Sideband Filter

A sideband filter is a device used to isolate or remove specific frequencies (called sidebands) from a signal, often in communication systems. When a signal is modulated to carry information, it creates additional frequencies adjacent to the main signal frequency. The sideband filter selectively passes or blocks these side frequencies, helping to reduce noise or interference and improve signal clarity. Essentially, it acts like a precise piece of audio or radio equipment that cleans up the signal by focusing only on the desired parts of the spectrum.