Drax,
I think your math/typing is a bit off. If I modify the math to match what I
'think' you intended then I think the answer is yes'ish.
For a power of 1 mW (i.e. 0.001 watts), you can get there with any combination
of voltage and current who product equals 1 mWe.g. 1 v and 1 mA (1V * 0.001A)
OR 2 V and 0.5 mA (2V * 0.0005A) <-- Not quite the numbers you typed in but
what I think you meant
OR whatever
So strictly on the basis of the math, the answer is yes.
But when one throws in a 'real' device, things do get a bit more complicated.
Any other questions, feel free to email me directly.
73Bob Groh, WA2CKY
On Tuesday, July 21, 2015 4:20 PM, Drax Felton <draxfelton@gmail.com>
wrote:
I've been playing with designing a 475kHz amp in LTSpice.
Does it matter how much the voltage swings on the output of a RF power
amplifier?
Given P = I * V, and phase matched into a 50+j0 antenna
Are 0.001ws at 0.1v @ 0.01a
really the same as
0.001w at 2v @ 0.001a
on the receiving end even though the voltage is 2000 times higher?
Any reason to prefer one design over the other at these low voltage levels?
KB3X
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