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    • 9. 发明授权
    • Electromagnetic bandgap structure and printed circuit board
    • 电磁带隙结构和印刷电路板
    • US07965521B2
    • 2011-06-21
    • US12010558
    • 2008-01-25
    • Mi-Ja HanHan KimDae-Hyun ParkJae-Joon Lee
    • Mi-Ja HanHan KimDae-Hyun ParkJae-Joon Lee
    • H05K9/00
    • H01P1/2005H05K1/0236H05K2201/09309H05K2201/09663H05K2201/0969
    • An electromagnetic bandgap structure and a printed circuit board that can solve a mixed signal problem between an analog circuit and a digital circuit are disclosed. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure can include a first metal layer; a first dielectric layer, stacked in the first metal layer; a metal plate, stacked in the first dielectric layer; a via, connecting the first metal layer to the metal plate; a second dielectric layer, stacked in the metal plate and the first dielectric layer; and a second metal layer, stacked in the second dielectric layer. Here, a hole can be formed on the metal plate. With the present invention, the electromagnetic bandgap structure can lower a noise level more within the same frequency band as compared with other structures having the same size.
    • 公开了可解决模拟电路和数字电路之间的混合信号问题的电磁带隙结构和印刷电路板。 根据本发明的实施例,电磁带隙结构可以包括第一金属层; 第一介电层,堆叠在第一金属层中; 金属板,堆叠在第一介电层中; 通孔,将所述第一金属层连接到所述金属板; 第二电介质层,堆叠在所述金属板和所述第一介电层中; 和第二金属层,堆叠在第二介电层中。 这里,可以在金属板上形成孔。 利用本发明,与具有相同尺寸的其他结构相比,电磁带隙结构可以在相同频带内更低噪声水平。
    • 10. 发明申请
    • Electromagnetic bandgap structure and printed circuit board
    • 电磁带隙结构和印刷电路板
    • US20080266026A1
    • 2008-10-30
    • US12010558
    • 2008-01-25
    • Mi-Ja HanHan KimDae-Hyun ParkJae-Joon Lee
    • Mi-Ja HanHan KimDae-Hyun ParkJae-Joon Lee
    • H03H7/00
    • H01P1/2005H05K1/0236H05K2201/09309H05K2201/09663H05K2201/0969
    • An electromagnetic bandgap structure and a printed circuit board that can solve a mixed signal problem between an analog circuit and a digital circuit are disclosed. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure can include a first metal layer; a first dielectric layer, stacked in the first metal layer; a metal plate, stacked in the first dielectric layer; a via, connecting the first metal layer to the metal plate; a second dielectric layer, stacked in the metal plate and the first dielectric layer; and a second metal layer, stacked in the second dielectric layer. Here, a hole can be formed on the metal plate. With the present invention, the electromagnetic bandgap structure can lower a noise level more within the same frequency band as compared with other structures having the same size.
    • 公开了可解决模拟电路和数字电路之间的混合信号问题的电磁带隙结构和印刷电路板。 根据本发明的实施例,电磁带隙结构可以包括第一金属层; 第一介电层,堆叠在第一金属层中; 金属板,堆叠在第一介电层中; 通孔,将所述第一金属层连接到所述金属板; 第二电介质层,堆叠在所述金属板和所述第一介电层中; 和第二金属层,堆叠在第二介电层中。 这里,可以在金属板上形成孔。 利用本发明,与具有相同尺寸的其他结构相比,电磁带隙结构可以在相同频带内更低噪声水平。