Design of Miniature Ultrawideband Active Magnetic Field Probe Using Integrated Design Idea

被引:0
|
作者
Zhou, Yang [1 ]
Yan, Zhaowen [1 ]
Ma, Zhangqiang [1 ]
Zhao, Yang [2 ]
Gao, Jie [2 ]
Cheng, Ruiqi [2 ]
Huang, Baocheng [2 ]
机构
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Beijing Smart Chip Microelect Technol Co Ltd, Beijing Engn Res Ctr High Reliabil IC Power Ind Gr, Beijing 102299, Peoples R China
关键词
miniaturized; ultrawideband; magnetic; active probe; high sensitivity; near-field measurement; HIGH-SENSITIVITY;
D O I
10.3390/s23136170
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This article presents a miniature ultrawideband active magnetic probe which is composed of a passive structure and an active amplification circuit structure. The active circuit mainly contains two chips, specifically an amplification chip (HMC797APM5E) and a power management chip (HMC980LP4E). The maximum size of the probe is no more than 64 x 41.5 mm(2). Compared with the passive probe with the same-sized loop, the sensitivity of the proposed probe is enhanced by 25 dB through the active circuit design. The working frequency bandwidth of the proposed probe can cover 9 kHz to 18 GHz. Additionally, the flatness is about & PLUSMN;4 dB in terms of |S-21| in the stable working bandwidth. It is efficient for high-frequency near-field scanning.
引用
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页数:16
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