Voltage Variable Capacitor Diode. Long story short virtually any diode when reversed biased will exhibit a capacitance change across the diode junction. While the threshold voltage is not breached the radio signal will pass through the diode as the diode acting as a capacitance connection component.
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The varicap diode is normally used in a tuning circuit in these mentioned applications as it functions as a variable capacitor in the circuit. In electronics a varicap diode varactor diode variable capacitance diode variable reactance diode or tuning diode is a type of diode designed to exploit the voltage dependent capacitance of a reverse biased p n junction. The diode has two terminals namely anode and cathode.
Varicap diodes vary the capacitance by varying the dc voltage on reverse biased pn junction.
They are capable of providing many advantages in terms of space and cost savings and also allow implementation of such features as frequency scanning and stored tuning. Varicap diodes vary the capacitance by varying the dc voltage on reverse biased pn junction. Cvdb 320 6n538 jennings 10 320pf 5kv variable vacuum capacitor. They are capable of providing many advantages in terms of space and cost savings and also allow implementation of such features as frequency scanning and stored tuning.
