W-Band Imaging Sensor Using a Rectangular Waveguide Structure With Choke

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00354303" target="_blank" >RIV/68407700:21230/22:00354303 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/LMWC.2021.3134472" target="_blank" >https://doi.org/10.1109/LMWC.2021.3134472</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LMWC.2021.3134472" target="_blank" >10.1109/LMWC.2021.3134472</a>

Jazyk výsledku

angličtina

Název v původním jazyce

W-Band Imaging Sensor Using a Rectangular Waveguide Structure With Choke

Popis výsledku v původním jazyce

A new application of a rectangular waveguide structure with a choke from Baskakova and Hoffmann (2021) is proposed for high-contrast imaging in the W-band. As with homogeneous lossy waveguides, the field distribution in front of the open-ended sensor is observed and a calibration/correction method is applied. The sensor is evaluated using planar metal- dielectric samples under test (SUT), thus enabling the detection of different materials with a standoff distance ranging from 0.08 to 1.07 λ₀. The sensor can determine both amplitudes and the contrast of the reflection coefficients correctly at the reference plane of the SUT, which is not possible for state-of-the-art sensors. The maximum contrast of the imaging is greater than 26 dB. A spatial resolution and minimum resolution for the tracking of SUT local properties of 1.9 mm are achieved at standoff distances of 2 and 1 mm, respectively.

Název v anglickém jazyce

W-Band Imaging Sensor Using a Rectangular Waveguide Structure With Choke

Popis výsledku anglicky

A new application of a rectangular waveguide structure with a choke from Baskakova and Hoffmann (2021) is proposed for high-contrast imaging in the W-band. As with homogeneous lossy waveguides, the field distribution in front of the open-ended sensor is observed and a calibration/correction method is applied. The sensor is evaluated using planar metal- dielectric samples under test (SUT), thus enabling the detection of different materials with a standoff distance ranging from 0.08 to 1.07 λ₀. The sensor can determine both amplitudes and the contrast of the reflection coefficients correctly at the reference plane of the SUT, which is not possible for state-of-the-art sensors. The maximum contrast of the imaging is greater than 26 dB. A spatial resolution and minimum resolution for the tracking of SUT local properties of 1.9 mm are achieved at standoff distances of 2 and 1 mm, respectively.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

IEEE Microwave and Wireless Components Letters

ISSN

1531-1309

e-ISSN

1558-1764

Svazek periodika

32

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

230-233

Kód UT WoS článku

000767843300014

EID výsledku v databázi Scopus

2-s2.0-85122091078