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Compact Half-Luneburg Lens Antenna Based on a Glide-Symmetric Dielectric Structure
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-5338-1789
European Space Agcy, Antenna & Sub Millimetre Waves Sect, NL-2200 AG Noordwijk, Netherlands..
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-4900-4788
2022 (English)In: IEEE Antennas and Wireless Propagation Letters, ISSN 1536-1225, E-ISSN 1548-5757, Vol. 21, no 11, p. 2283-2287Article in journal (Refereed) Published
Abstract [en]

In this letter, we present a planar half-Luneburg lens antenna based on a glide-symmetric dielectric structure. The proposed half-Luneburg lens antenna provides a compact alternative to planar beamformers such as conventional Luneburg and Rotman lenses, as well as pillbox antennas. Importantly, we demonstrate that the peak gain of the half-Luneburg lens antenna is less than 1 dB lower than the peak gain of a conventional Luneburg lens antenna, despite being almost half the size. The proposed antenna can steer its beam in a 50 degrees range with scan losses lower than 2 dB and side lobe levels below -10 dB. The proposed design is validated experimentally with a robust and cost-effective implementation using additive manufacturing.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2022. Vol. 21, no 11, p. 2283-2287
Keywords [en]
Additive manufacturing, dielectric lens antennas, glide symmetry, half-Luneburg lens
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-321973DOI: 10.1109/LAWP.2022.3179639ISI: 000875901300032Scopus ID: 2-s2.0-85131723926OAI: oai:DiVA.org:kth-321973DiVA, id: diva2:1713871
Note

QC 20221128

Available from: 2022-11-28 Created: 2022-11-28 Last updated: 2023-03-07Bibliographically approved

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Zetterström, OskarQuevedo-Teruel, Oscar

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