Co-deposited Si-Al thin films as a base material to decrease the reflectance in the millimeter-band frequencies Anastasia M. Kartashova,1, Larisa D. Volkovoynova,1, Alexey A. Serdobintsev,1, Andrey V. Starodubov,1,2, Anton A. Kozyrev,3,1, Ilya O. Kozhevnikov,1, Anton M. Tolstoi,4, Anton M. Pavlov,1, Daniil N. Bratashov,1
1 Saratov State University, Saratov, Russia 2 Saratov Branch, V.A. Kotel’nikov Institute of Radio Engineering and Electronics RAS, Saratov, Russia 3 National Research Nuclear University MEPHI, Moscow, Russia 4 JSC "Saratovstroysteklo", Saratov, Russia