Summary
International Symposium on Antennas and Propagation
2012
Session Number:2E1
Session:
Number:2E1-5
AC Resistance of Copper Clad Aluminum Wires
Ning Guan, Chihiro Kamidaki, Takashi Shinmoto, Ken'ichiro Yashiro,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
We have proposed a copper clad aluminum (CCA) wire in which an aluminum wire is surrounded by a thin copper layer. CCA wires are mainly composed from aluminum that is rich in the earth and are light-weight and easy for soldering. In addition, they have lower loss caused by the proximity effect than commonly used copper wires at high frequencies. In this paper, the AC resistance caused by the skin and proximity effects of a CCA wire with circular cross-section is numerically analyzed. The theory agrees well with experiments and it is demonstrated that coils wound by CCA wires have lower AC resistance than those by copper wires under some circumstances.