Dielectric sensitivity of different antennas types for microwave-based head imaging: Numerical study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F19%3A00334936" target="_blank" >RIV/68407700:21460/19:00334936 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric sensitivity of different antennas types for microwave-based head imaging: Numerical study

Popis výsledku v původním jazyce

A design of proper antenna element for microwave-based head imaging or brain stroke detection, respectively, is a crucial challenge in process of MWI system designing. The main aim of this contribution is to compare dielectric sensitivity of three different antennas types namely bow tie antenna, slot and waveguide. A numerical model of simplified rectangular head phantom and spherical stroke phantom in COMSOL Multiphysics were created. It was observed transmission coefficients S21 between each of antennas couple depend on different stroke phantom type (HEM or ISCH) and its diameter. The greatest change of S21 represented the greatest antenna sensitivity for given scenario. The waveguide antenna shown the least sensitivity at all and non-consistent behaviour due to simulated scenarios. The most sensitive antenna on change of dielectric parameters was bow tie antenna, but only for scenario with HEM stroke phantom placed in head model. The most consistent behaviour proved slot antenna and due to this fact is for us most suitable for microwave-head imaging application.

Název v anglickém jazyce

Dielectric sensitivity of different antennas types for microwave-based head imaging: Numerical study

Popis výsledku anglicky

A design of proper antenna element for microwave-based head imaging or brain stroke detection, respectively, is a crucial challenge in process of MWI system designing. The main aim of this contribution is to compare dielectric sensitivity of three different antennas types namely bow tie antenna, slot and waveguide. A numerical model of simplified rectangular head phantom and spherical stroke phantom in COMSOL Multiphysics were created. It was observed transmission coefficients S21 between each of antennas couple depend on different stroke phantom type (HEM or ISCH) and its diameter. The greatest change of S21 represented the greatest antenna sensitivity for given scenario. The waveguide antenna shown the least sensitivity at all and non-consistent behaviour due to simulated scenarios. The most sensitive antenna on change of dielectric parameters was bow tie antenna, but only for scenario with HEM stroke phantom placed in head model. The most consistent behaviour proved slot antenna and due to this fact is for us most suitable for microwave-head imaging application.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GJ17-00477Y" target="_blank" >GJ17-00477Y: Fyzikální podstata interakcí EM pole generovaného MTM strukturami s lidským tělem a studie možnosti jejich perspektivního využití v medicíně</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of European Microwave Conference in Central Europe, EuMCE 2019

ISBN

9782874870675

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

504-507

Název nakladatele

European Microwave Association (EuMA)

Místo vydání

Louvain-la-Neuve

Místo konání akce

Praha

Datum konání akce

13. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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