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Thank you manju.
Now the negative Vce seems solved. I am using NE85635A NEC BJT and its s- parameter model at Vce=10V, Ic=7mA for simple maximum gain amplifier.
But the gain is still negative .
Find the attached MWO(*emp) file.
Help me .
Alfred
Iam going to designing microwave amplifier using BJT(NEC) by AWR Mic Office. But it is not giving any gain(-20 db). Again the Vce mesured for voltmeter -ve value (but it should be 10V, 7 mA). May be transitor is OFF? Biasing is simple voltage divider biasing. Help me.
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