The effect of sheet- and film-type electromagnetic noise suppressors on differential mode (DM) and common mode (CM) transmission characteristics in two parallel lines was investigated. Simple two parallel microstrip lines with a Co-Zr-Nb film were used as a test bench. The transmission characteristics of DM and CM were measured by four-port network analyzer. The ferromagnetic resonance (FMR) and eddy current losses generated in the Co-Zr-Nb film were calculated by 3D full wave simulator, and the effects of these losses on the transmission characteristics were estimated. The results show that the transmission characteristics are different in DM and CM because the frequency characteristics of the losses are different according to the different FMR frequency in each mode. Furthermore, the feasibility of the application of the magnetic film as a frequency-selective CM filter is demonstrated by using the difference in frequency characteristics of loss of DM and CM.

中文翻译：

---

Co-Zr-Nb 薄膜平行双导体微带线差模和共模传输特性评估

研究了片状和薄膜状电磁噪声抑制器对两条平行线路中差模 (DM) 和共模 (CM) 传输特性的影响。使用带有 Co-Zr-Nb 薄膜的简单两条平行微带线作为测试台。DM和CM的传输特性由四端口网络分析仪测量。通过 3D 全波模拟器计算了 Co-Zr-Nb 薄膜中产生的铁磁共振 (FMR) 和涡流损耗，并估算了这些损耗对传输特性的影响。结果表明，DM和CM的传输特性不同，因为损耗的频率特性根据每种模式中不同的FMR频率而不同。此外，