Verilog-A modeling of BJT NQS excess phase

This paper presents a novel Verilog-A model that implements an idealized frequency dependent phase shift (excess-phase) in the small-signal transconductance but, unlike previous approaches, introduces no magnitude dependence. It has been claimed that Verilog-A cannot model BJT NQS behavior when the...

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Bibliographic Details
Main Authors: McAndrew, C.C., Huszka, Z., Coram, G.
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Computational modeling
Delay
Hardware design languages
Harmonic analysis
Integrated circuit modeling
Numerical models
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Summary:This paper presents a novel Verilog-A model that implements an idealized frequency dependent phase shift (excess-phase) in the small-signal transconductance but, unlike previous approaches, introduces no magnitude dependence. It has been claimed that Verilog-A cannot model BJT NQS behavior when the delay time depends on bias. We also introduce a new Verilog-A model that provides a correct implementation of bias dependent NQS effects for BJTs.
ISSN:1088-9299
2378-590X
DOI:10.1109/BIPOL.2008.4662715