 技術摘要 / Our Technology： |
一種共模雜訊濾波電路，包括層疊的一第一基板和一層板，第一基板的外表面佈設一對差動訊號線，第一基板與層板之間夾設沿該對差動訊號線延伸方向間隔排列並對稱於該對差動訊號線之間的一中心線的複數金屬板，層板的外表面佈設一接地面，以及複數導接部，設於該層板中，用以各別將各該金屬板導接至該接地面，藉此，使在該對差動訊號線上的共模雜訊可以被有效抑制且不致影響差動訊號的傳輸品質。
A filtering device is capable of suppressing common mode noises upon transmission of a differential signal, and includes a differential transmission line, a grounding layer, a dielectric unit and a conductive structure. The differential transmission line has a pair of conductive traces spaced apart from each other. The grounding layer is spaced apart from the differential transmission line. The dielectric unit is disposed between the differential transmission line and the grounding layer. The conductive structure is embedded in the dielectric unit, is coupled electrically to the conductive traces and the grounding layer, and cooperates with the differential transmission line, the grounding layer and the dielectric unit to form a stacked structure that has an effective negative permittivity, thereby suppressing the common mode noises coupled to the conductive traces. A differential signal transmission circuit is also disclosed.
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| 專利簡述 / Intellectual Properties： |
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聯繫方式 / Contact： |
| 臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU |
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| Email：ordiac@ntu.edu.tw |
電話/Tel：02-3366-9945 |
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專利行銷平台