Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample

Pratik Porwal; Azeemuddin Syed; Prabhakar Bhimalapuram; Tapan Kumar Sau

doi:10.1109/APMC.2017.8251703

Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample

Pratik Porwal, Azeemuddin Syed, Prabhakar Bhimalapuram, Tapan Kumar Sau

School of Engineering (Behrend)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

In this paper, RF resonant sensor is designed for measurement of complex permittivity of unknown sample. It takes advantage of peano curve fractal geometry (i.e. higher capacitance in minimum area). It operates in the ISM (industrial, scientific and medical) frequency band of 4-5 GHz. An empirical model of sensor is developed for the accurate calculation of complex permittivity of an unknown sample in terms of shifts in the resonant frequencies and reflection coefficients (S₁₁) under loaded condition. Due to homogeneous E-field at fractal capacitor, placement position of sample will not affect the sensitivity. Significant frequency shifts as high as 60 M Hz, 80 M Hz, 116 M Hz and 134 M Hz are observed for relative permittivity of 5.4, 6.5, 8.9 and 10.6 respectively.

Original language	English (US)
Title of host publication	2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings
Editors	Idnin Pasya
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1310-1312
Number of pages	3
ISBN (Electronic)	9781538606407
DOIs	https://doi.org/10.1109/APMC.2017.8251703
State	Published - Jun 28 2017
Event	2017 IEEE Asia Pacific Microwave Conference, APMC 2017 - Kuala Lumpur, Malaysia Duration: Nov 13 2017 → Nov 16 2017

Publication series

Name	Asia-Pacific Microwave Conference Proceedings, APMC

Conference

Conference	2017 IEEE Asia Pacific Microwave Conference, APMC 2017
Country/Territory	Malaysia
City	Kuala Lumpur
Period	11/13/17 → 11/16/17

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/APMC.2017.8251703

Cite this

Porwal, P., Syed, A., Bhimalapuram, P., & Sau, T. K. (2017). Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample. In I. Pasya (Ed.), 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings (pp. 1310-1312). (Asia-Pacific Microwave Conference Proceedings, APMC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMC.2017.8251703

Porwal, Pratik ; Syed, Azeemuddin ; Bhimalapuram, Prabhakar et al. / Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample. 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings. editor / Idnin Pasya. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1310-1312 (Asia-Pacific Microwave Conference Proceedings, APMC).

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title = "Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample",

abstract = "In this paper, RF resonant sensor is designed for measurement of complex permittivity of unknown sample. It takes advantage of peano curve fractal geometry (i.e. higher capacitance in minimum area). It operates in the ISM (industrial, scientific and medical) frequency band of 4-5 GHz. An empirical model of sensor is developed for the accurate calculation of complex permittivity of an unknown sample in terms of shifts in the resonant frequencies and reflection coefficients (S11) under loaded condition. Due to homogeneous E-field at fractal capacitor, placement position of sample will not affect the sensitivity. Significant frequency shifts as high as 60 M Hz, 80 M Hz, 116 M Hz and 134 M Hz are observed for relative permittivity of 5.4, 6.5, 8.9 and 10.6 respectively.",

author = "Pratik Porwal and Azeemuddin Syed and Prabhakar Bhimalapuram and Sau, {Tapan Kumar}",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE Asia Pacific Microwave Conference, APMC 2017 ; Conference date: 13-11-2017 Through 16-11-2017",

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Porwal, P, Syed, A, Bhimalapuram, P & Sau, TK 2017, Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample. in I Pasya (ed.), 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings. Asia-Pacific Microwave Conference Proceedings, APMC, Institute of Electrical and Electronics Engineers Inc., pp. 1310-1312, 2017 IEEE Asia Pacific Microwave Conference, APMC 2017, Kuala Lumpur, Malaysia, 11/13/17. https://doi.org/10.1109/APMC.2017.8251703

Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample. / Porwal, Pratik; Syed, Azeemuddin; Bhimalapuram, Prabhakar et al.
2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings. ed. / Idnin Pasya. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1310-1312 (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Sau, Tapan Kumar

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AB - In this paper, RF resonant sensor is designed for measurement of complex permittivity of unknown sample. It takes advantage of peano curve fractal geometry (i.e. higher capacitance in minimum area). It operates in the ISM (industrial, scientific and medical) frequency band of 4-5 GHz. An empirical model of sensor is developed for the accurate calculation of complex permittivity of an unknown sample in terms of shifts in the resonant frequencies and reflection coefficients (S11) under loaded condition. Due to homogeneous E-field at fractal capacitor, placement position of sample will not affect the sensitivity. Significant frequency shifts as high as 60 M Hz, 80 M Hz, 116 M Hz and 134 M Hz are observed for relative permittivity of 5.4, 6.5, 8.9 and 10.6 respectively.

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Porwal P, Syed A, Bhimalapuram P, Sau TK. Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample. In Pasya I, editor, 2017 Asia Pacific Microwave Conference, APMC 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1310-1312. (Asia-Pacific Microwave Conference Proceedings, APMC). doi: 10.1109/APMC.2017.8251703

Design of fractal geometry based rf sensor for detection of complex permittivity of unknown sample

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