Crosstalk noise suppression is a crux in the high-speed integrated circuit design, which requires weak-coupling between transmission lines (TLs) over a wide band. To overcome the difficulty, this article presents a novel method to suppress the broadband crosstalk noise between a single TL and the differential pair based on spoof surface plasmon polaritons (SPPs). Due to the subwavelength feature of spoof SPP TLs, a natural mode mismatching between the spoof SPP TL and conventional microstrip (MS) brings a broadband suppression of near-field coupling. In order to verify the crosstalk suppression effect, four different kinds of prototypes are discussed and compared. The simulated and measured results in the frequency domain and time domain demonstrate that the proposed scheme achieves more than 83% far-end noise peak suppression than the traditional MS technology by replacing the single MS TL to the spoof SPP TL. Accordingly, the time-domain crosstalk noise is significantly suppressed without any extra costs, demonstrating its potential applications in ultracompact high-speed integrated circuits.

中文翻译：

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利用欺骗表面等离激元极化子抑制单线和差分传输线之间的串扰噪声

串扰噪声抑制是高速集成电路设计中的一个关键，这要求宽带上传输线（TL）之间的弱耦合。为了克服这一困难，本文提出了一种基于欺骗性表面等离子体激元极化子（SPPs）的抑制单个TL和差分对之间的宽带串扰噪声的新方法。由于欺骗性SPP TL的亚波长特性，欺骗性SPP TL与常规微带（MS）之间的自然模式失配带来了近场耦合的宽带抑制。为了验证串扰抑制效果，讨论并比较了四种不同的原型。在频域和时域的仿真和测量结果表明，与传统的MS技术相比，该方案通过将单个MS TL替换为欺骗性的SPP TL，实现了超过83％的远端噪声峰值抑制。因此，时域串扰噪声得到了显着抑制，而没有任何额外成本，证明了其在超紧凑型高速集成电路中的潜在应用。