Microwave modelling of h.f. Yagi antennas over real ground

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Microwave modelling of h.f. Yagi antennas over real ground

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© The Institution of Electrical Engineers
Published

Yagi antennas operating at 25 MHz over real ground have been modelled at microwave frequencies. The method of modelling ground, the measurement of its electrical parameters and the apparatus for measuring radiation patterns of model antennas are described. Typical radiation patterns obtained are compared with those predicted from theory.

Inspec keywords: antenna radiation patterns; antenna arrays; microwave measurement

Other keywords: real ground; far field pattern; 25 MHz; HF Yagi antenna; microwave modelling

Subjects: Microwave measurement techniques; Antenna arrays

References

    1. 1)
      • KING, R. W. P.: see Reference 2, p. 193.
    2. 2)
      • R.W.P. King . (1956) , Theory of linear antennas.
    3. 3)
      • Hall, P.S.: `Microwave modelling of high frequency aerials over ground', 1974, Ph.D. Thesis, University of Sheffield.
    4. 4)
      • R.W.P. King , R.B. Mack , S.S. Sandler . (1968) , Arrays of cylindrical dipoles.
    5. 5)
      • G. Sinclair . Theory of models of electromagnetic systems. Proc. Inst. Radio Eng. , 1364 - 1370
    6. 6)
      • E.A.S. Cavell . An improved bridge method for the measurement of permittivity and loss up to 5 GHz. J. Sci. Instrum. , 401 - 403
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