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Free space technique for measuring the complex permittivity and permeability in the millimeter wave range

  • Technical University of Munich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

20 Scopus citations

Abstract

A new technique is presented for measuring the complex permittivity ε = ε′-jε″ and permeability μ = μ′-jμ″ of matter at millimeter wavelengths. A direct transmission path is established between two horn antennas. A planar material sample is inserted into the path between the antennas and the transmission coefficient is measured. Subsequently, the sample is used as a reflector between the transmitting and receiving antennas. The angle of incidence is varied and both the horizontal and the vertical polarization are measured. With glass samples the accuracy of better than 0.04% and 0.5% for ε′ and ε″, respectively, has been achieved at 94 GHz. The sample preparation is very easy and nondestructive.

Original languageEnglish
Title of host publicationIEEE MTT-S International Microwave Symposium Digest
PublisherPubl by IEEE
Pages1465-1468
Number of pages4
ISBN (Print)0780317793
StatePublished - 1994
EventProceedings of the IEEE MTT-S International Microwave Symposium - San Diego, CA, USA
Duration: 23 May 199427 May 1994

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume3
ISSN (Print)0149-645X

Conference

ConferenceProceedings of the IEEE MTT-S International Microwave Symposium
CitySan Diego, CA, USA
Period23/05/9427/05/94

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