Page 214 - Maxwell House

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road by means of applying (4.47) or (4.56) to an antenna of any kind of complexity. Especially,
the modern numerical toolboxes allow doing so with more or less restrictions depending on the
realized algorithm. However, the inevitable round off numerical errors piling up during the long
computer runs, possible undetected bugs in software silently compromising the results, false
model simplifications, and hundreds other factors makes actually very difficult to verify the
final results of simulation. Meanwhile, the linear character of Maxwell’s equations suggests
that fields radiated by the antenna of complex configuration can be computed by superimposing
contributions from elementary radiators. Therefore, the process of decomposition based on
elementary radiator as the building blocks and subsequent reconstruction can be effective way
of antenna analysis, design and development (see Chapter 5). Note also that antennas as devices
are a very critical component of any transmitting system transforming RF energy of current or
voltage sources into EM waves propagating in space or a receiving system providing the inverse
transformation on the reception sport. Evidently, the main engineering task is to develop
antennas of maximum efficiency. Therefore, we will start the next chapter from discussion of
antenna parameters that let us specify the antenna performance and better understand the ways
of antenna problem solution.

REFERENCES

rd
[1] D. J. Griffiths, Introduction to Electrodynamics, 3 Edition, Prentice-Hall, Inc., 1999.
[2] Andrzej Wolski, Theory of Electromagnetic Fields, University of Liverpool and the
Cockcroft Institute, UK, 2014, http://arxiv.org/pdf/1111.4354.pdf
[3] F. Porter, Course Notes,
http://www.cithep.caltech.edu/~fcp/physics/quantumMechanics/paths/paths.pdf
[4] Alexander Atland, Classical Theoretical Physics II, University of Cologne, Germany,
2014, http://www.thp.uni-koeln.de/alexal/pdf/cltpII.pdf or to download the book from
www.scribd.com/doc/218714695/Classical-Theoretical-Physics-Alexander-Altland
[5] Yuriy Shlepnev, “How Interconnects Work: Modeling Conductor Loss and
Dispersion”, Published in online Signal Integrity Journal, August 21, 2016,
https://www.signalintegrityjournal.com/articles/25-how-interconnects-work-
modeling-conductor-loss-and-dispersion