Thermal and spectral characteristics of quasioptical filtering devices for cryoelectronic receiving systems

1Rudenko, EM, 1Korotash, IV, 1Shapovalov, AP, 2Tsybrii, ZF, 1Belogolovskii, MA, 1Polotskiy, DYu., 1Shlapak, Yu.V, 3Chmil', VM, 3Glushechenko, EM, 3Chmil', VV, 3Pylypenko, AM, 2Sizov, FF
1G.V. Kurdyumov Institute for Metal Physics of the NAS of Ukraine, Kyiv
2V.Ye. Lashkaryov Institute of Semiconductor Physics of the NAS of Ukraine, Kyiv
3PAO NPP "Saturn", Kyiv
Dopov. Nac. akad. nauk Ukr. 2015, 12:49-56
Section: Physics
Language: Ukrainian

We discuss the use of polymer films as infrared-radiation filters. Numerical calculations of thermal characteristics of polymer films placed on a section of a circular waveguide are performed. It is shown that an additional coverage of such films with a layer with a high thermal-conductivity coefficient is needed for the realization of effective infra-red quasioptical filtering devices. Implementation of such composed structures allowed us to maximize a barrage from parasitic thermal re-radiation in the infrared region of the spectrum and the transmission with the least losses of an information signal in the operating microwave range 2–36 GHz.

Keywords: aluminum nitride, cryoelectronics, infrared filters, polymer films, thermal physics
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