# mutual impedance

## mutual impedance

[′myü·chə·wəl im′pēd·əns]
(electricity)
For two meshes of a network carrying alternating current, the ratio of the complex voltage in one mesh to the complex current in the other, when all meshes besides the latter one carry no current.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
where the elements of [Z.sub.mn] represent the mutual impedance between the sinusoidal current elements m and n , [V.sub.m] is the voltage in each segment m which is different from zero only at the position of the voltage source, and [[DELTA].sub.m] = 1/2([[DELTA]l.sub.m] + [[DELTA]l.sub.m+1]).
[Z.sub.m] represents the mutual impedance between the ground wire and the faulted phase conductor, per span.
Carberry, "A technique to simulate the self and mutual impedance of an array," IEEE Trans.
The active element patterns have a specific relationship with mutual impedance matrices in array antennas.
Away from having naturally decoupled antennas, a decoupling [lambda]/4 or 3[lambda]/4 transmission line connected between matched, coupled two antennas at specific distances from the antennas input ports, where the equivalent mutual impedance observed is pure imaginary, is a solution proposed in .
The first is the modulation of the reflected impedance [DELTA][Z.sub.I] by changing the burden impedance [R.sub.II] of the body; the second is similar modulation, obtained by changing the mutual impedance [M.sub.I,II] between the body and the inductor.
resistivity method (Keller and Frishknecht, 1966) and measurements of mutual impedance of loop antennas working at the high frequency.
Such geometrical and material considerations in realizing closely proximal antennas with minimum mutual impedance consideration need a careful design strategy.
According to the circuit theory, the mutual impedance between two loops can be defined as
The inner electronic field distribution of patch antenna is clearly known, so it is appropriate to be used to calculate the coupling efficiency which has been analyzed in many papers including radiation pattern and mutual impedance [10-13].
is the array admittance matrix  (here, subscripts R and T were omitted for simplicity), [Z.sub.0] the characteristic impedance of the transmission line connected to each antenna, [[??].sub.m] the matching impedance of each antenna, and Z the mutual impedance matrix.

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