S.V. Chizhikov – Post-graduate Student, 

Department of Instrumentation Technology, Bauman Moscow State Technical University

E-mail: chigikov95@mail.ru

Yu.V. Solov’ev – Ph.D. (Eng.), Deputy Director, JSC “Svetlana-Electronpribor” (St.-Petersburg); 

Senior Research Scientist, Research Institute of Radioelectronics and Laser Engineering  at Bauman Moscow State Technical University

E-mail: solovev@svetlana-ep.ru

Statement of the problem. The method of microwave radiothermometry allows to get information about the internal temperature of the patient's tissues by measuring the intensity of their own electromagnetic radiation in the ultra-high frequency range. Measurement of the power of the noise signal coming from the antenna output occurs in microwave receivers-radiothermometers, which have a number of significant requirements in terms of receiving, amplifying and processing the microwave signal.

The use of the element base in a monolithic design will increase the variability of circuit solutions in the development of modern medical microwave radiothermometers, thereby, improve the technical characteristics and expand the functionality of devices.

Aim of the work – the purpose of work is to carry out an analytical review of the element base of the microwave range, made in a monolithic integrated design, for use in medical microwave radiothermometers.

Results. The analysis of the main design elements of the radiothermometer receiver from the point of view of their possible application in a monolithic integrated design was carried out. The analytical review of the microwave element base in a monolithic design showed wide opportunities in the field of circuit solutions based on the domestic element component base for use in medical radiothermometers.

Practical significance. The use of monolithic integrated circuits for various purposes based on semiconductor heterostructures materials group A3B5 allows to ensure the required performance of the radiometer in terms of reception, amplification and processing of the microwave signal, to significantly increase functionality and implement structural performance with a significant reduction in weight and size characteristics of the developed medical device.

The research was carried out with the financial support of the Russian science Foundation in the framework of agreement No. 19-1900349 in the theme: “A method and a multichannel multifrequency microwave radiothermography on the basis of monolithic integrated circuits for finding the 3D distribution and dynamics of brightness temperature in the depths of the human body”.

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