Impedance and polarization-ratio transformations by a graphical method using the isometric circles

The isometric circles for the direct and inverse linear fractional transformations can be used for transformations of impedances and polarization ratios. In the Ioxodromic case an inversion is performed in the isometric circle of the direct transformation, followed by a reflection in the symmetry li...

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Published in:I.R.E. transactions on microwave theory and techniques 1956-07, Vol.4 (3), p.176-180
Main Author: Bolinder, E.F.
Format: Article
Language:English
Subjects:
Admittance
Equations
Impedance
Polarization
Reflection
Research and development
Voltage
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description The isometric circles for the direct and inverse linear fractional transformations can be used for transformations of impedances and polarization ratios. In the Ioxodromic case an inversion is performed in the isometric circle of the direct transformation, followed by a reflection in the symmetry line of the two circles, and a rotation around the origin of the isometric circle of the inverse transformation. In the nonloxodromic case only the first two operations have to be applied. Three illustrative examples are given: the first shows the transformation of the right half of the complex impedance plane into the unit circle (Smith Chart); the second gives a circular proof of the Weissfloch transformer theorem; the third shows an example of cascading, Iossless, two terminal-pair networks.
doi_str_mv 10.1109/TMTT.1956.1125047
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ispartof I.R.E. transactions on microwave theory and techniques, 1956-07, Vol.4 (3), p.176-180
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source IEEE Electronic Library (IEL) Journals
subjects Admittance
Equations
Impedance
Polarization
Reflection
Research and development
Voltage
title Impedance and polarization-ratio transformations by a graphical method using the isometric circles
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