Результаты исследований: Глава в книге, отчете, сборнике статей › Глава › Рецензирование
Результаты исследований: Глава в книге, отчете, сборнике статей › Глава › Рецензирование
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TY - CHAP
T1 - FEATURES OF ANTENNA-APPLICATOR FOR FUNCTIONAL STUDIES OF THE HUMAN BRAIN
T2 - chapter in book
AU - Sedelnikov, Yu E
AU - Kublanov, V. S.
AU - Baranov, S. A.
AU - Borisov, V. I.
PY - 2020
Y1 - 2020
N2 - In the article, the characteristics of antenna-applicators (AA) for the contact microwave radiometers are analyzed. The bow-tie AA (in which the near-field and transition regions better match with the feeder in a wide frequency band) is preferred for monitoring the brain microwave radiation. Modelling these bow-tie AA with contact pins was conducted. The simulation results have confirmed that the increase in length of the pins up to 5 mm reduces the characteristic impedance similar to that of flat AA. Meanwhile, increased thickness of the vibrator does not degrade receiving properties of the AA. The modelling results are confirmed by laboratory studies that have examined the characteristics of the bow-tie AA with pins and flat AA without pins. It is shown that the introduction of designed AA with pins significantly reduced the impact of hair on the matching of the AA and body. In the study of changes in the characteristics of AA for 30 min, the change rate matching such antennas with the brain tissue changes by less than two times compared with that matching AA without pins.
AB - In the article, the characteristics of antenna-applicators (AA) for the contact microwave radiometers are analyzed. The bow-tie AA (in which the near-field and transition regions better match with the feeder in a wide frequency band) is preferred for monitoring the brain microwave radiation. Modelling these bow-tie AA with contact pins was conducted. The simulation results have confirmed that the increase in length of the pins up to 5 mm reduces the characteristic impedance similar to that of flat AA. Meanwhile, increased thickness of the vibrator does not degrade receiving properties of the AA. The modelling results are confirmed by laboratory studies that have examined the characteristics of the bow-tie AA with pins and flat AA without pins. It is shown that the introduction of designed AA with pins significantly reduced the impact of hair on the matching of the AA and body. In the study of changes in the characteristics of AA for 30 min, the change rate matching such antennas with the brain tissue changes by less than two times compared with that matching AA without pins.
UR - https://www.elibrary.ru/item.asp?id=44474239
U2 - 10.1007/978-3-030-37514-0_17
DO - 10.1007/978-3-030-37514-0_17
M3 - Chapter
SN - 978-3-030-37513-3
T3 - Сер. Innovation and Discovery in Russian Science and Engineering (IDRSE)
SP - 179
EP - 189
BT - ADVANCES IN INFORMATION TECHNOLOGIES, TELECOMMUNICATION, AND RADIOELECTRONICS
A2 - Kumkov, S.
A2 - Shabunin, S.
A2 - Singellakis, S.
PB - Springer
CY - Cham
ER -
ID: 20444829