A Component-Level Radio-Frequency Interference Evaluation Method for Mobile Devices

被引：18

作者：

Song, Eakhwan ^{[1
]}

Park, Hyun Ho ^{[2
]}

机构：

[1] Samsung Elect Co Ltd, Global Prod Technol Ctr, Suwon 443742, Gyeonggi, South Korea

[2] Univ Suwon, Dept Elect Engn, Hwaseong 445743, Gyeonggi, South Korea

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2013年 / 55卷 / 06期

关键词：

Component; mobile device; radio-frequency interference (RFI); radio-frequency sensitivity; RFI evaluation; specification;

D O I：

10.1109/TEMC.2013.2265333

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：

In this letter, a radio-frequency interference (RFI) evaluation method for highly integrated mobile devices, such as smartphones and tablets, is proposed. A near-field specification for noise-emitting components in mobile devices is developed based on near-field emission measurements and RF sensitivity measurements of mobile devices with the bit-error-rate (BER) test. To devise the specification, a derivative relation between the near-field strength of noise sources and the system-level RF sensitivity is newly suggested using the theoretical relationship between the signal to interference and noise ratio and the probability of error in communication systems, and verified with empirical measurements. Using the proposed algorithm, an RFI evaluation specification for commercial camera modules widely used in modern smartphones was established at several RF communication bands.

引用

页码：1358 / 1361

页数：4

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