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A physics-based equivalent circuit model of the ceramic capacitor is proposed, which can reproduce frequency characteristics of its impedance including the often observed yet hitherto physically unexplained kinks appearing above the primary series resonance frequency. The model can also account for parasitic effects of external inductances. In order to efficiently analyze and gain engineering insight into ceramic capacitors with a large number of metallic laminae, a two-dimensional method of moments is developed that treats the laminar structure as a uniform, effective medium. It turns out that the primary resonance and the kinks can be well understood and modeled by a lossy transmission line stub with a drastic wavelength reduction. The capacitor model is completed by adding components describing the skin effect and external inductances. The modeled impedance stays within a 4% margin of error up to 5 GHz. The proposed model could greatly improve the accuracy of power distribution network simulation.

- Publication
- IEICE TRANSACTIONS on Electronics Vol.E93-C No.3 pp.347-354

- Publication Date
- 2010/03/01

- Publicized

- Online ISSN
- 1745-1353

- DOI
- 10.1587/transele.E93.C.347

- Type of Manuscript
- Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)

- Category

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Koh YAMANAGA, Shuhei AMAKAWA, Kazuya MASU, Takashi SATO, "A Universal Equivalent Circuit Model for Ceramic Capacitors" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 3, pp. 347-354, March 2010, doi: 10.1587/transele.E93.C.347.

Abstract: A physics-based equivalent circuit model of the ceramic capacitor is proposed, which can reproduce frequency characteristics of its impedance including the often observed yet hitherto physically unexplained kinks appearing above the primary series resonance frequency. The model can also account for parasitic effects of external inductances. In order to efficiently analyze and gain engineering insight into ceramic capacitors with a large number of metallic laminae, a two-dimensional method of moments is developed that treats the laminar structure as a uniform, effective medium. It turns out that the primary resonance and the kinks can be well understood and modeled by a lossy transmission line stub with a drastic wavelength reduction. The capacitor model is completed by adding components describing the skin effect and external inductances. The modeled impedance stays within a 4% margin of error up to 5 GHz. The proposed model could greatly improve the accuracy of power distribution network simulation.

URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.347/_p

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@ARTICLE{e93-c_3_347,

author={Koh YAMANAGA, Shuhei AMAKAWA, Kazuya MASU, Takashi SATO, },

journal={IEICE TRANSACTIONS on Electronics},

title={A Universal Equivalent Circuit Model for Ceramic Capacitors},

year={2010},

volume={E93-C},

number={3},

pages={347-354},

abstract={A physics-based equivalent circuit model of the ceramic capacitor is proposed, which can reproduce frequency characteristics of its impedance including the often observed yet hitherto physically unexplained kinks appearing above the primary series resonance frequency. The model can also account for parasitic effects of external inductances. In order to efficiently analyze and gain engineering insight into ceramic capacitors with a large number of metallic laminae, a two-dimensional method of moments is developed that treats the laminar structure as a uniform, effective medium. It turns out that the primary resonance and the kinks can be well understood and modeled by a lossy transmission line stub with a drastic wavelength reduction. The capacitor model is completed by adding components describing the skin effect and external inductances. The modeled impedance stays within a 4% margin of error up to 5 GHz. The proposed model could greatly improve the accuracy of power distribution network simulation.},

keywords={},

doi={10.1587/transele.E93.C.347},

ISSN={1745-1353},

month={March},}

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TY - JOUR

TI - A Universal Equivalent Circuit Model for Ceramic Capacitors

T2 - IEICE TRANSACTIONS on Electronics

SP - 347

EP - 354

AU - Koh YAMANAGA

AU - Shuhei AMAKAWA

AU - Kazuya MASU

AU - Takashi SATO

PY - 2010

DO - 10.1587/transele.E93.C.347

JO - IEICE TRANSACTIONS on Electronics

SN - 1745-1353

VL - E93-C

IS - 3

JA - IEICE TRANSACTIONS on Electronics

Y1 - March 2010

AB - A physics-based equivalent circuit model of the ceramic capacitor is proposed, which can reproduce frequency characteristics of its impedance including the often observed yet hitherto physically unexplained kinks appearing above the primary series resonance frequency. The model can also account for parasitic effects of external inductances. In order to efficiently analyze and gain engineering insight into ceramic capacitors with a large number of metallic laminae, a two-dimensional method of moments is developed that treats the laminar structure as a uniform, effective medium. It turns out that the primary resonance and the kinks can be well understood and modeled by a lossy transmission line stub with a drastic wavelength reduction. The capacitor model is completed by adding components describing the skin effect and external inductances. The modeled impedance stays within a 4% margin of error up to 5 GHz. The proposed model could greatly improve the accuracy of power distribution network simulation.

ER -