Raytron Technical Review RESEARCH ARTICLE
CCA导体高频趋肤效应
Skin Effect in CCA Conductors at High Frequencies
收稿: 2025年12月 接受: 2026年2月 发布: 2026年3月
DOI: 10.1234/raytron.2026.WP-02-11
1. Introduction
1.1 趋肤效应优势
在高频下，电流集中在导体Surface附近。
Skin Effect EffectCurrent Distribution Schematic Diagram
MEDIA TODO2. Skin Effect
2.1 基本方程
δ = √(ρ/πfμ)
(1) 2.2 电流Density
J(r) = J₀ e^(-(R-r)/δ)
(2) 3.
Skin Depth vs Frequency Variation Curve
MEDIA TODO4. Analysis
AC ResistanceRatio vs Frequency Variation Diagram
MEDIA TODO5. Performance
6. Conclusion
趋肤效应使CCA在频Applications中表现接近实心铜，提供和Weight。
图表
Skin Effect EffectCurrent Distribution Schematic Diagram
Skin Depth vs Frequency Variation Curve
AC ResistanceRatio vs Frequency Variation Diagram
表格
Table 1 Skin Effect EffectAdvantage
| Frequency | Current Distribution | CCAAdvantage |
|---|---|---|
| DC/LowFrequency | Uniform | No |
| in Frequency | Surface偏移 | 出现 |
| HighFrequency | OnlySurface | FullAdvantage |
Table 2 Skin DepthCalculatedValue
| Frequency | Cu δ (μm) | Al δ (μm) |
|---|---|---|
| 1 MHz | 66 | 85 |
| 10 MHz | 21 | 27 |
| 100 MHz | 6.6 | 8.5 |
| 1 GHz | 2.1 | 2.7 |
Table 3 AC ResistanceRatio
| Frequency | RAC/RDC (Cu) | RAC/RDC (CCA) |
|---|---|---|
| 60 Hz | 1.00 | 1.00 |
| 100 kHz | 1.10 | 1.15 |
| 1 MHz | 1.25 | 1.30 |
| 10 MHz | 1.80 | 1.85 |
Table 4 Design Optimization Guide
| FrequencyScope | MinimumCopper Thicknessss | RecommendedCCAetc. Grade |
|---|---|---|
| <1 MHz | ≥50 μm | CCA-70%+ |
| 1-100 MHz | ≥20 μm | CCA-62%+ |
| >100 MHz | ≥10 μm | 任何CCA |
参考文献
- Microwave Engineering (4th ed.) Wiley (2011)
- Fields and Waves in Communication Electronics Wiley (1994)
