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Home Radio-frequency Transmission Lines Useful Transmission-line Configurations Two Wire Unbalanced Feeder, One Wire Grounded
 
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Two-wire Unbalanced Feeder, One Wire Grounded

Author: Edmund A. Laport

Applications for this line (Fig. 4.4) are somewhat less restricted than for types I and II, but its use is limited to short runs at low and medium frequencies. The earth-return current is reduced by the presence of the grounded wire. When h » a,

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Typical values include:

ρ (inches) h (inches) a (inches) k Z0

0.064

120

10

-0.386

420

0.102

120

20

-0.320

421

Home Radio-frequency Transmission Lines Useful Transmission-line Configurations Two Wire Unbalanced Feeder, One Wire Grounded

Last Update: 2011-03-19