Figure 1 shows the circuit diagram of a square law modulator. The signal applied to nonlinear device, such that a square law can represent it: V2 (t) = V1 (t) + 3 V1² (t) V1 (t) is the input voltage, and V2 (t) is the output voltage. The input voltage is defined by: Vi (t) = 2COS (2 n fet) + 5COS (2 r fm t) Where 2COS (2 r fm t) is the message signal and 5COS (2 n fet) is the carrier wave. 1. Evaluate the output voltage V2(t) 2. What is the sensitivity of the AM signal 3. What is the power for V1(t) 4. What is the power of career signal 5. Draw the frequency component for V2(t) ( assume fm= 10KHZ , fc= 100 KHz and the spectrum frequency for the message is impulse) Nonlinear device A, cos (2mf;1) { Tuned to fe

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Figure 1 shows the circuit diagram of a square law modulator. The signal applied
to nonlinear device, such that a square law can represent it:
V2 (t) = V1 (t) + 3 V² (t)
Vi (t) is the input voltage, and V2 (t) is the output voltage.
The input voltage is defined by:
V1 (t) = 2COS (2 T fet) + 5COS (2 n fm t)
Where 2COS (2 n fmt) is the message signal and 5COS (2 n fet) is the carrier
wave.
1. Evaluate the output voltage V2(t)
2. What is the sensitivity of the AM signal
3. What is the power for Vi(t)
4. What is the power of career signal
5. Draw the frequency component for V2(t) ( assume fm= 10KHZ , f= 100 KHz
and the spectrum frequency for the message is impulse)
Nonlinear
device
A, cos (2mfi)|
Tuned to f.
Fig. 1
Transcribed Image Text:Figure 1 shows the circuit diagram of a square law modulator. The signal applied to nonlinear device, such that a square law can represent it: V2 (t) = V1 (t) + 3 V² (t) Vi (t) is the input voltage, and V2 (t) is the output voltage. The input voltage is defined by: V1 (t) = 2COS (2 T fet) + 5COS (2 n fm t) Where 2COS (2 n fmt) is the message signal and 5COS (2 n fet) is the carrier wave. 1. Evaluate the output voltage V2(t) 2. What is the sensitivity of the AM signal 3. What is the power for Vi(t) 4. What is the power of career signal 5. Draw the frequency component for V2(t) ( assume fm= 10KHZ , f= 100 KHz and the spectrum frequency for the message is impulse) Nonlinear device A, cos (2mfi)| Tuned to f. Fig. 1
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