Abstract:This paper presents detailed mechanisms of how improved intrinsic collector-base junction depletion capacitance (Ctc
) model in Mextram 505 improves OIP3 peak modeling in common-emitter SiGe HBTs. Harmonics of individual branch currents are examined using custom Verilog-A codes. Interestingly, the third order Ctc
charging current is found to be much lower than the third order main current (IN
), which dominatesthe third order collector current. Early effec… Show more
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