Measuring the Extinction Cross Section

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 4Sprache: EnglischTyp: PDF

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Larsson, Christer; Sohl, Christian; Gustafsson, Mats; Kristensson, Gerhard (Department of Electrical and Information Technology, Lund University, P.O. Box 118, S-221 00 Lund, Sweden)

This paper describes a method to determine the extinction cross section for a very large bandwidth in the microwave region. The method is based on measurements of the radar cross section in the forward direction to calculate the extinction cross section. The method is applicable to samples of arbitrary shape and composition. Coherent background subtraction and time domain gating is used for the frequency range [2.5, 38] GHz to increase the sensitivity. The efficiency of the background subtraction and the accuracy of the measurements are estimated.