Inductance of a shielded coil

John C. Young; Chalmers M. Butler

doi:10.1109/8.931153

Inductance of a shielded coil

John C. Young
, Chalmers M. Butler

Producción científica: Article › revisión exhaustiva

12 Citas (Scopus)

Resumen

Models are developed for the inductance of a helical coil and a helical coil inside a conducting shield. Values of inductance are found from analysis. The dependence of inductance on the presence of the shield is assessed quantitatively and explained on the basis of physical principles, and the significance of skin and proximity effects in the wire coil is outlined. The inductance of an isolated, one-turn loop and a one-turn loop inside a conducting tube are measured and are found to be in excellent agreement with computed data. When the conducting shield and coil are very close, the inductance of the coil is found to be greatly diminished suggesting that one must account for the presence of shields when characterizing inductors, which might be used for loading and tuning of antennas. A nearby conducting shield must be accounted for in inductance calculations if reasonable accuracy is expected.

Idioma original	English
Páginas (desde-hasta)	944-953
Número de páginas	10
Publicación	IEEE Transactions on Antennas and Propagation
Volumen	49
N.º	6
DOI	https://doi.org/10.1109/8.931153
Estado	Published - jun 2001

Nota bibliográfica

Funding Information:
Manuscript received December 7, 1999; revised October 12, 2000. This work was supported by the Army Research Office under Grants DAAH04-95-1-0247 and DAAG55-98-1-0009. This work was also supported under a National Science Foundation Graduate Fellowship. The authors are with the Department of Electrical and Computer Engineering, P.O. Box 340915, Clemson University, Clemson, SC 29634-0915. Publisher Item Identifier S 0018-926X(01)05244-9.

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Financiación

Manuscript received December 7, 1999; revised October 12, 2000. This work was supported by the Army Research Office under Grants DAAH04-95-1-0247 and DAAG55-98-1-0009. This work was also supported under a National Science Foundation Graduate Fellowship. The authors are with the Department of Electrical and Computer Engineering, P.O. Box 340915, Clemson University, Clemson, SC 29634-0915. Publisher Item Identifier S 0018-926X(01)05244-9.

Financiadores	Número del financiador
National Science Foundation (NSF)
Army Research Office	DAAH04-95-1-0247, DAAG55-98-1-0009

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/8.931153

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title = "Inductance of a shielded coil",

abstract = "Models are developed for the inductance of a helical coil and a helical coil inside a conducting shield. Values of inductance are found from analysis. The dependence of inductance on the presence of the shield is assessed quantitatively and explained on the basis of physical principles, and the significance of skin and proximity effects in the wire coil is outlined. The inductance of an isolated, one-turn loop and a one-turn loop inside a conducting tube are measured and are found to be in excellent agreement with computed data. When the conducting shield and coil are very close, the inductance of the coil is found to be greatly diminished suggesting that one must account for the presence of shields when characterizing inductors, which might be used for loading and tuning of antennas. A nearby conducting shield must be accounted for in inductance calculations if reasonable accuracy is expected.",

keywords = "Antenna loads, Inductance, Shielded coils",

author = "Young, \{John C.\} and Butler, \{Chalmers M.\}",

note = "Funding Information: Manuscript received December 7, 1999; revised October 12, 2000. This work was supported by the Army Research Office under Grants DAAH04-95-1-0247 and DAAG55-98-1-0009. This work was also supported under a National Science Foundation Graduate Fellowship. The authors are with the Department of Electrical and Computer Engineering, P.O. Box 340915, Clemson University, Clemson, SC 29634-0915. Publisher Item Identifier S 0018-926X(01)05244-9. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

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PY - 2001/6

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N2 - Models are developed for the inductance of a helical coil and a helical coil inside a conducting shield. Values of inductance are found from analysis. The dependence of inductance on the presence of the shield is assessed quantitatively and explained on the basis of physical principles, and the significance of skin and proximity effects in the wire coil is outlined. The inductance of an isolated, one-turn loop and a one-turn loop inside a conducting tube are measured and are found to be in excellent agreement with computed data. When the conducting shield and coil are very close, the inductance of the coil is found to be greatly diminished suggesting that one must account for the presence of shields when characterizing inductors, which might be used for loading and tuning of antennas. A nearby conducting shield must be accounted for in inductance calculations if reasonable accuracy is expected.

AB - Models are developed for the inductance of a helical coil and a helical coil inside a conducting shield. Values of inductance are found from analysis. The dependence of inductance on the presence of the shield is assessed quantitatively and explained on the basis of physical principles, and the significance of skin and proximity effects in the wire coil is outlined. The inductance of an isolated, one-turn loop and a one-turn loop inside a conducting tube are measured and are found to be in excellent agreement with computed data. When the conducting shield and coil are very close, the inductance of the coil is found to be greatly diminished suggesting that one must account for the presence of shields when characterizing inductors, which might be used for loading and tuning of antennas. A nearby conducting shield must be accounted for in inductance calculations if reasonable accuracy is expected.

KW - Antenna loads

KW - Inductance

KW - Shielded coils

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EP - 953

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 6

ER -

Inductance of a shielded coil

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Nota bibliográfica

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ASJC Scopus subject areas

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