Ю.Е. Седельников, О.В. Потапова
12
Focused antennas in problems of medical radiometry
© Yu.E. Sedel'nikov, O.V. Potapova
Kazan National Research Technical University named after A. N. Tupolev,
Kazan, 420010, Russia
In the study we obtained quantitative estimates of the impact of antenna parameters on
the quality indicators of resultant radiometric measurements. The antenna temperature
contrast is considered as the main indicator, which is proportional to the gain of the an-
tenna for the area near radiated field within the dissipative object. We investigated the
possibility of focusing for purposes of medical radiometry in different directions with
respect to the aperture. We estimated achievable gain value and considered dependences
of this indicator from the size of aperture, the depth of the focus point and frequency. In
addition, the article examines the issues of improving resolution using focused apertures.
Keywords
: radiometry, antenna temperature contrast, gain, area near the radiated field,
focused aperture.
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Sedelnikov Yu.E
., Dr. Sci. (Eng.), Professor of the Electronic and Telecommu-
nications Systems Department in Kazan National Research Technical University
named after A.N. Tupolev. Honored Scientist of the Republic Tatarstan. Author
of 5 monographs and more than 200 publications and inventions. Research inter-
ests include antennas, microwave technologies, electromagnetic compatibility of
radioelectronic devices. e-mail:
Potapova O.V.,
Ph.D., Assoc. Professor of the Electronic and Telecommunica-
tions systems Department in Kazan National Research Technical University
named after A.N. Tupolev. e-mail:
