 技術摘要： |
本發明有關於一種具有槽狀式接地結構之濾波裝置及其等效總成電路,濾波裝置包括一基板,基板之上表面設置一對平行對稱之差動訊號線,而下表面設置一蝕刻有一槽狀式接地結構之接地面,於槽狀式接地結構與差動訊號線之間將可形成一濾波裝置的等效總成電路,藉此,利用接地面上蝕刻出的槽狀式接地結構將可有效地抑制特定頻帶內之共模雜訊,而避免干擾到差動訊號線所傳送的差模訊號。
The present invention is related to a filtering device with slotted ground structure, comprising a first substrate, a second substrate and a pair of differential signal lines, in which a ground plane having slotted ground structure is provided between the first substrate and the second substrate. Each of the two differential signal lines is symmetric to each other and comprises a first line segment being horizontally provided on the top surface of the first substrate and a second line segment being horizontally provided on the bottom surface of the second substrate, respectively. The first line segment is connected to the second line segment through a vertically disposed conductive via. Thereby, a common-mode noise within a specific frequency band may be suppressed effectively, so as to avoid interference a differential-mode signal transmitted on the differential signal lines, due to the slotted ground structure etched on the ground plane.
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