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Institute of Electrical and Electronics Engineers, IEEE Transactions on Antennas and Propagation, 12(64), p. 5459-5465, 2016

DOI: 10.1109/tap.2016.2606556

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A Simple Miniature Ultra-Wide Band Magnetic Field Probe Design for Magnetic Near-Field Measurements

Published in 2016 by Zhaowen Yan ORCID, Jianwei Wang, Wei Zhang, Yansheng Wang, Jun Fan ORCID
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

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 magnetic-field probe is built on a four-layer printed circuit board (PCB) using high-performance and low-loss Rogers material (εr =3.48 and tan δ =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 |S21| rather smooth in the operation band. Experimental results show that the working frequency band is up to 9 kHz ~ 20 GHz.