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The Water Drop Lens: a Low-Profile Geodesic Parallel Plate Waveguide Lens Antenna for Space Applications
European Space Agcy, Antenna & Submillimetre Wave Sect, Noordwijk, Netherlands..
KTH, School of Electrical Engineering and Computer Science (EECS), Electromagnetic Engineering.ORCID iD: 0000-0002-4900-4788
2019 (English)In: 13th European Conference on Antennas and Propagation, EuCAP 2019, Institute of Electrical and Electronics Engineers (IEEE), 2019, article id 8739805Conference paper, Published paper (Refereed)
Abstract [en]

This paper introduces the design of a parallel plate waveguide geodesic lens modulated with spline functions. This geodesic lens design is rotational-symmetric, which naturally provides a high pattern stability over a wide angular range. The proposed design is thoroughly compared to the reference Rinehart-Luneburg lens and numerical results indicate similar electromagnetic performance, including scattering parameters and radiation, while enabling a height reduction by a factor of 2.6. This beamformer provides very wide angular scanning up to +/- 70 degrees with scan losses below 3 dB. The lens can be designed to provide very high aperture efficiency (between 80 and 90%) over a wide frequency operating range. Analyses were performed over the frequency range 26-32 GHz, demonstrating very stable performance. The very smooth shape of the lens is particularly attractive for applications at millimeter and sub-millimeter wavelengths.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2019. article id 8739805
Series
Proceedings of the European Conference on Antennas and Propagation, ISSN 2164-3342
Keywords [en]
Rinehart-Luneburg lens, geodesic lens, parallel plate waveguide, beamformer, multiple beam antenna
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-257474ISI: 000480384701132Scopus ID: 2-s2.0-85068472945ISBN: 978-8-8907-0188-7 (print)OAI: oai:DiVA.org:kth-257474DiVA, id: diva2:1348745
Conference
13th European Conference on Antennas and Propagation (EuCAP), MAR 31-APR 05, 2019, Krakow, POLAND
Note

QC 20190905

Available from: 2019-09-05 Created: 2019-09-05 Last updated: 2019-09-05Bibliographically approved

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Quevedo-Teruel, Oscar

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CiteExportLink to record
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  • apa
  • harvard1
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