Intermodulation (IM) distortion
Intermodulation distortion is a scenario where signals from outside the monitored channel combine
nonlinearly to produce frequencies within monitored channel frequency range. This intermodulation distortion is a completely undesirable but
un- scenario in RF.
Distortions in a system are represented with the help of
Taylor series. Each term in Taylor series is represented as in formula below.
Where ft1 and ft2 are the frequencies of two different inputs signals to the system. Variable n can have any integer value.
Lets discuss following Intermodulation products:-
Second Order Intermodulation products are discussed below.