Prephase Method for 1-bit Phase Compensation Single-beam Scanning Reflective Metasurface Design

被引：0
|
作者：
Yin, Jiexi [1 ]
Chen, Zhi Ning [2 ]
Wang, Haiming [3 ]
Wu, Qi [3 ]
Thomas, Zwick [1 ]
机构：
[1] Karlsruhe Inst Technol, Inst Radio Frequency Engn & Elect, Karlsruhe, Germany
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore, Singapore
[3] Southeast Univ, SKL Millimeter Waves, Nanjing, Peoples R China
来源：
2023 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY, IWAT | 2023年
基金：
中国国家自然科学基金;
关键词：
1; bit; phase control; plane waves; prephase; sidelobe level (SLL); reflective metasurface; unit cell;
D O I：
10.1109/IWAT57058.2023.10171683
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：
In this paper, the prephase method and the prephased unit cell designs for 1-bit reflective metasurfaces are discussed. Focusing on the symmetrical beam in 1-bit reflective metasurfaces under incident plane waves, the prephase method can break the even symmetrical array factor. With random prephase distributions, the symmetrical beam is effectively suppressed, and a single beam is formed. Moreover, the customized prephase distribution with equivalent amplitude tailoring further suppresses the sidelobe levels as beam scanning. For the realization of prephase, two kinds of methods are presented for the prephased unit cell designs. The proposed prephase method and prephased unit cells provide the foundation for 1-bit reconfigurable intelligence surface designs.
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页数：3
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