Ft extraction
时间：04-09
整理：3721RD
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Hi!
Is it a correct way to extract Ft?
1. Measure S-parameters of a BJT under particular bias conditions.
2. The frequency where |S21|^2 rolls-off by 3 dB (Fu) multiplied by DC base current gain (H21(0)) is Ft, so Ft=Fu*H21(0).
Is it a correct way to extract Ft?
1. Measure S-parameters of a BJT under particular bias conditions.
2. The frequency where |S21|^2 rolls-off by 3 dB (Fu) multiplied by DC base current gain (H21(0)) is Ft, so Ft=Fu*H21(0).