Design and Calibration of a Large Broadband Dielectric Measurement Cell

Weng Cho Chew, Kenneth J. Olp, Gregory P. Otto

Research output: Contribution to journalArticlepeer-review


A large dielectric measurement cell is designed and calibrated to operate over a 1 MHz-3 GHz frequency range. The cell is much larger than the commercially available cells and is useful for measuring samples with large-grain heterogeneities like concrete or rock. The cell works on a coaxial transmission line principle. Once the S parameters of the two end sections are calibrated, the S parameters of the sample region can be found. Then the complex permittivity of the sample can be de-embedded. Because of the broad frequency range, three calibration methods are used for low-, intermediate-, and high-frequency ranges. The accuracy of the cell is tested by measuring materials of a known dielectric constant. Error analysis is also performed to determine the uncertainty of the measurements.

Original languageEnglish (US)
Pages (from-to)42-47
Number of pages6
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number1
StatePublished - Jan 1991
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Earth and Planetary Sciences(all)


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