A single layered high-gain digital metasurface reflectarray antenna for millimeter wave applications

被引：0
作者：
Bashir, Gazali [1 ]
Singh, Amit K. [2 ]
Dubey, Ankit [1 ]
机构：
[1] Indian Inst Technol Jammu, Jammu, Jammu And Kashm, India
[2] Indian Inst Technol Patna, Patna, Bihar, India
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2024年 / 66卷 / 01期
关键词：
antipodal vivaldi antenna; digital metasurface; high gain; millimeter wave; reflectarray antenna; LINEAR-POLARIZATION; DESIGN;
D O I：
10.1002/mop.33898
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 high-gain digital metasurface reflectarray antenna for 5G FR-2 band is presented in this letter. The digital metasurface reflector is composed of single-layered phase quantized meta-bit unit cell elements. The metabit consists of a split square integrated with a circular ring. Two discretized phase states are obtained by varying the dimensions of the split square and the circular ring, which mimic the metabit-0 and metabit-1, respectively. A digital metasurface reflectarray having dimensions of 5.3 & lambda;o ${{\boldsymbol{\lambda }}}_{{\boldsymbol{o}}}$ x ${\boldsymbol{\times }}$ 5.3 & lambda;o ${{\boldsymbol{\lambda }}}_{{\boldsymbol{o}}}$ operating in the frequency range of 37-39 GHz is designed, fabricated, and characterized. A linearly polarized antipodal vivaldi antenna spatially feeds the digital metasurface reflectarray. A maximum measured gain of 19.1 dBi is obtained at 38 GHz, with an aperture efficiency of 23%.
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页数：8
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