Characteristics Of Impedance

According to the signal transmission theory, the signal is a function of time and distance variables, so every part of the signal on the connection may change. Therefore, determine the AC impedance of the connection, that is, the ratio of the voltage change to the current change as the characteristic impedance of the transmission line (Characteristic Impedance): The characteristic impedance of the transmission line is only related to the characteristics of the signal connection itself. In the actual circuit, the resistance of the wire itself is smaller than the distributed impedance of the system, especially

Impedance board

In high-frequency circuits, the characteristic impedance mainly depends on the distributed impedance brought by the unit distributed capacitance and unit distributed inductance of the connection. The characteristic impedance of an ideal transmission line only depends on the unit distributed capacitance and unit distributed inductance of the connection.