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Fully Metallic Glide-Symmetric Leaky-Wave Antenna at K-a-Band With Lens-Augmented Scanning
Sci & Technol Electromagnet Compatibil Lab, Wuhan 430000, Peoples R China.;China Ship Dev & Design Ctr, Wuhan 430000, Peoples R China..
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0001-9895-8935
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-5338-1789
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-4900-4788
2022 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 1558-2221, Vol. 70, no 8, p. 7158-7163Article in journal (Refereed) Published
Abstract [en]

A fully metallic leaky-wave antenna (LWA) with enhanced scanning rate is presented. The leaky waveguide is implemented in groove gap waveguide technology and is periodically loaded to produce backward radiation. Furthermore, glide-symmetric pins are placed inside the leaky waveguide to increase the dispersion. A parallel-plate waveguide metasurface prism lens is used to disperse the backward radiation and increase the scanning rate of the LWA. The designed antenna can steer the radiation from -26 degrees to 26 degrees from 27 to 35 GHz, and an average total efficiency of 74% is achieved. A prototype of the designed antenna is manufactured, and measurements corroborate the simulated results. The proposed concept is applicable to other frequency-scanning antennas and can be used to increase the scanning rate in radar and imaging systems.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2022. Vol. 70, no 8, p. 7158-7163
Keywords [en]
Pins, Dispersion, Periodic structures, Metamaterials, Antennas, Metasurfaces, Harmonic analysis, Backward radiation, dispersive prism, frequency scanning, glide symmetry, leaky-wave antenna (LWA), metasurface
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-319453DOI: 10.1109/TAP.2022.3146855ISI: 000852293800093Scopus ID: 2-s2.0-85124194471OAI: oai:DiVA.org:kth-319453DiVA, id: diva2:1700278
Note

QC 20220930

Available from: 2022-09-30 Created: 2022-09-30 Last updated: 2022-10-24Bibliographically approved

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Chen, QiaoZetterström, OskarQuevedo-Teruel, Oscar

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