According to the different materials and structures of the modulation region, varactor diodes can be divided into various types, as shown below
Modulation circuit: Variable capacitance diodes can be used as variable capacitance elements in modulation circuits to adjust parameters such as amplitude
Also known as a varactor diode or varicap diode, this tunable circuit utilizes a varactor diode to provide voltage-controlled capacitance.
In all radio and television applications, a voltage controlled oscillator (VCO) is a type of variable capacitance diode tuned LC circuit.
The volt ampere characteristic curve of a varactor diode is the same as that of a regular diode,
Abstract: This article introduces a phase-locked loop circuit that uses VCO to achieve frequency modulation,
