Noise reduction and design methodology in mixed-signal systems with alternating impedance electromagnetic bandgap (AI-EBG) structure

Author

Choi, Jinwoo ; Govind, Vinu ; Mandrekar, Rohan ; Janagama, Sunanda ; Swaminathan, Madhavan

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2005

fDate

12-17 June 2005

Abstract

This paper presents noise suppression and design methodology in mixed-signal systems with alternating impedance electromagnetic bandgap (AI-EBG) structure. The AI-EBG structure was developed recently and applied for noise isolation/suppression in mixed-signal systems. In this paper, the mixed-signal systems with and without the AI-EBG structure were designed and fabricated to see noise reduction effect due to AI-EBG structure. This AI-EBG structure showed excellent noise suppression in mixed-signal systems by suppressing all harmonic noise peaks due to digital circuits in a stopband range of -100 dB isolation (S₂₁) level. However, without carefully designing mixed-signal system with the AI-EBG structure, the use of the AI-EBG structure could cause problems associated with signal integrity as well as electromagnetic interference (EMI). In this paper, excellent noise suppression with AI-EBG structure is shown and design methodology in mixed-signal systems with AI-EBG structure is proposed to avoid possible problems associated with signal integrity as well as EMI.

Keywords

electromagnetic interference; integrated circuit design; integrated circuit noise; microwave materials; mixed analogue-digital integrated circuits; AI-EBG structure; EMI; alternating impedance electromagnetic bandgap; design methodology; digital circuits; electromagnetic interference; harmonic noise; mixed-signal systems; noise isolation; noise reduction; noise suppression; signal integrity; Circuit noise; Design methodology; Digital circuits; Electromagnetic interference; Impedance; Metamaterials; Noise reduction; Periodic structures; Power supplies; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1516751

Filename

1516751