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Attenuator formula, asymetrical
Guys
I'm looking for a formula, or preferably a program, that will let me design a matching pad that will let me set Z1, z2, and the dB loss. I have the formulas for the minimum loss pads, but they would require a second fixed attenuator to set the dB loss to the -20dB I desire. I'm looking to build some 50 ohm to various higher impedances for use on my signal generators to match the higher impedances found on boatanchors, etc. Or, would it just be easier to use a minimum loss pad with a second symetrical pad to get the desired loss? Pete |