Millimeter-wave antennas for 5G handsets and base stations

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorAla-Laurinaho, Juha, Dr., Aalto University, Finland
dc.contributor.authorMontoya Moreno, Resti
dc.contributor.departmentElektroniikan ja nanotekniikan laitosfi
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.schoolSchool of Electrical Engineeringen
dc.contributor.supervisorViikari, Ville, Assoc. Prof., Aalto University, Department of Electronics and Nanoengineering, Finland
dc.date.accessioned2020-09-25T09:00:06Z
dc.date.available2020-09-25T09:00:06Z
dc.date.defence2020-10-09
dc.date.issued2020
dc.description9.10.2020 9:00 – 12:00 via Zoom https://aalto.zoom.us/j/66371586377
dc.description.abstractThe massive increase in the number of connected devices is making it necessary to use higher frequencies and wider bandwidths. The use of frequencies in the 20-300 GHz will enable achieving higher capacities and data rates. In order to compensate for the higher free-space path loss and increased atmospheric absorption directive antenna elements have to be used and, thus, beam-steering and beam-forming capabilities are needed. In this thesis, mm-wave antennas in the 24-35 GHz range are developed. The designs include both mobile phone and base station antennas since both of them will have to evolve to meet the demands of 5G networks. The first part of this thesis focuses on finding mm-wave antenna solutions for 5G mobile handsets. The mobile phone antennas radiate towards the end-fire direction with respect to the mobile phone. The designs present dual-polarized operation and wide-angle beam-steering for increased reliability. Moreover, the mm-wave antennas are designed so that they do not heavily degrade the performance of the already present sub-6 GHz antennas. The proposed solutions include 3 and 4-element arrays which are either integrated in the metal frame of the mobile phone, or radiate through a small window in it. The second part of this thesis introduces 5G base station antennas and their challenges. The base station antennas presented are scalable in the number of antenna elements in order to adapt to different use cases. Moreover, and as a huge amount of base stations are going to be required with the development of 5G, the antennas are energy efficient and relatively cheap to manufacture. They present beam-steering or beam-switching capabilities in order to keep track of the mobile users, as well as high directivity. The designs presented include an efficient 16-element horn antenna phased-array, and a wide-angle dual-polarized beam-switching lens antenna.en
dc.format.extent82 + app. 72
dc.format.mimetypeapplication/pdfen
dc.identifier.isbn978-952-64-0045-7 (electronic)
dc.identifier.isbn978-952-64-0044-0 (printed)
dc.identifier.issn1799-4942 (electronic)
dc.identifier.issn1799-4934 (printed)
dc.identifier.issn1799-4934 (ISSN-L)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/46634
dc.identifier.urnURN:ISBN:978-952-64-0045-7
dc.language.isoenen
dc.opnHong, Wonbin, Assoc. Prof., Pohang University, Republic of Korea
dc.publisherAalto Universityen
dc.publisherAalto-yliopistofi
dc.relation.haspart[Publication 1]: Resti Montoya Moreno, Juha Ala-Laurinaho, and Ville Viikari. Rod waveguides as future 5G antennas for mobile devices. Proceedings of the 48th European Microwave Conference, Madrid, Spain, pp. 1081–1084, Sep. 2018. Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-201902251843. DOI: 10.23919/EuMC.2018.8541770
dc.relation.haspart[Publication 2]: Resti Montoya Moreno, Juha Ala-Laurinaho, Alexander Khripkov, Janne Ilvonen, and Ville Viikari. Dual-polarized mm-wave end-fire antenna for mobile devices. Submitted to IEEE Transactions on Antennas and Propagation, 11 pages, Nov. 2019. DOI: 10.1109/TAP.2020.2989556
dc.relation.haspart[Publication 3]: Resti Montoya Moreno, Juha Ala-Laurinaho, and Ville Viikari. Dual- polarized mm-wave antenna solution for mobile phone. Proceedings of the 14th European Conference on Antennas and Propagation (EuCAP 2020), Copenhagen, Denmark, 5 pages, Mar. 2020. Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-202008214804. DOI: 10.23919/EuCAP48036.2020.9135691
dc.relation.haspart[Publication 4]: Resti Montoya Moreno, Joni Kurvinen, Juha Ala-Laurinaho, Alexan- der Khripkov, Janne Ilvonen, Jari van Wonterghem, and Ville Viikari. Dual-polarized mm-wave end-fire chain-slot antenna for mobile devices. Submitted to IEEE Transactions on Antennas and Propagation, 10 pages, Dec. 2019. DOI: 10.1109/TAP.2020.3001434
dc.relation.haspart[Publication 5]: Joni Kurvinen, Resti Montoya Moreno, Anu Lehtovuori, Juha Ala- Laurinaho, Alexander Khripkov, Janne Ilvonen, Jari van Wonterghem, and Ville Viikari. Capacitively-loaded feed line to improve mm-wave and sub-6 GHz antenna co-existence. Submitted to IEEE Transactions onAntennas and Propagation, 8 pages, Dec. 2019. Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-202008124714. DOI: 10.1109/ACCESS.2020.3012773
dc.relation.haspart[Publication 6]: Mikko Leino, Resti Montoya Moreno, Juha Ala-Laurinaho, Risto Valkonen, and Ville Viikari. Waveguide-based phased array with integrated element-specific electronics for 28 GHz. IEEE Access, vol. 7, pp. 90045– 90054, Jun. 2019. Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-201908154657. DOI: 10.1109/ACCESS.2019.2925458
dc.relation.haspart[Publication 7]: Resti Montoya Moreno, Juha Ala-Laurinaho, and Ville Viikari. Plastic- filled dual-polarized lens antenna for beam-switching in the Ka-band. IEEE Antennas and Wireless Propagation Letters, vol. 18, pp. 2458–2462, Sept. 2019. DOI: 10.1109/LAWP.2019.2939901
dc.relation.ispartofseriesAalto University publication series DOCTORAL DISSERTATIONSen
dc.relation.ispartofseries141/2020
dc.revZhang, Shuai, Assoc. Prof., Aalborg University, Denmark
dc.revBerg, Markus, Adj. Prof., University of Oulu, Finland
dc.subject.keywordantennaen
dc.subject.keywordbase-station antennasen
dc.subject.keywordmetal frameen
dc.subject.keywordmillimeter-wave antennasen
dc.subject.keywordmobile phone antennasen
dc.subject.otherElectrical engineeringen
dc.titleMillimeter-wave antennas for 5G handsets and base stationsen
dc.typeG5 Artikkeliväitöskirjafi
dc.type.dcmitypetexten
dc.type.ontasotDoctoral dissertation (article-based)en
dc.type.ontasotVäitöskirja (artikkeli)fi
local.aalto.acrisexportstatuschecked 2020-11-17_1902
local.aalto.archiveyes
local.aalto.formfolder2020_09_24_klo_14_04
local.aalto.infraAalto Electronics-ICT
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