Consider the following circuit with an input signal, v(t), an amplifier with gain K, a sinusoidal...

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Consider the following circuit with an input signal, v(t), an amplifier with gain K, a sinusoidal carrier signal at We, and two nonlinear devices: v(t) av K s(t) bv; Acosat (a) Express the output signal s(t) in terms of v(t), A, K, cos (o), a and b. (b) Determine the choice of the gain K so that the above circuit performs as a DSB-SC modulator without output filtering. Consider the following circuit with an input signal, v(t), an amplifier with gain K, a sinusoidal carrier signal at We, and two nonlinear devices: v(t) av K s(t) bv; Acosat (a) Express the output signal s(t) in terms of v(t), A, K, cos (o), a and b. (b) Determine the choice of the gain K so that the above circuit performs as a DSB-SC modulator without output filtering.