Study of impact of equivalent series inductance on high-speed board emissions
With rapidly growing circuit density and the demand for low power supply to ICs in high-speed printed circuit board (PCB) design, board emission issues tend to seriously deteriorate the power distribution network (PDN) on PCBs. Among a variety of proposed PDN designs and guidelines, the use of edge-...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/99074 http://hdl.handle.net/10220/12880 |
| _version_ | 1811696089614516224 |
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| author | Li, Kang-Rong See, Kye Yak Soh, Wei-Shan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Kang-Rong See, Kye Yak Soh, Wei-Shan |
| author_sort | Li, Kang-Rong |
| collection | NTU |
| description | With rapidly growing circuit density and the demand for low power supply to ICs in high-speed printed circuit board (PCB) design, board emission issues tend to seriously deteriorate the power distribution network (PDN) on PCBs. Among a variety of proposed PDN designs and guidelines, the use of edge-mounted capacitors to suppress board emissions is validated by measurements. The results demonstrated that the edge-mounted capacitors can effectively reduce the board edge emissions from a few MHz to 1 GHz. It is believed that the capacitors' inherent equivalent series inductance (ESL) limits the suppression of PDN impedance and board emissions above 1 GHz. In this paper, the impact of ESL on the board emissions will be analyzed. Simulation results show that the ESL of the edge-mounted capacitors of a few nH still provide a low PDN impedance for the power/ground plane pair. For ESL of a few uH or larger, the capacitors cannot effectively suppress the emissions and radiation. In addition, larger ESL will bring down the first board resonant frequency of the PDN impedance from above 1 GHz to few hundred MHz. Hence, a narrower frequency band with low PDN impedance. |
| first_indexed | 2024-10-01T07:33:49Z |
| format | Conference Paper |
| id | ntu-10356/99074 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:33:49Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/990742020-03-07T13:24:49Z Study of impact of equivalent series inductance on high-speed board emissions Li, Kang-Rong See, Kye Yak Soh, Wei-Shan School of Electrical and Electronic Engineering Asia-Pacific Symposium on Electromagnetic Compatibility (2012 : Singapore) DRNTU::Engineering::Electrical and electronic engineering With rapidly growing circuit density and the demand for low power supply to ICs in high-speed printed circuit board (PCB) design, board emission issues tend to seriously deteriorate the power distribution network (PDN) on PCBs. Among a variety of proposed PDN designs and guidelines, the use of edge-mounted capacitors to suppress board emissions is validated by measurements. The results demonstrated that the edge-mounted capacitors can effectively reduce the board edge emissions from a few MHz to 1 GHz. It is believed that the capacitors' inherent equivalent series inductance (ESL) limits the suppression of PDN impedance and board emissions above 1 GHz. In this paper, the impact of ESL on the board emissions will be analyzed. Simulation results show that the ESL of the edge-mounted capacitors of a few nH still provide a low PDN impedance for the power/ground plane pair. For ESL of a few uH or larger, the capacitors cannot effectively suppress the emissions and radiation. In addition, larger ESL will bring down the first board resonant frequency of the PDN impedance from above 1 GHz to few hundred MHz. Hence, a narrower frequency band with low PDN impedance. 2013-08-02T04:22:27Z 2019-12-06T20:02:55Z 2013-08-02T04:22:27Z 2019-12-06T20:02:55Z 2012 2012 Conference Paper https://hdl.handle.net/10356/99074 http://hdl.handle.net/10220/12880 10.1109/APEMC.2012.6237962 en |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Li, Kang-Rong See, Kye Yak Soh, Wei-Shan Study of impact of equivalent series inductance on high-speed board emissions |
| title | Study of impact of equivalent series inductance on high-speed board emissions |
| title_full | Study of impact of equivalent series inductance on high-speed board emissions |
| title_fullStr | Study of impact of equivalent series inductance on high-speed board emissions |
| title_full_unstemmed | Study of impact of equivalent series inductance on high-speed board emissions |
| title_short | Study of impact of equivalent series inductance on high-speed board emissions |
| title_sort | study of impact of equivalent series inductance on high speed board emissions |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/99074 http://hdl.handle.net/10220/12880 |
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