Title :
Measuring the extinction cross section
Author :
Larsson, Christer ; Sohl, Christian ; Gustafsson, Mats ; Kristensson, Gerhard
Abstract :
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.
Keywords :
radar cross-sections; time-domain analysis; coherent background subtraction; extinction cross section; microwave region; radar cross section; time domain gating; Anechoic chambers; Antenna measurements; Electromagnetic measurements; Electromagnetic scattering; Frequency; Optical scattering; Radar cross section; Radar scattering; Receiving antennas; Transmitting antennas;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
