Programmable Metamaterial for In-Plane Electromagnetic Wave Control in the Microwave Range

被引:0
|
作者
Hu, Xiaojun [1 ]
Peng, Liang [2 ]
Zhuo, Ruofan [1 ]
Zhang, Shuang [3 ,4 ]
Ye, Dexin [1 ]
机构
[1] Zhejiang Univ, Lab Appl Res Electromagnet, Hangzhou 310027, Peoples R China
[2] Hangzhou City Univ, Sch Informat & Elect Engn, Hangzhou 310015, Peoples R China
[3] Univ Hong Kong, Dept Phys, Dept Elect & Elect Engn, New Cornerstone Sci Lab, Hong Kong 999077, Peoples R China
[4] Quantum Sci Ctr, Guangdong Hong Kong Macao Great Bay Area, Shenzhen 518000, Peoples R China
关键词
in-plane control; metamaterial; programmable; reconfigurable; wave manipulation; NEGATIVE REFRACTION;
D O I
10.1002/lpor.202401472
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Tunable and programable devices hold a significant interest in electromagnetic (EM) engineering. A notable example is the programmable metasurfaces, which are quite powerful in controlling the phase front and steering beam of free-space waves. Similarly, managing in-plane EM waves on board is crucial for various applications. However, a programmable metamaterial (PMM) suitable for in-plane EM wave control is yet to be developed. Here, a PMM is presented that dynamically controls in-plane waves and is integrated on-boardly. The PMM is designed by incorporating metallic structures and tunable varactors. By biasing the varactors, a bulk module composed of an array of metamaterial unit cells can exhibit varied responses to incoming waves. As proof of concept, a PMM module for microwave control is fabricated and measured. In experiments, the PMM is successfully programmed to perform three distinct functions: wave splitting, Luneburg focusing, and wave differentiation, around the destination frequency (4.5 GHz). Although the PMM is dispersive and its bandwidth is somehow limited, its central frequency can be shifted in a dynamic range from 4 to 5 GHz. The proposed PMM resembles a miniaturized platform for reprogrammable in-plane wave control and manipulation, showing promise for realizing full wave operators, integrable computing, and deep learning devices.
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页数:7
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