Title :
Wideband dispersion measurements of water in reflection and transmission
Author :
Kralj, David ; Carin, Lawrence
Author_Institution :
Dept. of Electr. Eng., Polytechnic Univ., Brooklyn, NY, USA
fDate :
4/1/1994 12:00:00 AM
Abstract :
Planar antennas are switched photoconductively to generate picosecond bursts of freely-propagating radiation with usable spectral amplitudes from 5 to 85 GHz. This radiation is used to perform reflection and transmission measurements on materials, with experimental results presented for the complex index of refraction of water. We compare the relative merits of time-domain reflection and transmission material measurements and present new deconvolution techniques for extracting frequency-domain information from time-domain measurements
Keywords :
dispersion (wave); electromagnetic wave reflection; electromagnetic wave transmission; microwave measurement; refractive index measurement; water; 5 to 85 GHz; H2O; complex index of refraction; deconvolution techniques; freely-propagating radiation; frequency-domain information; photoconductively switched antenna; picosecond bursts; planar antennas; reflection measurements; time-domain measurements; transmission measurements; water; wideband dispersion measurements; Antenna measurements; Dispersion; Frequency measurement; Performance evaluation; Photoconducting materials; Photoconductivity; Planar arrays; Reflection; Time domain analysis; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
