Inductance plays a crucial role in communication devices such as mobile phones, base stations, and satellites. In the fields of audio and communication, inductors are often used in signal processing circuits. By changing the number of turns of the inductor or the material of the magnetic core, it is possible to adjust and optimize parameters such as signal amplitude and frequency. For example, using a balun filter composed of inductors and capacitors can effectively suppress stray signals and noise in RF signals.