## Abstract

The Thévenin theorem is used to define the internal impedance per unit length (p.u.l.) of a uniform conducting wire of arbitrary cross-sectional geometry. Two different boundary value problems are then proposed for the calculation of the internal impedance of the wire, which are both consistent with the proposed Thévenin theorem-based definition. For the important case of rectangular conducting strips, an advantage is taken of the separable cross-sectional geometry for the development of analytical expressions for the internal impedance of the wires. It is shown that these expressions reproduce correctly both the resistance of the wire p.u.l. length at dc and the trend of R(ω) ≈ ω L(ω) at sufficiently high frequencies such that the skin effect is well developed.

Original language | English (US) |
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Pages (from-to) | 677-681 |

Number of pages | 5 |

Journal | IEEE Transactions on Electromagnetic Compatibility |

Volume | 49 |

Issue number | 3 |

DOIs | |

State | Published - 2007 |

## Keywords

- Frequency-dependent loss
- Interconnect modeling
- Internal impedance
- Skin effect

## ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering