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FILTERING DEVICE AND DIFFERENTIAL SIGNAL TRANSMISSION CIRCUIT CAPABLE OF SUPPRESSING COMMON-MODE NOISES UPON TRANSMISSION OF A DEIFFERENTIAL SIGNAL
FILTERING DEVICE AND DIFFERENTIAL SIGNAL TRANSMISSION CIRCUIT CAPABLE OF SUPPRESSING COMMON-MODE NOISES UPON TRANSMISSION OF A DEIFFERENTIAL SIGNAL
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机译:能够抑制微分信号传输中的共模噪声的滤波装置和微分信号传输电路
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摘要
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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