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Conversion gain of an envelope detector

Maria98

hi, 

https://ieeexplore.ieee.org/document/7014304 (basic differential envelope detector, figure 3)

The differential envelope detector remains off until it gets the differential sinusoidal signal and provides high output when both transistors are off (in the case of the OOK modulated input signal). To simulate its conversion gain, what should be the setting for the HB analysis in cadence. The input frequency in envelope detector is modulated carrier and output is the baseband. What should be the frequency variable that should be swept to check ED conversion gain? please guide. thank you

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