Radiation of Edge Waves: Theory Based on the Reciprocity Theorem

Radiation of Edge Waves: Theory Based on the Reciprocity Theorem

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This chapter constructs an approximate theory of the radiation of higher-order edge waves. This theory is based on the reciprocity theorem and provides a straightforward representation of the scattered field. It was used to calculate the scattering pattern for thin cylindrical conductors (dipoles) and strips. The expressions obtained are valid for arbitrary directions of observation and illumination, satisfy the reciprocity theorem, and permit calculations to be made with satisfactory accuracy, provided kl ≫ 1.

Chapter Contents:

  • 7.1 Calculation of the Far Field
  • 7.2 Radiation from a Transmitting Dipole
  • 7.3 First and Second-Order Diffraction at a Passive Dipole
  • 7.4 Multiple Diffraction of Edge Waves
  • 7.5 Total Scattered Field
  • 7.6 Short, Passive Dipole
  • 7.7 Results of Numerical Calculations
  • 7.8 Radiation of Edge Waves from a Strip
  • 7.9 Conclusion

Inspec keywords: electromagnetic wave scattering; approximation theory

Other keywords: dipoles; scattering pattern; approximate theory; reciprocity theorem; thin cylindrical conductor; higher-order edge wave radiation; strips; scattered field

Subjects: Electromagnetic waves: theory; Numerical approximation and analysis; Electromagnetic wave propagation; Interpolation and function approximation (numerical analysis)

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