Which mixer (Circuit Envelop/ Idealized baseband/ Equivalent Baseband from SimRF blocksets) is best suited for single carrier frequency input with imperfections such as noise/clipping in SimRF 3.2 (R2012a)?

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Which mixer (Circuit Envelop/ Idealized baseband/ Equivalent Baseband from SimRF blocksets) is best suited for a single carrier frequency input with imperfections such as noise/clipping? [For modeling a downconverter]
Also, what are the limitations of these different mixer when using it for this application?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 16 Jan 2013
Idealized baseband mixer has built-in frequency-dependent phase noise. It might be simpler to use for a single-frequency system with a known phase noise model.
Equivalent Baseband mixer is more general, because it allows the arbitrary oscillator signal (see, for example, the phase noise block in the 'simrf_low_if' demo). The "phase noise" block is used as a noisy oscillator to the two mixers in Hartley Receiver.
With respect to circuit envelope mixer, the closest demo which will explain more is 'simrf_friis'. There you can see the simple chain, where the signal is downconverted by a mixer and a noiseless oscillator.
Idealized baseband mixer would be more suited with respect to single frequency system.

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