Modified Linearization Technique For Intermodulation Cancellation Within Wireless Receiver

This paper proposes a modified model of RF receiver which enhance its linearity characteristics by using a mirror amplifier (MA). This MA has the same properties of the RF receiver such as third-order intercept point (IIP3), noise figure (NF) and gain (G). By using this model, we study the effect of receiver's nonlinearity on the performance of telecommunication systems and we could achieve about 30 dB cancellation of third-order intermodulation products. We but the scenario of interference caused by intermodulation products generated by unwanted interference signals inside the RF receivers. Specifically, third-order intermodulation distortion (IMD3) that could be at frequencies within working band for the desire system. Using ADS software and nonlinear amplifier model which equivalent to the RF receiver, we achieve a practical calculations for the cancellation of third-order products.