Isolation in mixed-signal systems using a novel electromagnetic bandgap (EBG) structure

被引:20
作者
Choi, JW [1 ]
Govind, V [1 ]
Swaminathan, M [1 ]
Wan, LX [1 ]
Doraiswami, R [1 ]
机构
[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
来源
ELECTRICAL PERFORMANCE OF ELECTRONIC PACKAGING | 2004年
关键词
D O I
10.1109/EPEP.2004.1407585
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents an efficient isolation method in mixed-signal systems using a novel electromagnetic banagap (EBG) structure called the alternating impedance EBG (Al-EBG) for isolating sensitive PF/analog circuits from noisy digital circuits. This EBG structure shows excellent isolation by suppressing almost all possible electromagnetic modes in banagap frequencies. Measurements on a practical mixed-signal system show the feasibility of using this EBG structure to reduce noise coupling between RF/analog circuits and digital circuits, especially where a common power supply is used. To the best of our knowledge, this is the first example of a realistic mixed-signal system employing an EBG-based noise suppression scheme.
引用
收藏
页码:199 / 202
页数:4
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