- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
Query about pinch-off point for GaAs FET in ADS
Hi,
I think you shouldn't put Vds to 0, try with some other value, half of Vds brake down voltage would be usual. Then make gate voltage as negative as it takes to have drain current fall to 1mA. This would be app value for pinch-off.
flyhigh
try to simulate over a certain Vgs range to find out this point.
So the pinch-off voltage for a GaAS FET remains the same even if the VDS changes? IS the pinch-off voltage at the point when the Ids current rises from zero when it is plotted against VGS?
I plot Id vs. VGs with various Vds. I use the Vgs where Ids takes off as my pinch-off voltage. That all I can think of. Any more idea?
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