A.G. Gudkov – Dr.Sc. (Eng.), Professor; General Director,

Research Institute RL Bauman Moscow State Technical University; LLC NPI «HYPERION» (Moscow, Russia) E-mail: ooo.giperion@gmail.com

S.G. Vesnin  – Ph.D. (Eng.), Senior Research Scientist; Chief Designer,

Research Institute RL Bauman Moscow State Technical University; LLC «RTM Diagnostics» (Moscow, Russia) E-mail: vesnin47@gmail.com

V.Yu. Leushin – Ph.D. (Eng.), Senior Research Scientist; Deputy General Director,

Research Institute RL Bauman Moscow State Technical University; LLC NPI «HYPERION» (Moscow, Russia) E-mail: ra3bu@yandex.ru

S.V. Agasieva – Ph.D. (Eng.), Associate Professor; Senior Research Scientist,

RUDN University; Research Institute RL Bauman Moscow State Technical University (Moscow, Russia)

S.V. Chizhikov – Post-graduate Student; Junior Research Scientist; Technician,

Bauman Moscow State Technical University; Research Institute RL Bauman Moscow State Technical University;  YICC «Cube» (Moscow, Russia)

E-mail: tehnoinnov@mail.ru

V.N. Vyuginov – Ph.D. (Phys.-Math.), Associate Professor,

St. Petersburg State Electrotechnical University «LETI» (St. Petersburg, Russia) E-mail: vvyuginov@yandex.ru

M.K. Sedankin – Ph.D. (Eng.), Associate Professor; Senior Research Scientist,

National Research University «Moscow Power Engineering Institute»; Burnasyan Federal Medical Biophysical Center  of Federal Medical Biological Agency (Moscow, Russia)

E-mail: msedankin@yandex.ru

E.A. Gudkov – Junior Research Scientist,

Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (Moscow, Russia) E-mail: eh1770802@gmail.com

Currently available diagnostic devices using the microwave radiometry method are single-channel and single-frequency devices. However, to improve the efficiency of diagnostics, it is necessary to have information about the internal temperatures and their dynamics at several points of the body simultaneously and at different depths. Combining the multichannel and multifrequency principles in one device will require fundamentally new technical solutions, as well as a significant reduction in the size of the radiometer, which  implies the use of technologies of monolithic integrated circuits. The objective of the work was to analyze domestic and foreign scientific and technical literature, to analyze modern circuitry and technological solutions of medical radiothermographs, broadband applicator antennas, and, on the basis of the information received, to determine the principle of constructing a multichannel multifrequency radiothermograph, as well as the possibility of its implementation using the technology of monolithic integrated schemes.  Today, microwave radiometry presents various options for constructing microwave medical radiothermographs. There are both multichannel and multifrequency radiothermographs, in which one or multiple antennas and microwave receivers can be used, respectively for each measurement channel. As an optimal design of a microwave miniature multifrequency multichannel radiothermograph, it is proposed to use an M-frequency microwave receiver with a microwave switch for N-channels, respectively for N ultra-wideband antennas. The proposed version of the scheme for constructing a multichannel multifrequency radiothermograph can be used in research related to the creation of a prototype of a medical device.

Gudkov A.G., Vesnin S.G., Leushin V.Yu., Agasieva S.V., Chizhikov S.V., Vyuginov V.N., Sedankin M.K., Gudkov E.A. Construction principles of a multichannel multifrequency radiothermograph based on monolithic integrated circuits.

Achievements of modern radioelectronics. 2020. V. 74. № 10. P. 30–49. DOI: 10.18127/j20700784-202010-02.  [in Russian]

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