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A Numerical Study of Influence of a Matching Medium on Transmission Coefficients between Antennas Used in Microwave Imaging System

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F18%3A00323993" target="_blank" >RIV/68407700:21460/18:00323993 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A Numerical Study of Influence of a Matching Medium on Transmission Coefficients between Antennas Used in Microwave Imaging System

  • Original language description

    New perspective methods for medical imaging are constantly developing and improving in present time. One of these methods is so-called Microwave Imaging (MWI), which uses non-harmful and non-ionizing microwave radiation and its research is focused mainly on two areas, breast cancer detection and brain stroke classification. At ELEDIA@CTU research centre was developed the prototype of MWI system for brain stroke detection and classification. For testing of the prototype, realistic phantoms of a human head are fabricating. To provide ideal contact between antennas used in MWI system and phantom matching mediums are using. The contribution presents some numerical results of the influence of three different matching mediums to transmission coefficients (S parameters) measured by MWI system in the environment of numerical simulator COMSOL Multiphysics. Numerical simulations showed that for distilled water used as matching medium the highest values of transmission coefficients (-50 dB) are gained but these values are distorted by low conductivity of distilled water which caused propagation of EM wave through matching medium and not through phantom of human head. On the contrary more realistic results but lower values of transmission coefficients (-70 dB) are gained with mineral/salt water or ethanol used as matching medium. Results will help in near future to improve experiments with MWI system and heterogeneous layered realistic phantom where matching medium needs to be filled between antennas and phantom of human head.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

    <a href="/en/project/GJ17-00477Y" target="_blank" >GJ17-00477Y: Physical nature of interactions of EM fields generated by MTM structures with human body and study of their prospective use in medicine</a><br>

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    2018 Progress In Electromagnetics Research Symposium (PIERS | Toyama)

  • ISBN

    9784885523151

  • ISSN

  • e-ISSN

    1931-7360

  • Number of pages

    5

  • Pages from-to

    1076-1080

  • Publisher name

    Electromagnetics Academy

  • Place of publication

    Cambridge

  • Event location

    Toyama

  • Event date

    Aug 1, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000458673700190