Mutual Inductance of Parallel Transmission Lines

[file: mline.mcd]

Formulas included in this spreadsheet:

• Mutal Inductance of to lines   MLINE()

Variables used:

• s  Separation between wire centers (in.)

• h  Height of wires above ground (in.)

• x  Length of parallel span (in.)

(We assume that two identical transmission lines share a parallel run of length x, with a horizontal separation s.)

 

Let L equal the inductance (H) of the first transmission line of length x (use formula for round, microstrip, or stripline geometry as appropriate):

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