Ultra-wideband electromagnetic band gap (EBG) structure and circuit board

    公开(公告)号:US12095135B2

    公开(公告)日:2024-09-17

    申请号:US18539132

    申请日:2023-12-13

    申请人: Anhui University

    IPC分类号: H01P7/00 H05K1/02

    CPC分类号: H01P7/00 H05K1/0236

    摘要: An ultra-wideband electromagnetic band gap (EBG) structure includes multiple EBG units in an array. Each EBG unit includes a power plane, a dielectric substrate and a ground plane from top to bottom. The power plane includes a patch, a coupled complementary split ring resonator (C-CSRR) and a plurality of semi-improved Z-bridge structures. Each edge of the patch is provided with a semi-improved Z-bridge structure. The C-CSRR is provided within a ring formed by the semi-improved Z-bridge structures. The Z-bridge structure includes a first horizontal branch, a first vertical branch, a second horizontal branch and a second vertical branch connected in sequence. The second vertical branch is connected to the patch. First horizontal branches of adjacent EBG units are connected to each other. A circuit board including the aforementioned EBG structure is also provided.