Teaching antenna radiation from a time-domain perspective

American Journal of Physics

Volumn 69, Issue 3, 2001, Pages 288-300

  Smith, Glenn S ^a  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

41; 84

Indexed keywords

EID: 85013084096     PISSN: 00029505     EISSN: 19432909     Source Type: Journal    
DOI: 10.1119/1.1320439     Document Type: Article

References (25)

1. G. S. Smith, An Introduction to Classical Electromagnetic Radiation (Cambridge U.P., Cambridge, 1997), Chap. 6, Sec. 6.1.2, pp. 364–371.
2. Some of the textbooks that follow this approach are: J. B. Marion and M. A. Heald, Classical Electromagnetic Radiation (Academic, New York, 1980), 2nd ed., pp. 247–257; J. R. Reitz, F. J. Milford, and R. W. Christy, Foundations of Electromagnetic Theory (Addison–Wesley, Reading, MA, 1993), 3rd ed., pp. 529–531; J. Schwinger, L. L. DeRaad, Jr., K. A. Milton, and W. Tsai, Classical Electrodynamics (Perseus, Reading, MA, 1998), pp. 367–374; J. D. Jackson, Classical Electrodynamics (Wiley, New York, 1999), 3rd ed., pp. 416–417.
3. See Ref. 1, Chap. 8, pp. 546–607;
4. See Ref. 1, Chap. 8, pp. 546–607; G. S. Smith, “On the interpretation for radiation from simple current distributions,” IEEE Antennas and Propagat. Mag. IAPMEZ 40, 39–44 (August 1998).IAPMEZ
5. This is actually the current distribution for a section of ideal transmission line of length h terminated with a reflectionless load. Here we are assuming the current on the antenna is similar to that on the transmission line. This assumption is good whenever the wire forming the antenna is infinitesimally thin, see for example, S. A. Schelkunoff, Advanced Antenna Theory (Wiley, New York, 1952), pp. 102–110; A. Sommerfeld, Electrodynamics (Academic, New York, 1952), pp. 177–186.
6. A. Sommerfeld, Electrodynamics (Academic, New York, 1952), pp. 177–186.
7. There is a long history associated with the derivation and physical interpretation of formulas similar to the ones presented here for the electromagnetic field of an assumed filamentary current distribution. In 1899 Heaviside discussed the reflection of an impulsive electromagnetic wave at the free ends of a wire and made sketches of the electromagnetic field surrounding the wire that are similar to those in Fig. 9: O. Heaviside, Electromagnetic Theory (The Electrician Printing and Publishing Co., London, 1899; Republication, Chelsea, New York, 1971), Vol. II, pp. 367–372.
8. In 1923 Manneback analyzed the radiation from a parallel-wire transmission line: C. Manneback, “Radiation from transmission lines,” J. Am. Inst. Electr. Eng. JAIEAH 42, 95–105 (1923)
9. JAIEAH C. Manneback, J. Am. Inst. Electr. Eng. 42, 981–982 (1923)
10. JAIEAH C. Manneback, J. Am. Inst. Electr. Eng. 42, 1362–1365 (1923). And later Schelkunoff extended Manneback's treatment and applied it to thin-wire antennas
11. JAIEAH S. A. Schelkunoff, Advanced Antenna Theory (Wiley, New York, 1952), pp. 102–109.
12. More recently, formulas similar to those presented here for the electromagnetic field have been obtained by a number of authors. The reader is cautioned that some of the earlier papers contain errors and inconsistencies that are pointed out in the later papers. Z. Q. Chen, “Theoretical solutions of transient radiation from traveling-wave linear antennas,” IEEE Trans. Electromagn. Compat. IEMCAE 30, 80–83 (1988)
13. IEMCAE J. Zhan and Q. L. Qin, “Analytic solutions of traveling-wave antennas excited by nonsinusoidal currents,” IEEE Trans. Electromagn. Compat. 31, 328–330 (1989)
14. IEMCAE L. Fang and W. Wenbing, “An analysis of the transient fields of linear antennas,” IEEE Trans. Electromagn. Compat. 31, 404–409 (1989)
15. IEMCAE E. J. Rothwell and M. J. Cloud, “Transient field produced by a traveling-wave wire antenna,” IEEE Trans. Electromagn. Compat. 33, 172–178 (1991)
16. IEMCAE S. A. Podosenov, Y. G. Svekis, and A. A. Sokolov, “Transient radiation of traveling waves by wire antennas,” IEEE Trans. Electromagn. Compat. 37, 367–383 (1995)
17. IEMCAE G. Wang and W. B. Wang, “Comments on transient radiation of traveling waves by wire antennas,” IEEE Trans. Electromagn. Compat. 39, 265 (1997)
18. IEMCAE D. Wu and C. Ruan, “Transient radiation of traveling-wave wire antennas,” IEEE Trans. Electromagn. Compat. 41, 120–123 (1999).
19. Results for the radiated field or far-zone field are given in several places, for example, D. L. Sengupta and C.-T. Tai, “Radiation and reception of transients by linear antennas,” in Transient Electromagnetic Fields, edited by L. B. Felsen (Springer, New York, 1976), Chap. 4
20. IEMCAE R. G. Martin, J. A. Morente, and A. R. Bretones, “An approximate analysis of transient radiation from linear antennas,” Int. J. Electron. IJELA2 61, 343–353 (1986).IJELA2
21. R. W. P. King and G. S. Smith, Antennas in Matter: Fundamentals, Theory, and Applications (MIT, Cambridge, MA, 1981), Chap. 9, pp. 527–570
22. G. Zhou and G. S. Smith, “An accurate theoretical model for the thin-wire circular half-loop antenna,” IEEE Trans. Antennas Propag. IETPAK 39, 1167–1177 (1991).IETPAK
23. See Ref. 1, pp. 579–583
24. T. W. Hertel and G. S. Smith, “Pulse radiation from an insulated antenna: An analog of Cherenkov radiation from a moving charged particle,” IEEE Trans. Antennas Propag. IETPAK 48, 165–172 (2000).IETPAK
25. See Ref. 1, pp. 341–347.