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POYNTING's THEOREM 161
Note as a final point that, in general, the reciprocity principle is valid for the majority of
applications of practical importance but not always. For example, the electromagnetic field
propagation in the magnetized plasma (ionosphere in Earth’s magnetic field) might be
nonreciprocal as well the propagation in magnetized ferrite discussed in Chapter 2 and some
other cases. More detail discussion of nonreciprocity topic is out of this book boundaries, and
we refer the reader to publications [9 - 13]. Note only the remarkable fact that Poynting’s
theorem predicts not only the existence of electromagnetic waves but gives us plenty of tools
to establish and verify Maxwell’s equations solutions building the bridges between different
areas of electrodynamics and circuit analysis. The only missing and critical point are how to
solve Maxwell’s equations. The following chapters are devoted to this topic.
REFERENCES
[1] Collin, R. E. and S. Rothschild, “Evaluation of antenna Q,” IEEE Trans. Antennas
Propagations., Vol. AP-12, 23–27, Jan. 1964.
[2] Fante, R. L., “Quality factor of general ideal antennas,” IEEE Trans. Antennas
Propagations, Vol. AP-17, 151–155, Mar. 1969.
[3] Jean G. Van Bladel, Electromagnetic Field, IEEE Press and John Wiley & Sons, 2 nd
Edition, 2007
[4] J. Kunisch and J. Pamp, “Considerations regarding the correlation between UWB
antenna transmit and receive responses,” http://www.whyless.org/files/public/ursi-
emt04-0001.pdf
[5] J. Kunisch and J. Pamp, “UWB Radio Channel Modeling Considerations,”
Proceedings ICEAA’03 Conference, Turin, September 2003
[6] Kurt E. Oughstun, Electromagnetic and Optical Pulse Propagation, Vol I and II,
Springer, 2006 and 2009
[7] W. H. Kummer and E. S. Gillespie, “Antenna Measurements – 1978,” Proceedings of
IEEE, Vol. 66, No. 4, April 1978
[8] Reinhold Blumel, Foundations of Quantum Mechanics: From Photons to Quantum
Computers, Jones & Bartlett Learning, EBook, 2011
[9] Alireza H. Mohammadian, Amol Rajkotia, Samir S. Soliman, Characterization of
UWB Transmit-Receive Antenna System,
http://wcsp.eng.usf.edu/UWB_Testbed_Docs/Antenna_Characterization.pdf
[10] Arun Kumar Tiwari, Smith Chart and its Applications, International Journal of
Electronic and Electrical Engineering, Vol. 4, No. 1, 2011,
http://irphouse.com/ijeee/IJEEEv4n1__8.pdf