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#18
February 25th 10, 07:10 PM
posted to rec.radio.amateur.antenna
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Two coax as substitute for open line
Owen Duffy wrote in
: .... .... in the other (defined by differential mode), and V conductor to conductor is twice V conductor to shield, so V'=2*(I*Zo), and Zo'=V'/I=2*(I*Zo)/I=2*Zo. I should have expected that this is not obvious to you Jeff, and expand that to: .... in the other (defined by differential mode), and V conductor to conductor is (by definition of differential mode) V'=(I*Zo-(-I*Zo))=2*I*Zo, and Zo'=V'/I=2*(I*Zo)/I=2*Zo. Owen |
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