{"title":"A new differential magnetic-field probe with high detection sensitivity for near-field scanning","authors":"Duan Nie, Ruiqi Wang, Lei Wang","doi":"10.1049/smt2.12173","DOIUrl":null,"url":null,"abstract":"<p>In this article, a new differential magnetic-field probe with high detection sensitivity for near-field scanning is proposed. The proposed probe consists of a U-shaped differential loop as a driven element, a pair of asymmetric inverted U-shaped differential loops as a parasitic element, two transmission line, two connected vias, two shorted vias, and two output ports. Connected and shorted vias are used to form the sensing structure with high sensitivity. Some shield vias are used to reject the unwanted electric–field coupling. The proposed probe is simulated, fabricated, and measured to demonstrate the design rationality. The measured results reveal that the presented probe has a higher detection sensitivity and a high electric-field suppression ratio greater than −35 dB in the range of 0.01 to 20 GHz.</p>","PeriodicalId":54999,"journal":{"name":"Iet Science Measurement & Technology","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/smt2.12173","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Science Measurement & Technology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/smt2.12173","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this article, a new differential magnetic-field probe with high detection sensitivity for near-field scanning is proposed. The proposed probe consists of a U-shaped differential loop as a driven element, a pair of asymmetric inverted U-shaped differential loops as a parasitic element, two transmission line, two connected vias, two shorted vias, and two output ports. Connected and shorted vias are used to form the sensing structure with high sensitivity. Some shield vias are used to reject the unwanted electric–field coupling. The proposed probe is simulated, fabricated, and measured to demonstrate the design rationality. The measured results reveal that the presented probe has a higher detection sensitivity and a high electric-field suppression ratio greater than −35 dB in the range of 0.01 to 20 GHz.
本文提出了一种用于近场扫描的新型高探测灵敏度差分磁场探头。该探头由一个作为驱动元件的 U 型差分环、一对作为寄生元件的不对称倒 U 型差分环、两条传输线、两个连接通孔、两个短路通孔和两个输出端口组成。连接通孔和短路通孔用于形成具有高灵敏度的传感结构。一些屏蔽通孔用于抑制不必要的电场耦合。为了证明设计的合理性，我们对所提出的探头进行了模拟、制造和测量。测量结果表明，所提出的探头具有更高的探测灵敏度，在 0.01 至 20 GHz 范围内具有大于 -35 dB 的高电场抑制比。
期刊介绍：
IET Science, Measurement & Technology publishes papers in science, engineering and technology underpinning electronic and electrical engineering, nanotechnology and medical instrumentation.The emphasis of the journal is on theory, simulation methodologies and measurement techniques.
The major themes of the journal are:
- electromagnetism including electromagnetic theory, computational electromagnetics and EMC
- properties and applications of dielectric, magnetic, magneto-optic, piezoelectric materials down to the nanometre scale
- measurement and instrumentation including sensors, actuators, medical instrumentation, fundamentals of measurement including measurement standards, uncertainty, dissemination and calibration
Applications are welcome for illustrative purposes but the novelty and originality should focus on the proposed new methods.
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