normalized impedance

normalized impedance

[′nȯr·mə‚līzd im′pēd·əns]
(electromagnetism)
An impedance divided by the characteristic impedance of a transmission line or waveguide.
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Normalized impedance means impedance divided by the characteristic impedance of the air, [z.sub.0] = [rho][c.sub.0].
The resultant matrix is the normalized impedance matrix [[??]], as shown in
2(c) presents the normalized impedance of the material, the real value of which is near unity within the non-resonant region, ensuring a good match between the antenna and air.
2(a) represents the relation between normalized impedance ratio ([Z.sub.a]/[Z.sub.0]) and ([Z.sub.S1]/[Z.sub.0]) plotted against electrical lengths [[theta].sub.a] or [[theta].sub.S1] and likewise Fig.
The magnitude and phase of the normalized impedance for a vent length of 1.0 m (39.4 in.) is compared in Figure 8.
To scale the impedance of the model from the normalized impedance, i.e., [g.sub.0], to [Z.sub.o], all the J-inverters have to be divided by [Z.sub.o] as given in (2).
So, there is a nonlinear transformation between normalized impedance z=r+jx and transition parameters [[phi].sub.r], [[phi].sub.x], [[theta].sub.r] and [[theta].sub.x].
* E-mail: sharmasunil43@gmail.com Table 1: Variation of Normalized Impedance Relative to Tube Radius for Constant Value of Stenosis Height.
Figure 2 shows the normalized impedance results when the width [W.sub.rf] is varied from 8 to 16 mm and all the other parameters are fixed: [R.sub.cs] = 26 mm, [L.sub.rf] = 16 mm, [G.sub.sf] = 10 mm and [W.sub.f] = 1.94 mm.
Based on the Bloch-Floquet theorem, the propagation constant and the normalized impedance of the CRLH TL unit cell can be expressed as [4]
Assuming that the available impedance values are in the range of 10 [OMEGA] < [Z.sub.i] < 150 [OMEGA], the normalized impedance values have the range of 0.2 < [z.sub.i] < 3.

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