transmission-line theory

transmission-line theory

[tranz′mish·ən ¦līn ‚thē·ə·rē]
(electricity)
The application of electrical and electromagnetic theory to the behavior of transmission lines.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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According to the transmission-line theory, the open-circuit condition will show at the two ends of the line through the half-wavelength transformation at each side.
New three-conductor transmission-line theory with coefficients of the potential The electromagnetic noise is usually a high-frequency wave, and we have to consider that all of the lines have electromagnetic functions for any real description of noise.
We can now extend the single-conductor transmission-line theory to a multiconductor transmission-line theory by extending the differential equations for each line, which are numbered as i = 1,2...
According to transmission-line theory and dual-frequency matching results [9, 11], the values of the characteristic impedance [Z.sub.2] and electrical length [[theta].sub.2] at the first operating frequency [f.sub.1] of the transmission-line section shown in Figure 1 can be expressed by
It combines circuit theory, transmission-line theory, method-of-moments algorithms, and complex matrix techniques.
It shows how to put Maxwell equations in the form of generalized telegrapher equations and how to arrive at the classical transmission-line theory. The third chapter shows how transmission lines are integrated into topological networks.
Cleverly and seductively worded advertised claims for superior design properties that cannot be traced to the well-known and well-understood teachings of "transmission-line theory" (a university course required for most undergraduate students pursuing an E.E.
Chapter 2 begins with transmission-line theory using rectangular waveguide, coaxial line and microstrip lines, and introduces the Smith chart and impedance matching techniques.
Therefore, the ordinary transmission-line theory is not applicable to nonparallel lines.
While few switching-system designers pay such close attention to grounding schemes, shielding, and isolation, even fewer consider the basics of transmission-line theory. For example, in higher frequency switching systems, care often is given to ensure the impedance of the signal path through the switch is 50 [OMEGA].
The result of implementing the best practices associated with separation of ground planes, careful attention to isolation and shielding, and a focus on transmission-line theory enables designers to develop switching systems with bandwidths typically five to 10 times greater than the majority of commercial switching systems available today.
At resonance, the load on the line is just [R.sub.C], and ([P.sub.LINE]/[P.sub.RES]) can be found using elementary transmission-line theory. The line is allowed to be mismatched at the generator end for generality, and the model of Figure 2 is used.

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