Fast Fourier transforms; Interpolation; Microwave circuits; Time domain analysis; Transient analysis;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.596758
