This letter presents a common-mode noise absorption (CMNA) circuit using the double-sided parallel-strip line (DSPSL). The circuit behaves as a pair of conventional transmission lines (TLs) under differential-mode (DM) excitation. The common-mode (CM) noise is suppressed and absorbed by the surface-mounted resistors between the two TLs. Based on analytical design equations, the values of the surface-mounted resistors can be calculated, and a high-efficiency CM absorption at the wide frequency band can be obtained. Finally, a practical CMNA circuit with wideband CM absorption is designed and fabricated to verify the design theory.

中文翻译：

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使用双面平行带状线的共模噪声吸收电路

这封信介绍了一种使用双面平行带状线 (DSPSL) 的共模噪声吸收 (CMNA) 电路。该电路在差模 (DM) 激励下表现为一对传统的传输线 (TL)。共模 (CM) 噪声被两个 TL 之间的表面贴装电阻抑制和吸收。基于分析设计方程，可以计算表面贴装电阻的值，并可以获得宽频带的高效共模吸收。最后，设计并制作了一个实用的具有宽带共模吸收的 CMNA 电路，以验证设计理论。