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Design of ultra-wideband antenna with high-selectivity band notches using fragment-type etch pattern
Univ Sci & Technol China, Hefei, Anhui, Peoples R China.
Univ Sci & Technol China, Hefei, Anhui, Peoples R China.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
Univ Sci & Technol China, Hefei, Anhui, Peoples R China; Chinese Acad Sci, Beijing, Peoples R China.
2019 (English)In: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760Article in journal (Refereed) Epub ahead of print
Abstract [en]

By specifying objective functions defining the two bands to be notched with high roll-off criteria (ROCs), optimization searching for the best fragment-type etch pattern on ultra-wideband (UWB) antenna is implemented by using multi-objective optimization. The optimization with too many objective functions requires special treatment to improve the searching efficiency. In this design, two slits are preset on appropriate positions on different sides of the UWB radiator to constrain the decision space for etch pattern searching and yield two initial notched bands to speed up the optimization. For demonstration, a UWB patch antenna is designed with dual-band notches of ROC = 0.63 at WiMAX band and ROC = 0.65 at WLAN band. Both the simulation and measurement results indicate that there is significant improvement of the selectivity of the dual-band notches.

Place, publisher, year, edition, pages
2019.
Keywords [en]
band notch, fragment-type structure, multi-objective optimization, ultra-wideband antenna
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-37672DOI: 10.1002/mop.32103ISI: 000490935700001OAI: oai:DiVA.org:miun-37672DiVA, id: diva2:1369976
Available from: 2019-11-13 Created: 2019-11-13 Last updated: 2019-11-13Bibliographically approved

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Sidén, Johan

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  • nn-NO
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Output format
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  • asciidoc
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