Bode Plots and Frequency Response Measurements

Overview

A Bode plot is a graph of the frequency response of a mechanical or electrical system. It consists of the combination of a magnitude plot and phase plot and is based on asymptotic straight-line approximations as a function of theoretical poles and zeros.

Both quantities (magnitude and phase) are plotted against a horizontal axis proportional to the logarithm of frequency. The vertical axis of magnitude is typically plotted logarithmically as well in units of dB; thus a log-log magnitude plot. The vertical axis of phase is typically plotted linearly in units of degrees; thus a lin-log phase plot.

Stick up this Bode Plot Poster in your lab as a quick reference for filter and amplifier design equations and visual aids to check your measurements and debug your designs.

Download this Keysight Technologies poster to help remove all doubt when designing and testing your filters and amplifiers.