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

US12095135B2 · kind B2 · utility

Assignee

• Anhui University · CN

Inventors

• Xingang REN · Hefei, CN
• Shengyang Wei · Burnaby, CA
• Yali Zhao · Beijing, CN
• Guoxing Sun · Thompson Drive, CN
• Jiayu Rao · Hefei, CN
• Gang Wang · Milpitas, US
• Kaikun NIU · Hefei, CN
• Xianliang Wu · Dresher, US
• Zhixiang Huang · Hefei, CN
• Yingsong Li · Hefei, CN
• Yong Peng · Beijing, CN

Key dates

• Filing date: Dec 13, 2023
• Grant date: Sep 17, 2024
• Expiry date: Dec 13, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D30/70
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

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.