Internal impedance of conductors of rectangular cross section

Author

Antonini, Giulio ; Orlandi, Antonio ; Paul, Clayton R.

Author_Institution

Dept. of Electr. Eng., Rome Univ., Italy

Volume

47

Issue

7

fYear

1999

fDate

7/1/1999 12:00:00 AM

Firstpage

979

Lastpage

985

Abstract

It is shown that the resistance and internal inductive reactance of a conductor of rectangular cross section are not equal when skin effect is well developed, i.e., when the cross-sectional dimensions are much larger than a skin depth, unlike the case of a conductor of circular cylindrical cross section. Hence, the high-frequency internal inductance cannot be determined from the resistance and must be computed separately. Also, the widely used time-domain representation of the internal impedance B√s is not valid. Numerical results are given for conductors of various cross-sectional aspect ratios and dimensions

Keywords

conductors (electric); electric impedance; skin effect; aspect ratio; conductor; high-frequency internal inductance; internal impedance; internal inductive reactance; rectangular cross section; resistance; skin effect; time-domain analysis; Conductors; Electrical resistance measurement; Frequency; Inductance measurement; Printed circuits; Skin effect; Surface impedance; Surface resistance; Time domain analysis; Wire;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.775429

Filename

775429