Abstract
The cylindrical dipole consists of a highly-conducting tube or rod with radius a and half-length h. In practice, it is center-driven from a balanced open-wire transmission line with a distance b between the axes of the identical conductors of the line as shown in Fig. 2.1a. The cylindrical monopole is essentially half a dipole. It consists of a highly-conducting tube or rod with radius a and length h, erected perpendicular to a sufficiently large (ideally infinite), highly-conducting ground plane in either of the arrangements shown in Figs. 2.1b and 2.1c. The axis of the single wire with radius a in Fig. 2.1b is at a distance b/2 from the ground plane; with its image in the highly-conducting plane it is equivalent to the open line in Fig. 2.1a. The inner radius of the outer conductor of the coaxial line in Fig. 2.1c is b; the radius of the inner conductor is a and its extension of length h above the ground plane is the monopole antenna. In order that radiation from a balanced open-wire line be negligible, the condition
must be satisfied.
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References for Section 2
See, for example, King, R. W. P., H. R. Mimno, and A. H. Wing, Jr., Transmission Lines, Antennas, and Wave Guides, 2nd ed., Dover Publications, New York (1965), p. 40.
See, for example, King, R. W. P., Transmission-Line Theory, 2nd ed., Dover Publications, New York (1965), Ch. II.
Wu, T. T., and R. W. P. King, “Driving-point and Input Admittance of Linear Antennas,” J. Appl. Phys., 30, 74 (1959).
Duncan, R. H., “Theory of the Infinite Cylindrical Antenna Including the Feed-point Singularity in Antenna Current,” J. Res. NBS, 66D, 181 (1962).
King, R. W. P., and C. W. Harrison, Jr., “Determination of Admittance and Effective Length of Cylindrical Antennas,” Radio Science, 1 (New Series), 835 (1966).
King, R. W. P., Transmission-Line Theory, 2nd ed., Dover Publications, New York (1965), Ch. V.
King, R. W. P., R. B. Mack, and S. S. Sandler, Arrays of Cylindrical Dipoles, Cambridge University Press, Cambridge (1968), Ch. 7.
King, R. W. P., Theory of Linear Antennas, Harvard University Press, Cambridge, Mass. (1956), p. 214 and Fig. 34.8a.
Chang, D. C, and T. T. Wu, “A Note on the Theory of End-Corrections for Thick Monopoles.” Radio Science, 3 (New Series), 639 (1968).
King, R. W. P., and T. T. Wu, “On the Admittance of a Monopole Driven from a Coaxial Line,” Trans. IEEE, AP-17, 814 (November 1969).
See, for example, King, R. W. P., Theory of Linear Antennas, Harvard University Press, Cambridge, Mass. (1956), Ch. II.
Wu, T. T., “Theory of the Dipole Antenna and the Two-Wire Transmission Line,” J. Math. Phys., 2, 550 (1961).
Collin, R. E., and F. J. Zucker, Eds., Antenna Theory, McGraw-Hill Book Co., Inc., New York (1969), Part 1, Ch. 8.
Hartig, E. O., “Circular Apertures and Their Effects on Half-Dipole Impedances,” Doctoral Dissertation, Harvard University, Cambridge, Mass. (June 1950).
Holly, S., “Experimental Study of Electrically Thick Monopole Antennas,” Doctoral Dissertation, Harvard University, Cambridge, Mass. (June 1969).
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© 1971 IFI/Plenum Data Corporation
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King, R.W.P. (1971). Characteristics of Cylindrical Dipoles and Monopoles. In: Tables Of Antenna Characteristics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-6081-0_2
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DOI: https://doi.org/10.1007/978-1-4684-6081-0_2
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