A Cylindrical, Metasurface-Based, Azimuthally-Symmetric Beam-Shaping Shell

被引：0
|
作者：
Lin, Chun-Wen [1 ]
Ziolkowski, Richard W. [2 ]
Grbic, Anthony [1 ]
机构：
[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA
[2] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ USA
来源：
2023 17TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP | 2023年
关键词：
Antenna radiation pattern synthesis; beam shaping; curved metasurfaces; cylindrical scatterers; metasurfaces;
D O I：
10.23919/EuCAP57121.2023.10133238
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A cylindrical beam-shaping shell that transforms the field of a displaced (off-center) coaxial feed to a narrow radiated beam is presented. The displaced coaxial feed is characterized using the mathematical properties of Hankel functions, whereas the concentrically-cascaded, cylindrical metasurfaces comprising the shell are modeled using the multimodal wave matrix theory. The scattering properties of the feed and metasurfaces are combined to synthesize the beam-shaping shell. The symmetry of the device allows control over the beam direction via azimuthally displaced feeds.
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