High-Q Hg-anapole resonator with microstrip line coupling for high-precision temperature sensing applications

Results in Physics

Wenjiao Wang¹  Jian Li²  Dexu Chen³  Yongjun Yang³  Yifeng Liu³  Yongjun Huang³  Yuedan Zhou³  Liang Ma³  Guangjun Wen³  Wenxian Zheng⁴ 

[1] Corresponding authors.;Shenzhen Intellifusion Technologies Co., Ltd. Shenzhen 518000, China;School of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, China;Shenzhen Graduate School of Tsinghua University, Shenzhen 518055, China;

关键词: Metamaterial;    Liquid metamaterial;    High Q-factor resonator;    Anapole resonance;    Temperature sensing;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this paper, to achieve a high-precision temperature sensing, a modified anapole resonator based on the liquid–metal (Hg) with high Q-factor and large thermal-sensitivity properties is proposed. The high-Q resonance of the designed Hg-anapole resonator is excited by a simple microstrip coupling line with large electromagnetic energy coupling rate. The detailed numerical optimization and experimental demonstration are discussed, and the measured temperature sensitivity of 17.14 MHz/°C and figure-of-merit (FOM) of 0.3/°C are achieved based on the proposed Hg-anapole resonator. This kind of liquid high-Q metamaterial unit can be widely used to realize the high-precision sensing.

【 授权许可】

Unknown