A Two-Port Measurement with Mechanically Robust Handhold Probes for Ultra Low PDN Impedance
Measuring the input impedance of a power distribution network of a high-speed printed circuit board is challenging because the port is defined on multiple vias, and the impedance can be below a milliohm. A mechanically robust probe, and a specially designed, low-inductance probe landing pad are designed to measure the power distrubtion network impedance. The measurement is based on a two-port measurement method, and the mutual inductance of the port, which is the main source of error of the method, is characterized. Comparison between measurement and full-wave simulation shows that the presented probes and fixtures are suitable for measuring impedance in the sub-milliohm range.
X. Fang and S. Bai and S. Liang and Y. Ding and Y. Fan and B. Zhao and H. Deng and P. K. Vuppunutala and X. Zhu and R. Zai and X. Wei and J. L. Drewniak, "A Two-Port Measurement with Mechanically Robust Handhold Probes for Ultra Low PDN Impedance," Proceedings of the 2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity (2019, New Orleans, LA), pp. 378-382, Institute of Electrical and Electronics Engineers (IEEE), Jul 2019.
The definitive version is available at https://doi.org/10.1109/ISEMC.2019.8825224
2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity, EMC+SIPI 2019 (2019: Jul. 22-26, New Orleans, LA)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Power Distribution Network (PDN); Two-Port Measurement; Ultra-Low Impedance
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2019 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
01 Jul 2019