A plot of the fundamental and third harmonic begins to resemble a square wave

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Other Materials from the Main Document

• Article «Find a signal's bandwidth from its harmonics»
• Figure 1. This time-domain plot of a square wave uses arbitrary time and amplitude scales, chosen as 10 and 1 respectively
• Figure 2. The fundamental sine wave associated with the square wave of Figure 1 has a peak amplitude of 1.273
• Figure 3. A plot of the fundamental and third harmonic begins to resemble a square wave
• Figure 4. A plot of the fundamental, third, and fifth harmonics gets more square
• Figure 5. A plot of the waveform including frequency content up to the 11th harmonic gets considerably closer to looking like a square wave
• Figure 6. An expanded time scale shows the rise time of the 5th harmonic waveform