TY - JOUR
T1 - Interference Enhanced Biomedical Antenna for Combined Heating and Radiometry Application
AU - Tofighi, Mohammad Reza
AU - Pardeshi, Jayendrasingh R.
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2017
Y1 - 2017
N2 - Successful proof-of-concept studies of biomedical devices, using combined heating and radiometry for noninvasive assessment of tissue by thermal methods, requires innovative approaches of biomedical antenna design and testing, and proper radio frequency interference (RFI) mitigation. In this letter, a dual-mode (heating/radiometry) antenna, for 0.9 GHz heating and ∼3.7 GHz radiometry, and methods for the RFI reduction and assessment are introduced. The impact of different dielectric barriers needed for interfacing with a perfused tissue phantom on the antenna performance is also demonstrated. The antenna performance remains unchanged as long as the overall thickness of the superstrate and barrier is maintained the same. Tests are performed on a novel phantom, mimicking a perfused tissue, and pertinent radiometric measurements are conducted for the first time. Evaluation of the radiometer output and direct RFI measurement both reveal marked reduction in the RFI effect, after the inclusion of a back housing and an RF choke.
AB - Successful proof-of-concept studies of biomedical devices, using combined heating and radiometry for noninvasive assessment of tissue by thermal methods, requires innovative approaches of biomedical antenna design and testing, and proper radio frequency interference (RFI) mitigation. In this letter, a dual-mode (heating/radiometry) antenna, for 0.9 GHz heating and ∼3.7 GHz radiometry, and methods for the RFI reduction and assessment are introduced. The impact of different dielectric barriers needed for interfacing with a perfused tissue phantom on the antenna performance is also demonstrated. The antenna performance remains unchanged as long as the overall thickness of the superstrate and barrier is maintained the same. Tests are performed on a novel phantom, mimicking a perfused tissue, and pertinent radiometric measurements are conducted for the first time. Evaluation of the radiometer output and direct RFI measurement both reveal marked reduction in the RFI effect, after the inclusion of a back housing and an RF choke.
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U2 - 10.1109/LAWP.2017.2685503
DO - 10.1109/LAWP.2017.2685503
M3 - Article
AN - SCOPUS:85029125420
SN - 1536-1225
VL - 16
SP - 1895
EP - 1898
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7883885
ER -