This chapter defines the most important performance parameters for analog systems. It begins with a simple analysis of linear two‐port networks using a scattering matrix, from which the small‐signal radio‐frequency (RF) gain is defined. The standard metric for quantifying the performance of a noisy RF component or system, the noise figure, is then defined including a brief discussion of thermal noise. A Taylor series analysis is conducted for a single sinusoidal drive and a two‐tone sinusoidal signal in order to describe the nonlinearity of a RF component or system in a standard manner. A single‐tone signal is used to define the compression dynamic range (CDR), whereas the analysis of a two‐tone drive introduces the spurious‐free dynamic range (SFDR). Finally, the chapter is concluded with a prescription on how to cascade the individual performance metrics in a chain of stages to facilitate system analysis.
Analog Performance Metrics
2015-02-26
24 pages
Article/Chapter (Book)
Electronic Resource
English
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