Abstract
We have proposed a common-mode antenna model that is designed specifically for estimating common-mode radiation from printed circuit boards (PCBs) very quickly. The model is composed of an antenna that has the same geometry as the adjacent ground plane of the PCB and an excitation source based on an imbalance difference model. The excitation source is provided by the product of Δh and VN, where Δh is the difference in current division factors related to the cross-sectional structure of the transmission line, and VN is the voltage between the signal line and return plane of the transmission line. Here, we describe an experimental validation of the common-mode excitation carried out by measuring the reduction in radiation due to a guard trace placed close to a signal line with a narrow return plane. As a result, it was found that the total common-mode excitation can be given by a superposition of two excitation sources. The results also suggest that when designing the PCB, the guard trace should be grounded at the interface between different ground-plane widths to suppress noise.
| Original language | English |
|---|---|
| Article number | 4652109 |
| Journal | IEEE International Symposium on Electromagnetic Compatibility |
| Volume | 2008-January |
| DOIs | |
| Publication status | Published - Jan 1 2008 |
| Event | 2008 IEEE International Symposium on Electromagnetic Compatibility, EMC 2008 - Detroit, MI, Germany Duration: Aug 18 2008 → Aug 22 2008 |
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Keywords
- common-mode antenna model
- common-mode radiation
- guard trace
- imbalance difference model
- printed circuit board
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Experimental validation of imbalance difference model to estimate common-mode excitation in PCBs. / Toyota, Yoshitaka; Matsushima, Tohlu; Iokibe, Kengo; Koga, Ryuji; Watanabe, Tetsushi.
In: IEEE International Symposium on Electromagnetic Compatibility, Vol. 2008-January, 4652109, 01.01.2008.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Experimental validation of imbalance difference model to estimate common-mode excitation in PCBs
AU - Toyota, Yoshitaka
AU - Matsushima, Tohlu
AU - Iokibe, Kengo
AU - Koga, Ryuji
AU - Watanabe, Tetsushi
PY - 2008/1/1
Y1 - 2008/1/1
N2 - We have proposed a common-mode antenna model that is designed specifically for estimating common-mode radiation from printed circuit boards (PCBs) very quickly. The model is composed of an antenna that has the same geometry as the adjacent ground plane of the PCB and an excitation source based on an imbalance difference model. The excitation source is provided by the product of Δh and VN, where Δh is the difference in current division factors related to the cross-sectional structure of the transmission line, and VN is the voltage between the signal line and return plane of the transmission line. Here, we describe an experimental validation of the common-mode excitation carried out by measuring the reduction in radiation due to a guard trace placed close to a signal line with a narrow return plane. As a result, it was found that the total common-mode excitation can be given by a superposition of two excitation sources. The results also suggest that when designing the PCB, the guard trace should be grounded at the interface between different ground-plane widths to suppress noise.
AB - We have proposed a common-mode antenna model that is designed specifically for estimating common-mode radiation from printed circuit boards (PCBs) very quickly. The model is composed of an antenna that has the same geometry as the adjacent ground plane of the PCB and an excitation source based on an imbalance difference model. The excitation source is provided by the product of Δh and VN, where Δh is the difference in current division factors related to the cross-sectional structure of the transmission line, and VN is the voltage between the signal line and return plane of the transmission line. Here, we describe an experimental validation of the common-mode excitation carried out by measuring the reduction in radiation due to a guard trace placed close to a signal line with a narrow return plane. As a result, it was found that the total common-mode excitation can be given by a superposition of two excitation sources. The results also suggest that when designing the PCB, the guard trace should be grounded at the interface between different ground-plane widths to suppress noise.
KW - common-mode antenna model
KW - common-mode radiation
KW - guard trace
KW - imbalance difference model
KW - printed circuit board
UR - http://www.scopus.com/inward/record.url?scp=79951874834&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951874834&partnerID=8YFLogxK
U2 - 10.1109/ISEMC.2008.4652109
DO - 10.1109/ISEMC.2008.4652109
M3 - Conference article
AN - SCOPUS:79951874834
VL - 2008-January
JO - IEEE International Symposium on Electromagnetic Compatibility
JF - IEEE International Symposium on Electromagnetic Compatibility
SN - 0190-1494
M1 - 4652109
ER -