Abstract

Electronic circuits must address electromagnetic interference due to high-speed transmissions and simultaneous switching actions. This paper proposes a design of novel planar EBG structure L Bridge with embedded slit type with 3X3 array fashion, which can be used in a plane layer of a printed circuit board to reduce simultaneous switching noise (SSN). Two sets of pattern such as alternate structure and entire embedded pattern are considered and measured the cutoff frequencies. The performance of the structure is simulated, experimentally verified using R&S®ZVH Vector Network Analyzer for the frequency range 0.1 to 10 GHz and compared the outcomes. It is observed that for the -50 dB of noise depth, proposed structure is achieved 1.6 GHz to 10 GHz as lower and upper cut-off frequency. In addition to this concluded the noise suppression using equivalent circuit model and parallel plate wave guide theory. Signal integrity on this structure is also analysed with single ended and differential mode signal transition. Eye pattern is generated and compared for measuring and validating the signal quality while using this EBG structure.

摘要

由于高速传输和同时开关动作，电子电路必须解决电磁干扰问题。本文提出了一种新颖的平面EBG结构L桥设计，具有3X3阵列形式的嵌入式狭缝型，可用于印刷电路板的平面层以降低同时开关噪声（SSN）。考虑交替结构和整个嵌入图案等两组图案并测量截止频率。使用频率范围为 0.1 至 10 GHz 的 R&S®ZVH 矢量网络分析仪对结构的性能进行了仿真和实验验证，并对结果进行了比较。据观察，对于 -50 dB 的噪声深度，所提出的结构实现了 1.6 GHz 至 10 GHz 作为下限和上限截止频率。除此之外，还总结了使用等效电路模型和平行板波导理论的噪声抑制。还通过单端和差模信号转换分析了这种结构上的信号完整性。在使用此 EBG 结构时，会生成并比较眼图以测量和验证信号质量。