Analysis of error due to exclusion of higher modes on complex permittivity measurement using waveguide with flange

Kouji Shibata, Osamu Hashimoto, Ramesh Pokharel

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this letter, we discuss the measurement error due to the exclusion of the higher modes when a waveguide with a flange is inserted with lossy dielectric material. The reflection coefficient is calculated by a spectrum-domain approach (SDA). which uses only the dominant (TE10) mode to realize a simplified nondestructive measurement of complex permittivity of lossy dielectric sheets. The analysis shows that the error due to the exclusion of the higher modes decreases as complex permittivity increases. Consequently, we have confirmed that a simplified measurement of complex permittivity is possible by a coverage limitation with the SDA, which excludes the higher modes.

Original languageEnglish
Pages (from-to)139-142
Number of pages4
JournalIEICE Transactions on Electronics
VolumeE88-C
Issue number1
DOIs
Publication statusPublished - Jan 1 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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