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Spice power source?

B

billcalley

Jan 1, 1970
0
I'm kind of stuck on making a 50 ohm power source in Spice (instead
of just using the voltage or current sources). I would like to make a
50 ohm power source with a Pout of 0dBm. I realize I have to use the
Spice voltage source with a series 50 ohm resistor, but do I set the
voltage source to 632 mV or 316 mV in order to get a 0dBm Pout (in a
fifty ohm system)?

Thank You,

Bill
 
J

Jim Thompson

Jan 1, 1970
0
I'm kind of stuck on making a 50 ohm power source in Spice (instead
of just using the voltage or current sources). I would like to make a
50 ohm power source with a Pout of 0dBm. I realize I have to use the
Spice voltage source with a series 50 ohm resistor, but do I set the
voltage source to 632 mV or 316 mV in order to get a 0dBm Pout (in a
fifty ohm system)?

Thank You,

Bill

I assume you mean you want 0dBm into a 50 Ohm load from a 50 Ohm
source, so you use 632.46mV for VP

...Jim Thompson
 
B

billcalley

Jan 1, 1970
0
Thanks James! Appreciate the great answer.

Bill
 
J

Jim Thompson

Jan 1, 1970
0
It's hard to see Jim as a "James"! Too dang formal.

I was a geek named "James" until I met my wife-to-be... I then became
"Jimmy" ;-)

...Jim Thompson
 
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