Consider an RF amplifier with the following characteristics and/or inputs: Av.linear=20 Rin = 20 KQ RL...

 

Transcribed Image Text:

Consider an RF amplifier with the following characteristics and/or inputs: Av.linear=20 Rin = 20 KQ RL = 10 kQ Because of the essentially nonlinear nature of the amplifying device, the output voltage is given by the following expression: Vout=aVin + cV where a = Av, linear = 20 V/V, and c = -12 V/V³. Consider that the input to the amplifier is composed of signals of two different frequencies, f1 = 100 MHz and f2 = 105 MHz, and is given by the following expression: Vin = A sin w₁ t + B sin w₂t where A = 500 mV peak. Referring to our discussion of the blocking of an inband signal (A) by another signal considered to be well outside that band (B), determine the rms value of the B-signal that would lead to blocking of the A- signal inside its band. You might want to consult the file on example problems in nonlinear distortion on blackboard. Consider an RF amplifier with the following characteristics and/or inputs: Av.linear=20 Rin = 20 KQ RL = 10 kQ Because of the essentially nonlinear nature of the amplifying device, the output voltage is given by the following expression: Vout=aVin + cV where a = Av, linear = 20 V/V, and c = -12 V/V³. Consider that the input to the amplifier is composed of signals of two different frequencies, f1 = 100 MHz and f2 = 105 MHz, and is given by the following expression: Vin = A sin w₁ t + B sin w₂t where A = 500 mV peak. Referring to our discussion of the blocking of an inband signal (A) by another signal considered to be well outside that band (B), determine the rms value of the B-signal that would lead to blocking of the A- signal inside its band. You might want to consult the file on example problems in nonlinear distortion on blackboard.

Answer rating: 100% (QA)

To determine the blocking of the Asignal by the Bsignal we need to calculate the intermodulation pro... View the full answer