Integrated epsilon-near-zero antenna for omnidirectional radiation

被引：7
|
作者：
Liu, Zhenyu [1 ]
Zhou, Ziheng [1 ]
Li, Yang [2 ]
Li, Yue [1 ,3 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Precis Instrument, Beijing 100084, Peoples R China
[3] Beijing Natl Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 15期
基金：
中国国家自然科学基金;
关键词：
POLARIZED ANTENNA; WAVE-GUIDE; ENZ; ARRAY;
D O I：
10.1063/5.0068151
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Antennas with omnidirectional radiation of electromagnetic wave have wide applications in sensing, positioning, and wireless communications. Here, we investigate the potentials of using epsilon-near-zero (ENZ) metamaterial to realize omnidirectional radiation with high degrees of freedom. We propose an omnidirectional antenna based on an ENZ cavity integrated in printed circuits board (PCB). By taking advantage of ENZ behavior, the ENZ antenna can decouple the radiation patterns and the operating frequency while maintaining the omnidirectional radiation characteristic. Based on the omnidirectional ENZ antenna element, a parallel-fed array is realized based on the low-cost PCB process. The integrated ENZ antenna array exhibits the capability of engineering the omnidirectional radiation flexibly, such as beam scanning and beam intensity control for practical applications.
引用
收藏
页数：6
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