An improved modeling of TDR signal propagation for measuring complex dielectric permittivity

Chih-Ping Lin*, Shr Hong Tang, Chun Hung Lin, Chih Chung Chung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Time domain reflectometry (TDR) is a measurement technique based upon transmission line theory. The solutions of transmission line equations are reformulated in terms of independent physical properties, instead of coupled per-unit-length circuit parameters. The complete TDR response is effectively modeled by a non-uniform transmission line using the non-recursive ABCD matrix approach. Approaches to calibrate line parameters and perform TDR measurements based upon such model are introduced with an example on dielectric spectroscopy. TDR modeling in terms of decoupled physical parameters and non-recursive algorithm allows more convenient calibration of line parameters and facilitates interpretation of TDR measurements.

Original languageEnglish
Pages (from-to)827-834
Number of pages8
JournalJournal of Earth Science
Volume26
Issue number6
DOIs
StatePublished - Dec 2015

Keywords

  • dielectric measurements
  • soil measurements
  • spectroscopy
  • time domain reflectometry
  • transmission line measurements
  • transmission line theory

Fingerprint Dive into the research topics of 'An improved modeling of TDR signal propagation for measuring complex dielectric permittivity'. Together they form a unique fingerprint.

Cite this