Design of FSS unit-cell for energy concentration on deep-seated human tissue

Woo Cheol Choi, Seonho Lim, Young Joong Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A unit-cell of Frequency Selective Surface (FSS) which allows for a concentration of the electromagnetic (EM) energy on a deep-seated tissue in the human body is proposed. The proposed FSS unit-cell can change the phase response of the EM wave in a wide phase range, while maintaining the minimum variation of the transmission magnitude within 1 dB. By integrating the unit-cell into the phased-array configuration, the EM energy can be localized into the deep-seated tissue by compensating the phase-delays for different electrical lengths between the FSS-array and the desired target. It leads to the constructive interference of the EM field at the target tissue, so as to deliver strong energy into the human body. The unit-cell consisting of the three-layer metallization is embedded in the water-bolus which provides the optimal condition for the wave-penetration into the complex dielectric media. The FSS unit-cell is analyzed by using the equivalent circuit model and the transmission characteristic of the EM wave passing through the FSS is evaluated on the phantom as an equivalent model for human body. The proposed unit-cell is designed at 915 MHz allocated in Industrial Scientific Medical frequency band.

Original languageEnglish
Title of host publication2017 11th European Conference on Antennas and Propagation, EUCAP 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1069-1072
Number of pages4
ISBN (Electronic)9788890701870
DOIs
Publication statusPublished - 2017 May 15
Event11th European Conference on Antennas and Propagation, EUCAP 2017 - Paris, France
Duration: 2017 Mar 192017 Mar 24

Publication series

Name2017 11th European Conference on Antennas and Propagation, EUCAP 2017

Other

Other11th European Conference on Antennas and Propagation, EUCAP 2017
CountryFrance
CityParis
Period17/3/1917/3/24

Fingerprint

Frequency selective surfaces
selective surfaces
Electromagnetic waves
Tissue
energy
human body
cells
interference
electromagnetic radiation
electromagnetism
phase response
water
Metallizing
Equivalent circuits
Electromagnetic fields
Frequency bands
phased arrays
equivalent circuits
electromagnetic fields
penetration

All Science Journal Classification (ASJC) codes

  • Safety Research
  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

Cite this

Choi, W. C., Lim, S., & Yoon, Y. J. (2017). Design of FSS unit-cell for energy concentration on deep-seated human tissue. In 2017 11th European Conference on Antennas and Propagation, EUCAP 2017 (pp. 1069-1072). [7928701] (2017 11th European Conference on Antennas and Propagation, EUCAP 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/EuCAP.2017.7928701
Choi, Woo Cheol ; Lim, Seonho ; Yoon, Young Joong. / Design of FSS unit-cell for energy concentration on deep-seated human tissue. 2017 11th European Conference on Antennas and Propagation, EUCAP 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1069-1072 (2017 11th European Conference on Antennas and Propagation, EUCAP 2017).
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abstract = "A unit-cell of Frequency Selective Surface (FSS) which allows for a concentration of the electromagnetic (EM) energy on a deep-seated tissue in the human body is proposed. The proposed FSS unit-cell can change the phase response of the EM wave in a wide phase range, while maintaining the minimum variation of the transmission magnitude within 1 dB. By integrating the unit-cell into the phased-array configuration, the EM energy can be localized into the deep-seated tissue by compensating the phase-delays for different electrical lengths between the FSS-array and the desired target. It leads to the constructive interference of the EM field at the target tissue, so as to deliver strong energy into the human body. The unit-cell consisting of the three-layer metallization is embedded in the water-bolus which provides the optimal condition for the wave-penetration into the complex dielectric media. The FSS unit-cell is analyzed by using the equivalent circuit model and the transmission characteristic of the EM wave passing through the FSS is evaluated on the phantom as an equivalent model for human body. The proposed unit-cell is designed at 915 MHz allocated in Industrial Scientific Medical frequency band.",
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Choi, WC, Lim, S & Yoon, YJ 2017, Design of FSS unit-cell for energy concentration on deep-seated human tissue. in 2017 11th European Conference on Antennas and Propagation, EUCAP 2017., 7928701, 2017 11th European Conference on Antennas and Propagation, EUCAP 2017, Institute of Electrical and Electronics Engineers Inc., pp. 1069-1072, 11th European Conference on Antennas and Propagation, EUCAP 2017, Paris, France, 17/3/19. https://doi.org/10.23919/EuCAP.2017.7928701

Design of FSS unit-cell for energy concentration on deep-seated human tissue. / Choi, Woo Cheol; Lim, Seonho; Yoon, Young Joong.

2017 11th European Conference on Antennas and Propagation, EUCAP 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1069-1072 7928701 (2017 11th European Conference on Antennas and Propagation, EUCAP 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Choi WC, Lim S, Yoon YJ. Design of FSS unit-cell for energy concentration on deep-seated human tissue. In 2017 11th European Conference on Antennas and Propagation, EUCAP 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1069-1072. 7928701. (2017 11th European Conference on Antennas and Propagation, EUCAP 2017). https://doi.org/10.23919/EuCAP.2017.7928701