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Recent Advances in Electrical & Electronic Engineering

Author(s): Osman M. Alsemaid, Sameir M. Ali Hamed* and Saif A. Mahmood

DOI: 10.2174/2352096511666180523094647

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A Series Solution for the Input Admittance of a Circular Loop Antenna over a Lossy Earth

Page: [113 - 117] Pages: 5

  • * (Excluding Mailing and Handling)

Abstract

Background: This study deals with the derivation of expressions for the current distribution and the input admittance of a circular loop antenna (CLA) over a lossy Earth in a series form.

Methods: The analysis is based on the image method, Fourier series expansion and the direct integration of the vector potential.

Result: The results for the current distribution of the study are in very good agreement with those corresponding results available in the literature, which checks the correctness of the formulations of the study.

Conclusion: The provided solution in this paper is simple, straightforward and can be applied without performing any numerical integrations, which makes it preferred compared to the numerical solutions that are available in the literature.

Keywords: Admittance, Bessel functions, circular loop, half-space, ground plane, lossy earth.

Graphical Abstract

[1]
R.W.P. King, The loop antenna for transmission and reception.In: R.E. Collin, and F. J. Zucker, Eds.Antenna Theory.. Part I, McGraw-Hill, New York, 1969
[2]
R.W.P. King, and G.S. Smith, Antenna in Matter: Fundamentals, Theory and Applications., MIT Press: Cambridge, MA, 1981.
[3]
D.C. Chang, "Characteristics of a horizontal circular loop antenna over a multilayered, dissipative half-space", IEEE Trans. Antenn. Propag., vol. AP-21, pp. 871-874, 1973.
[4]
G.S. Smith, Loop antennas., In: R.C. Johnson and H. Jasik, EdsAntenna Engineering Handbook., McGraw-Hill: New York, 2007.
[5]
A.N.H. Hassan, D.G. Stephen, and W.W. Keith, "Effect of a finite ground plane on radiated emission of a circular loop antenna", IEEE Trans. Electromagn. Compat., vol. 36, pp. 364-371, 1994.
[6]
S.C. Moorthy, "Analysis of a thin circular loop antenna over a homogeneous earth", Bell Syst. Tech. J., vol. 49, pp. 1215-1234, 1970.
[7]
J.R. Wait, Characteristics of antenna over a lossy earth.In: Collin, R.E. and F.J. Zucker, EdsAntenna Theory.. Part I, McGraw-Hill, New York, 1969, Ch. 11
[8]
M.P. Parise, An exact representation for the EM field from a circular loop antenna on a lossy half-space.IEEE Antenna Wirel. Propagt. Lett, . Vol. 13, 2014
[9]
M.P. Parise, "Fast computation of the forward solution in controlled-source electromagnetic sounding problems", Prog. Electromagnetics Res., vol. 111, pp. 119-139, 2011.
[10]
A. Shoamanesh, and L. Shafai, "Characteristics of circular loop antennas above a lossless ground plane", IEEE Trans. Antenn. Propag., vol. AP-29, pp. 528-529, 1981.
[11]
N.P. Singh, and T. Mogi, "Electromagnetic response of a large circular loop source on a layered earth: A new computation methods", Pure Appl. Geophys., vol. 162, pp. 181-200, 2005.
[12]
G. Smith, "Directive properties of antennas for transmission into a material half-space", IEEE Trans. Antenn. Propag., vol. AP-32, pp. 232-246, 1984.