A Simple Miniature Ultrawideband Magnetic Field Probe Design for Magnetic Near-Field Measurements

被引：91

作者：

Yan, Zhaowen ^{[1
]}

Wang, Jianwei ^{[1
]}

Zhang, Wei ^{[1
]}

Wang, Yansheng ^{[2
]}

Fan, Jun ^{[2
]}

机构：

[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

[2] Missouri Univ Sci & Technol, EMC Lab, Rolla, MO 65409 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Coax-thru-hole via array; near-field measurements; ultrawideband magnetic-field probe; via fence; COAX; VIAS;

D O I：

10.1109/TAP.2016.2606556

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 simple miniature magnetic-field probe for near-field measurements in 9-kHz-20-GHz bandwidth, which is applied to high-speed circuits, has been proposed and manufactured. The magneticfield probe is built on a four-layer printed circuit board (PCB) using high-performance and low-loss Rogers material (epsilon(r) = 3.48 and tan delta = 0.0037). Electric field coupling can be suppressed by PCB shielding structure of the magnetic-field probe. Coax-thru-hole via array technique is used to achieve impedance match. The resonance in working frequency band is suppressed through via fence, making vertical bar S-21 vertical bar rather smooth in the operation band. Experimental results show that the working frequency band is up to 9 kHz-20 GHz.

引用

页码：5459 / 5465

页数：8

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