The phenomenon and solution of EMI noise due to edge current effect of high efficiency on-board PIFA

Author

Hsiao-Bin Liang ; Dau-Chyrh Chang ; Cheng-Wei Chen ; Tai-Chen Chao ; Chin-Wen Chang ; Lin, Chih-ying

Author_Institution

Climax Technol. Co., Ltd., Taipei, Taiwan

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

191

Lastpage

195

Abstract

In this paper, the edge current phenomena of on-board antenna, PIFA, are simulated by full 3D EM simulator, GEMS of 2COMU. The simulation of current density interprets the current crowed effect which makes a sensible explanation for the occurring of EMI noise even if the differential PCB layout topology is obtained for signal trace routing. Bridge connection, a solution for diverting this EMI current under this circumstance is also presented by simulation and real case verification in this paper.

Keywords

electromagnetic interference; microstrip antennas; printed circuits; 2COMU; 3D EM simulator; EMI current; EMI noise; GEMS; PCB layout topology; edge current effect; high efficiency on-board PIFA; on-board antenna; printed inverted-F antenna; Bridge circuits; Current density; Electromagnetic interference; Grounding; Noise; Radio frequency; Routing; EMI; GEMS; PCB; PIFA; differential topology; on-board antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics, Applications and Student Innovation (iWEM), 2011 IEEE International Workshop on

Conference_Location

Taipei

Print_ISBN

978-1-61284-462-6

Electronic_ISBN

978-1-61284-461-9

Type

conf

DOI

10.1109/iWEM.2011.6021457

Filename

6021457