Comparison of three UWB microwave antennas intended for brain stroke detection system

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00305584" target="_blank" >RIV/68407700:21230/16:00305584 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21460/16:00305584

Result on the web

<a href="http://www.piers.org/piers2016Shanghai/programfinal.php" target="_blank" >http://www.piers.org/piers2016Shanghai/programfinal.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/PIERS.2016.7735714" target="_blank" >10.1109/PIERS.2016.7735714</a>

Result language

angličtina

Original language name

Comparison of three UWB microwave antennas intended for brain stroke detection system

Original language description

Introduction: Brain stroke is after heart attack the second main reason for sudden death in the Czech Republic. Early start of appropriate treatment is crucial for patient's perspectives. The brain stroke detection system is offering a relatively cheap diagnostic tool which could be able to distinguish two types of brain strokes: ischemic stroke and hemorrhagic one (detection of changes in permittivity and conductivity). Both of these strokes need different type of treatment. In this paper a comparison study of three types of UWB antennas through numerical simulation is performed. All three antennas are working in the frequency bandwidth 1.5-3 GHz. Methods: Antenna is very important part of brain stroke detection systems. Currently, we are using simple UWB bowtie antennas of relatively low sensitivity to detection of hemorrhagic strokes. The main task was to choose the best antenna through the sensitivity of detection. We choose three different type of antennas 1) bowtie antenna, 2) double ridge horn antenna (adopted from [2]) and 3) microstrip antenna. For numerical simulation the numerical simulator SIM4LIFE 2.0 was used. Antennas were facing to the numerical homogenous model of human brain with dielectric parameters εr = 48.9 and σ = 1.31[S/m] (at 1 GHz). At the distance 40 mm from antenna the hemorrhage represented by blood of cylindrical shape of εr = 61.1 and σ = 1.54 [S/m] (at 1 GHz) was placed. The basic configuration can be seen in Fig. 1. We observed S11 parameter differences at certain frequencies between two cases 1) without hemorrhagic stroke and 2) with hemorrhagic one. Results: The simulations show that the best antenna for stroke detection is the microstrip antenna. The sensitivity was higher by 11% (24%) against horn antenna (bowtie antenna)

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

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

Article name in the collection

Progress in Electromagnetic Research Symposium (PIERS)

ISBN

978-1-5090-6093-1

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

4648-4648

Publisher name

The Electromagnetics Academy

Place of publication

Cambridge, MA

Event location

Shanghai

Event date

Aug 8, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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