Annular slot biomedical antenna for combined microwave heating and infrared thermography of the tissue

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

Abstract

A previously introduced annular slot antenna (ASA), utilized for combined microwave heating and radiometry for blood perfusion measurement of tissues, is modified to replace microwave radiometry with infrared thermography. Infrared (IR) thermography is a more convenient and cost effective alternative to microwave radiometry for skin/superficial and small animal (such as mice and rat) applications. An area with removed metallization is introduced around the central axis of the circular shape ASA, used for heating at 2.4 GHz. The S11 resonance frequency and/or depth change with the size of this area. Moreover, a hole at the middle of this area, made across the antenna, from top to bottom, allows the infrared beam to reach the skin. Simulations and measurement show that the presence of this hole has minimal impact on the performance of the ASA in terms of S11 and specific absorption rate (SAR) profile. In addition, the preliminary result of an IR camera captured images for a heating episode (2 W, at 2.45 GHz), conducted on a tissue phantom, is reported. Temperature rise of 5.7°C after 1 minute is observed at the center of the hole.

Original languageEnglish (US)
Title of host publication2019 IEEE Radio and Wireless Symposium, RWS 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781538659441
DOIs
StatePublished - May 14 2019
Event2019 IEEE Radio and Wireless Symposium, RWS 2019 - Orlando, United States
Duration: Jan 20 2019Jan 23 2019

Publication series

NameIEEE Radio and Wireless Symposium, RWS
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2019 IEEE Radio and Wireless Symposium, RWS 2019
CountryUnited States
CityOrlando
Period1/20/191/23/19

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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