Ultra-wideband characterization of lossy materials: short-pulse microwave measurements


Journal Article

Planar antennas are switched photoconductively to generate picosecond bursts of freely-propagating radiation with usable spectral amplitudes in the 5 to 85 GHz frequency range. This radiation is used to measure the frequency-dependent, complex index of refraction of dispersive materials in reflection and transmission; new deconvolution techniques are also demonstrated for extracting frequency-domain information from time-domain measurements. Experimental results are presented for the particular case of water, and a discussion is included on the relative merits of reflection and transmission time-domain measurements on materials.

Duke Authors

Cited Authors

  • Kralj, D; Carin, L

Published Date

  • January 1, 1993

Published In

Volume / Issue

  • 3 /

Start / End Page

  • 1239 - 1242

International Standard Serial Number (ISSN)

  • 0149-645X

Citation Source

  • Scopus