Improved plane-wave illumination for TLM method

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Improved plane-wave illumination for TLM method

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An efficient solution to the problems associated with plane wave illumination of a scattering body in a TLM mesh is presented. The solution is equivalent to a partial implementation of the Huygens surface used in the time-domain finite difference (TDFD) method, but, additionally, accounts for dispersion effects.

Inspec keywords: matrix algebra; numerical analysis; transmission line theory

Other keywords: TLM method; plane-wave illumination; time-domain finite difference method; transmission line matrix method; electromagnetic scattering; Huygens surface

Subjects: Numerical approximation and analysis; Transmission line theory; Electromagnetic wave propagation; Other numerical methods; Electromagnetic waves: theory

References

    1. 1)
      • Johns, P.B., Mallik, A.: `EMP response of aircraft structures using transmission-like modelling', IEEE Int. Symp. on Electromagnetic Compatibility, 5–7 March 1985, Zurich, Switzerland, p. 387–389.
    2. 2)
      • D.E. Mereweather , R. Fisher , F.W. Smith . On implementing a numeric Huygen's source scheme in a finite difference program to illuminate scattering bodies. IEEE Trans. Nuclear Science , 1829 - 1833
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