Comparison of Bowtie Slot and Rectangular Waveguide-Based Antennas for Microwave Medical Imaging

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00331626" target="_blank" >RIV/68407700:21230/18:00331626 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21460/18:00331626

Výsledek na webu

<a href="http://dx.doi.org/10.1049/cp.2018.0836" target="_blank" >http://dx.doi.org/10.1049/cp.2018.0836</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/cp.2018.0836" target="_blank" >10.1049/cp.2018.0836</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of Bowtie Slot and Rectangular Waveguide-Based Antennas for Microwave Medical Imaging

Popis výsledku v původním jazyce

In this work, two radiating elements were selected as a suitable candidates for use in the new generation of microwave imaging system developed at ELEDIA@CTU in Prague. These elements are the antenna based on the rectangular waveguide section and the bowtie slot antenna. Both elements meet the criteria we have established based on experience with the previous system: dominant radiation in the imaged domain, radiation symmetry and no need for a balun. The work deals with the verification of the fulfillment of the desired antenna properties and the mutual comparison of the two antenna elements by means of numerical simulations. Although both antenna elements exhibit the desired properties, the bowtie slot antenna exhibits lower internal losses compared to the rectangular waveguide-based antenna. This increases the magnitude of the transmission coefficients in our microwave imaging system by about 13 dB to about -74 dB (for the most distant antennas of the system) for the bowtie slot antenna (in comparison to the rectangular waveguide-based antenna). In addition, it can be expected that for this antenna element it will be easier to guarantee the reproducebility of the production and thus reduce the differences of the individual antenna elements in the antenna array of the microwave imaging system.

Název v anglickém jazyce

Comparison of Bowtie Slot and Rectangular Waveguide-Based Antennas for Microwave Medical Imaging

Popis výsledku anglicky

In this work, two radiating elements were selected as a suitable candidates for use in the new generation of microwave imaging system developed at ELEDIA@CTU in Prague. These elements are the antenna based on the rectangular waveguide section and the bowtie slot antenna. Both elements meet the criteria we have established based on experience with the previous system: dominant radiation in the imaged domain, radiation symmetry and no need for a balun. The work deals with the verification of the fulfillment of the desired antenna properties and the mutual comparison of the two antenna elements by means of numerical simulations. Although both antenna elements exhibit the desired properties, the bowtie slot antenna exhibits lower internal losses compared to the rectangular waveguide-based antenna. This increases the magnitude of the transmission coefficients in our microwave imaging system by about 13 dB to about -74 dB (for the most distant antennas of the system) for the bowtie slot antenna (in comparison to the rectangular waveguide-based antenna). In addition, it can be expected that for this antenna element it will be easier to guarantee the reproducebility of the production and thus reduce the differences of the individual antenna elements in the antenna array of the microwave imaging system.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20601 - Medical 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

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

2018 12th European Conference on Antennas and Propagation

ISBN

978-1-78561-815-4

ISSN

0537-9989

e-ISSN

—

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

The European Association on Antennas and Propagation

Místo vydání

Bruxelles

Místo konání akce

London

Datum konání akce

9. 4. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—