Inductor is the main cause which deviates the center frequencyregardless of message
signal. Due to the reason use of inductor in FM Modulator iscritical. Similarly, in case of
IC modulators inductor induces a process called gyration. Analternate approach to solve
the above mentioned problem is the use of Wien BridgeOscillator.
Design a FM modulator with the help of Wien Bridge Oscillator forpure sinusoidal
output. Choose minimum number of passive components to minimizeharmonics. The
output of modulator would be in Narrow Band FM.
