prd
Member level 3
type of rf transistor failure
Dear rf guru,
I'm testing rf pa design, based on BFG425W. But after I test the circuit, the transistor would be destroyed and can not perform signal amplifiaction.
My circuit is 3V supply, Ic 10mA, fixed bias. with AC coupling from source and load.
I try input signal with -20dBm, -10dBm, -5dBm.
Are there any things that I should be carefule when test PA circuit ?
prd
Dear rf guru,
I'm testing rf pa design, based on BFG425W. But after I test the circuit, the transistor would be destroyed and can not perform signal amplifiaction.
My circuit is 3V supply, Ic 10mA, fixed bias. with AC coupling from source and load.
I try input signal with -20dBm, -10dBm, -5dBm.
Are there any things that I should be carefule when test PA circuit ?
prd