Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2006-03-21
2006-03-21
Rodriguez, Paul L. (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S014000, C375S268000
Reexamination Certificate
active
07016823
ABSTRACT:
A method for operating a data processing system to simulate a mixer having an RF port, a LO port, and an IF port. In the present invention, the signal leaving the IF port is approximated by:in-line-formulae description="In-line Formulae" end="lead"?b2=f(a1,a3)+S22*a2in-line-formulae description="In-line Formulae" end="tail"?where S22 is a constant, a2is a signal input to the IF port, a1is a signal input to said RF port and a3is a signal input to said LO port, andf(a1,a3)=∑i=oM∑j=oNCij*a1i*a3jThe coefficients Cijare constants that depend on said mixer design. These coefficients can be determined by measuring the b2when a1and a3are single tone signals. In addition, the coefficients can be determined by simulating said mixer on a non-linear circuit simulator when a1and a3are single tone signals.
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Proctor Jason
Rodriguez Paul L.
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