Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

Karmokar, DK; Chen, SL; Qin, PY; Guo, YJ

Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

Karmokar, DK Chen, SL

Qin, PY

Guo, YJ

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Publication Type:: Conference Proceeding
Citation:: 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019, 2019
Issue Date:: 2019-03-01

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Field	Value	Language
dc.contributor.author	Karmokar, DK	en_US
dc.contributor.author	Chen, SL https://orcid.org/0000-0002-4275-0462	en_US
dc.contributor.author	Qin, PY https://orcid.org/0000-0001-8861-4143	en_US
dc.contributor.author	Guo, YJ https://orcid.org/0000-0001-6008-9682	en_US
dc.date.issued	2019-03-01	en_US
dc.identifier.citation	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019, 2019	en_US
dc.identifier.isbn	9789082598759	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137303
dc.description.abstract	© 2019 URSI. All rights reserved. Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP160102219
dc.relation.ispartof	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019	en_US
dc.relation.isbasedon	10.23919/URSIAP-RASC.2019.8738427	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2019 URSI. All rights reserved. Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.

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http://hdl.handle.net/10453/137303