[SI-LIST] How coupling of circuits results in AM modulation?

  • From: "Huiyun Li" <Huiyun.Li@xxxxxxxxxxxx>
  • To: <si-list@xxxxxxxxxxxxx>
  • Date: Fri, 12 Mar 2004 14:39:37 -0000

Hi,
Does anyone know electromagnetic (or electric) coupling between circuits in 
close proximity could result in Amplitude Modulation (AM) of a data signal 
(where the carrier is the harmonics of "square-wave" clock signal)? 

I know mutual inductance and capacitance may cause crosstalk between two 
adjacent wires. But that's not modulation. How does the signal ride on the 
harmonics of clock and get propagated in the air?  

Cheers,
Huiyun Li

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