Abstract | ||
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In this paper, we propose a strategy to achieve a single-feed multi-beam metasurface antenna by combining phase gradient and coding sequence. Theoretically, the multi-beam antennas with various far-field patterns can be realized via superimposing different kinds of phase coding sequences. As three proof-of-concepts, the 0101... /0101... coding sequence, chessboard coding sequence, and 1-bit sector coding sequence are selected to design double-beam, four-beam, and eight-beam circular-polarized reflector antennas, respectively. Furthermore, the four-beam reflector antenna is fabricated and measured to demonstrate the feasibility of our strategy. The fabricated antenna can produce four perfect pencil-shaped beams in a wide frequency range from 11 to 13 GHz. At central frequency, the realized gain is about 19.9 dB and the axial ratio is lower than 3 dB. Moreover, the circular polarization state of the reflective beams is consistent with the polarization state of spot source, which differs from the reflector antennas based on the polarization-insensitive unit cells. This paper connects the multi-beam patterns with binary digits, which provide the potential for reconfiguring the multi-beam patterns by computer programs. |
Year | DOI | Venue |
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2019 | 10.1109/ACCESS.2019.2915960 | IEEE ACCESS |
Keywords | Field | DocType |
Metasurfaces,phase gradient,coding sequence,reflector antennas,Pancharatnam-Berry phase | Computer science,Electronic engineering,Coding (social sciences),Beam (structure),Distributed computing | Journal |
Volume | ISSN | Citations |
7 | 2169-3536 | 0 |
PageRank | References | Authors |
0.34 | 0 | 11 |
Name | Order | Citations | PageRank |
---|---|---|---|
he wang | 1 | 15 | 11.58 |
Yongfeng Li | 2 | 0 | 0.68 |
Hongya Chen | 3 | 0 | 1.01 |
Yajuan Han | 4 | 0 | 0.34 |
Sai Sui | 5 | 0 | 0.34 |
Ya Fan | 6 | 0 | 0.34 |
Zetian Yang | 7 | 0 | 0.34 |
Jiafu Wang | 8 | 50 | 6.96 |
Jieqiu Zhang | 9 | 0 | 1.01 |
Shaobo Qu | 10 | 1 | 4.01 |
Qiang Cheng | 11 | 10 | 4.02 |