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A low cost EMC pre-compliance board for electronic devices and smart grids networks

Araujo H. X., Melo M. D. B., Casella I. R. S., Capovilla C. E.

Przegląd Elektrotechniczny

2017

R. 93, nr 3

284--286

In this work, a low cost EMC – Electromagnetic Compatibility pre-compliance board, based on the conducted emission technique, is proposed as an option to analyze electronic devices used in telecommunications and smart grid network enviroments. In general, as the IC is the major responsible of unintentional emissions and coupling, some specific pre-compliance setup tests are employed to analyze these detrimental effects to the system as a whole. Therefore, an EMC Pre-Compliance Board was designed and built to operate from 150 KHz to 30 MHz. Simulated and experimental results are compared to validate the test setup.

W pracy przedstawiono prosty układ umożliwiający testowanie i poprawę elektrokompatybilności urządzeń telekomunikacyjnych I wyposażenia sieci smart grid. Układ pracuje w zakresie częstotliwości 150 kHz – 30 MHz.

Novel probe position for WBFC measurement method

Ruzek V., Drinovsky J., Zachar J.

Przegląd Elektrotechniczny

2012

R. 88, nr 3a

220-224

PCB with mounted IC can produce wide spectrum of harmful signals. One of the way, how to measure this disturbance is WBFC measurement method. This paper deals with numerical simulation of this method, especially about geometrical orientation of the measurement probe, and its influence to the measurement results with same conditions. The effect of changed boundary conditions and comparison between simulation in free space and closed Faraday cage is also simulated there.

W artykule opisano zastosowanie metody WBFC (Workenbach Faraday Cage) do pomiaru zakłóceń wysokoczęstotliwościowych.

A Novel EBG Structure with Embedded Meander Bridge and Its Applications on SI and PI

Yan Z., Yu W., Cao J., Wang W., Han Y., Rahman T.

Przegląd Elektrotechniczny

2012

R. 88, nr 7b

294--299

This paper proposes an embedded meander bridge planar EBG structure, which can effectively suppress ultra-wideband (UWB) simultaneous switching noise (SSN) in power/ground plane pairs. This paper demonstrates that the valid -30 dB suppression bandwidth of the novel EBG structure is from 500 MHz to 14.5 GHz, covering a range of 14GHz. Furthermore, the effects of the EBG power plane on signal integrity (SI) is investigated. The design rules of the signal lines over the EBG power/ground plane pairs are also studied. The simulated and measured results are compared to verify the performance.

W artykule opisano mostkową strukture EBG typu meander która umożliwia skuteczne tłumienie szumów szerokopasmowych. Układ umożliwia tłumienie o 30 dB sygnałów w paśmie 500 MHz – 14.5 GHz.