Frequency Division of Channels in Two-Band Receiver of Radio-Telescope PT-7,5

The quasi-optical channel division system of the two-band receiver is described for the radio-telescope PT-7,5 of the Bauman Moscow State Technical University. Design problems for the frequency selective surfaces and methods to measure their frequency response are considered. Schemes of the quasi-optical channel division system and measuring equipment stand are presented together with the frequency response diagrams for the produced frequency selective surfaces.