A wideband transmission line model for a slot antenna

J. E. Ruyle, J. T. Bernhard

Research output: Contribution to journalArticle

Abstract

The traditional transmission line model for a slot antenna is typically only useful for the prediction of the first resonant mode. Here, a wideband transmission line model for a slot antenna is presented that describes the antenna's input impedance more accurately than previously published work, particularly at frequencies above the first resonant mode. To do this, we develop three improvements to the model: a modal equation that better approximates the frequency-dependent voltage distribution in the slot; an expression that captures more fully the inductive nature of the shorted ends of the slot; and a conductance-per-unit-length to predict the structure's loss characteristics. The results of this new wideband transmission line model are compared to commercial full-wave simulations and measurements for validation.

Original languageEnglish (US)
Article number6352859
Pages (from-to)1407-1410
Number of pages4
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number3
DOIs
StatePublished - Jan 1 2013

Keywords

  • Slot
  • transmission line model

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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