Here we present evaluations of the systematic effects induced by flat isotropic dielectric slabs by using the Mueller matrix formalism. We find that isotropic dielectrics can produce spurious polarization either when transmit anisotropic diffuse radiation or are not thermally uniform. We will provide detailed analysis for the 32 GHz@10% band case, but some results about 90 GHz@20% and 150 GHz@30% bands will be also shown. To support the analytical approach we have performed some measurements of the return loss of a teflon slab confirming the theoretical forecast.
Macculi, C., Zannoni, M., Peverini, O., Carretti, E., Nesti, R., Tascone, R., et al. (2008). Systematic effects induced by flat slabs of isotropic dielectrics: From microwave to millimeter wavelengths. NEW ASTRONOMY REVIEWS, 51(3-4), 266-274 [10.1016/j.newar.2006.11.045].
Systematic effects induced by flat slabs of isotropic dielectrics: From microwave to millimeter wavelengths
ZANNONI, MARIO;
2008
Abstract
Here we present evaluations of the systematic effects induced by flat isotropic dielectric slabs by using the Mueller matrix formalism. We find that isotropic dielectrics can produce spurious polarization either when transmit anisotropic diffuse radiation or are not thermally uniform. We will provide detailed analysis for the 32 GHz@10% band case, but some results about 90 GHz@20% and 150 GHz@30% bands will be also shown. To support the analytical approach we have performed some measurements of the return loss of a teflon slab confirming the theoretical forecast.
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