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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
Frequency Domain Analyses >
Frequency Domain Overview

Frequency Domain Overview

Frequency domain analysis is applicable only to electrical systems comprised of linear/nonlinear electrical elements — elements that may be described by S-parameters. Analysis may be single-tone bandpass , which includes the sweep and budget analyses domains, or multi-tone bandpass, which includes the mixer spurs and multi-tone analyses domains. Measurements obtained from analysis are applicable to both linear and nonlinear electrical systems.

Performance during single-tone and swept single-tone analysis may be examined for the following:

• Stability

• Frequency

• Group delay

• Output power

• Dynamic range

• Mixer spurious

• Voltages at all ports

• Voltage standing wave ratio

• Noise parameters (NF, SNR, NPWR)

• Nonlinear figures of merit (OIP3, P1dB, Psat)

• Linear parameters (S, Y, Z, H, G, and ABCD)