1. Metasurface‐enabled isolation between antenna arrays.
- Author
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Zhang, Hong, Wang, Jiafu, Han, Yajuan, Liu, Chao, Zhu, Ruichao, Liu, Tonghao, Fu, Xinmin, Chu, Zuntian, Li, Yongfeng, and Qu, Shaobo
- Subjects
ELECTROMAGNETIC wave propagation ,BROADBAND antennas ,ANTENNAS (Electronics) ,ELECTROMAGNETIC compatibility ,ANTENNA arrays ,RESONATORS - Abstract
In this article, we propose a method of achieving broadband decoupling between large antenna arrays using magnetic metasurface (MM). To realize broadband isolation performance, the MM consists of four sub‐regions composed periodic arrays of split‐ring resonators (SRRs). The four sub‐regions can achieve negative permeability in sequential frequency ranges, which can together cover the whole X‐band by proper combinations. When the MM is placed between the antenna arrays, the propagation of the coupled electromagnetic waves will be suppressed due to the negative permeability, so the isolation between the antenna arrays will be enhanced. For simplicity, the broadband decoupling performance of MM is verified by using patch antenna elements. Prototypes were fabricated and measured. Both simulated and measured results show that when the distance between the two antenna elements is about half a meter, the isolation can be enhanced by at least 25.0 dB in the whole X‐band, which convincingly verifies our method. This work provides an alternative to enhancing isolation between broadband antenna arrays and may find applications in electromagnetic compatibility of integrated masts, base stations, and so on. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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