Gain function calculation (frequency response)

1. How do you calculate frequency response gain?
2. What is gain in frequency response?
3. How does frequency affect gain?

How do you calculate frequency response gain?

This gain equation is frequency dependent and is often written as H(jω). Since it is the ratio of output voltage to input voltage (or output current to input current), it is called a TRANSFER FUNCTION: Y(jω) = H(jω) X(jω) Now consider the function: H(jω) = a x jω + b.

What is gain in frequency response?

Generally, the frequency response analysis of a circuit or system is shown by plotting its gain, that is the size of its output signal to its input signal, Output/Input against a frequency scale over which the circuit or system is expected to operate.

How does frequency affect gain?

As the frequency increases, the capacitive reactance becomes smaller. This cause the signal voltage at the base to decrease, so the amplifier's voltage gain decreases.