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Gap problem in king-middleton second-order theory for dipole admittance calculations

Gap problem in king-middleton second-order theory for dipole admittance calculations

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© The Institution of Electrical Engineers
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The ‘gap problem’ associated with the King-Middleton second-order theory has been solved by King et al. The empirically determined susceptance values of the knife-edge capacitance as given in Reference 1 were found to be reliable for thin dipoles, but not for thicker ones. The cause of this imperfection is determined and a table of the corrected values included in this letter.

Inspec keywords: dipole antennas; antenna theory

Other keywords: thin dipoles; dipole admittance calculations; cylindrical antennas; gap problem; antenna theory; knife-edge capacitance; thick dipoles; empirically determined susceptance values; dipole antennas; King-Middleton second-order theory; corrected values

Subjects: Antenna theory; Single antennas

References

    1. 1)
      • R. King , D. Middleton . The cylindrical antenna: Current and impedance. Q. Appl. Math. , 302 - 335
    2. 2)
      • R.W.P. King , E.A. Aronson , C.W. Harrison . Determination of the admittance and effective length of cylindrical antennas. Radio Sci. , 835 - 850
    3. 3)
      • R. King . The end correction for a coaxial line when driving an antenna over a ground screen. IRE Trans. , 66 - 72
    4. 4)
      • R.W.P. King . (1956) , The theory of linear antennas.
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