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
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DOI - Digital Object Identifier
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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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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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
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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