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What is distortion in RF Amplifier

This page explains distortion basics,causes of distortion and types of distortion. The definition of distortion is as follows.

The distortion is basically alteration in some of the parameters of any waveform or signal. In terms of RF amplifier, it is a change in the input waveform during amplification. The same is observed in the output signal waveform and is compared with the input waveform fed to the RF Amplifier.

Causes of Distortion

Following are the causes of distortion:
• Weak transistors/tubes
• overloaded of circuits
• Defective resistors
• leaky coupling or leaky capacitors
• Improper matching of electronic components on PCB

Types of Distortion

Following are the types of distortion:
• Amplitude or nonlinear distortion
• Frequency distortion
• Phase distortion
• Cross over distortion
• Nonlinear distortion
• Frequency distortion
• Phase shift distortion

Refer different amplifier classes such as Class A, Class B, Class-AB and Class C.

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