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
收藏
页码：5459 / 5465
页数：8
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