NEC-LIST:Modeling three wires

Hello, I am a Ph.D. student. I have been modeling three wires using NEC-Win+. One is a signal wire and the other two are power wires. They are on a wooden table. I have an accurate charge distribution up to 25MHz modeling them in free space; then the model has peaks and the empirical data does not have peaks. I tried adding source impedance- that helps- but it lowers the magnitude of the charge distribution too far. I am now trying using transmission line theory- any suggestions?

  Thank you,

   Candace Suriano

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