Determination of complex permittivity of low-loss dielectrics

Robert H. Voelker, Guang Tsai Lei, Guang Wen Pan, Barry Kent Gilbert

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A new high-order-mode analytical method is described for calculating the frequency-dependent complex permittivity of a low-loss dielectric in a parallel-plate structure using a planar microwave circuit model. An analytical expression for the complex permittivity is derived in terms of the terminal impedance at a modal resonant frequency of the structure. The derivation provides physical and mathematical insight into the relation between complex permittivity and port impedance. The technique is validated by good agreement between manufacturer's specifications and complex permittivity calculated from measurements near resonant frequencies for a printed circuit board (PCB).

Original languageEnglish (US)
Pages (from-to)1955-1960
Number of pages6
JournalIEEE Transactions on Microwave Theory and Techniques
Volume45
Issue number10 PART 2
DOIs
StatePublished - 1997
Externally publishedYes

Fingerprint

Dielectric losses
dielectric loss
Permittivity
permittivity
resonant frequencies
Natural frequencies
impedance
Microwave circuits
Acoustic impedance
microwave circuits
printed circuits
circuit boards
parallel plates
Printed circuit boards
specifications
derivation
Specifications

Keywords

  • Dielectric losses
  • Dielectric measurements
  • Highspeed circuits/devices
  • Microwave circuits
  • Microwave measurements
  • Microwave resonators
  • Multichip modules
  • Printed circuits

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Determination of complex permittivity of low-loss dielectrics. / Voelker, Robert H.; Lei, Guang Tsai; Pan, Guang Wen; Gilbert, Barry Kent.

In: IEEE Transactions on Microwave Theory and Techniques, Vol. 45, No. 10 PART 2, 1997, p. 1955-1960.

Research output: Contribution to journalArticle

Voelker, Robert H. ; Lei, Guang Tsai ; Pan, Guang Wen ; Gilbert, Barry Kent. / Determination of complex permittivity of low-loss dielectrics. In: IEEE Transactions on Microwave Theory and Techniques. 1997 ; Vol. 45, No. 10 PART 2. pp. 1955-1960.
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