Quasi-optical detector section

Summary form only given. Due to small wavelengths, the bandwidths of short millimeter and submillimeter waves substantially differ from both UHF and optical bandwidths. In structures of this bandwidth, application of waveguide technologies that are traditional for UHF is complicated due to small dimensions of both waveguides and structural elements. These difficulties led to the application of optical methods in combination with elements of UHF devices and resulted in creation of so-called quasi-optical devices. This article, offers a model of quasi-optical detector section constructed and tested in 2.1-2.4 mm bandwidth.