Figure 2 shows the individual frequency components of the fifth-harmonic square wave: the fundamental, the third harmonic and the fifth harmonic. Take a look at the phase of each of these sinusoids ...

As an example, I've calculated the harmonic content of a square wave given user-defined fundamental frequency, rise times, pulse widths and duty cycles. It's very instructive to run through several ...

I remember coming to the understanding that a square wave, which is a collection of fundamental and (odd) harmonics frequencies, could then be used to give an indication of frequency response.

In fact, an ideal square wave contains components at all odd multiples of the fundamental frequency, in this case at 3 kHz, 5 kHz, 7 kHz, etc.

The second category consists of relatively inexpensive units, producing modified sine-wave outputs, which could logically be called “modified square waves” instead. They are basically square ...

Figure 2 shows a 100-MHz square wave input, a 12.5-MHz output for the filter clock, and 1-MHz sine and –cosine square-wave output before the dividers. 2.