Closed form expressions for Green's functions of microstrip structures on a uniaxially anisotropic substrate

Sudarshan Rao Nelatury, Ahmad Hoorfar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Closed form expressions for the Green's functions of a planar microstrip structure on an electrically thin uniaxially anisotropic substrate have been derived. The approach is to first obtain the quasi-dynamic term and refine its accuracy with a correction term valid for higher frequencies. The quasi-dynamic term conveys the influence of partial images and includes both transverse and vertical dielectric constants εrt and εrz. The correction term, on the other hand, results in an expression that includes εrz only. Results indicate excellent agreement with exact numerical solution over a significant band of frequencies and over a large range of spatial values.

Original languageEnglish (US)
Pages (from-to)161-168
Number of pages8
JournalInternational Journal of RF and Microwave Computer-Aided Engineering
Volume13
Issue number2
DOIs
StatePublished - Mar 2003

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Green's function
Substrates
Permittivity

All Science Journal Classification (ASJC) codes

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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abstract = "Closed form expressions for the Green's functions of a planar microstrip structure on an electrically thin uniaxially anisotropic substrate have been derived. The approach is to first obtain the quasi-dynamic term and refine its accuracy with a correction term valid for higher frequencies. The quasi-dynamic term conveys the influence of partial images and includes both transverse and vertical dielectric constants εrt and εrz. The correction term, on the other hand, results in an expression that includes εrz only. Results indicate excellent agreement with exact numerical solution over a significant band of frequencies and over a large range of spatial values.",
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AB - Closed form expressions for the Green's functions of a planar microstrip structure on an electrically thin uniaxially anisotropic substrate have been derived. The approach is to first obtain the quasi-dynamic term and refine its accuracy with a correction term valid for higher frequencies. The quasi-dynamic term conveys the influence of partial images and includes both transverse and vertical dielectric constants εrt and εrz. The correction term, on the other hand, results in an expression that includes εrz only. Results indicate excellent agreement with exact numerical solution over a significant band of frequencies and over a large range of spatial values.

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