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Is there a relation between the mutual inductance across a pair of bifilar wound coils, and the inductance per meter of the same winding considered as a transmission line? I.e., can one calculate one from the other?
This is a very confusingly worded question. Which "inductance per meter" did you mean? Ref @Baluncore's distinction of common mode vs. differential mode. Maybe a sketch would be in order, or a clear identification with standard jargon about which inductances you meant?Swamp Thing said:Is there a relation between the mutual inductance across a pair of bifilar wound coils, and the inductance per meter of the same winding considered as a transmission line? I.e., can one calculate one from the other?
The twisted pair impedance is really determined by wire diameter and insulation type/thickness. More twists simply shorten the wavelength at which the twisted pair will operate without radiative losses.Swamp Thing said:Yet intuitively, it seems that changing something (eg twist per cm or insulation thickness) that reduces the L/m would also push the K nearer to 1.
Mutual inductance of bifilar winding refers to the phenomenon where two parallel wires wound together in the same direction create a magnetic field that links the two wires, inducing a voltage in one wire when a current flows through the other.
Mutual inductance of bifilar winding is a specific type of inductance that occurs between two closely wound wires, while transmission line parameters refer to the characteristics of a transmission line such as resistance, inductance, capacitance, and conductance.
The mutual inductance of bifilar winding is influenced by the distance between the wires, the number of turns, the diameter of the wires, and the permeability of the surrounding medium.
The mutual inductance of bifilar winding can be calculated using the formula M = k * sqrt(L1 * L2), where M is the mutual inductance, k is the coupling coefficient, and L1 and L2 are the self-inductances of the individual wires.
Mutual inductance of bifilar winding is commonly used in transformers, inductors, and other electrical devices where a high degree of coupling between two coils is required for efficient energy transfer.