Suppose an am signal at cos ct is applied to a single mixer


Question: Suppose an AM signal, A(t) cos ωct, is applied to a single mixer driven by an LO.

(a) If the LO waveform is given by cos ωct, determine the baseband signal.

(b) If the LO waveform is given by sin ωct, what happens? Why does this indicate the need for quadrature down conversion?

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Electrical Engineering: Suppose an am signal at cos ct is applied to a single mixer
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