Spatially-resolved near-field diagnosis of differential signaling performance for wireless device RFI/EMC applications

Author

Kai-Syuan Chen ; Yu-Hao Liu ; Tzyy-Sheng Horng

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan

fYear

2015

fDate

26-29 May 2015

Firstpage

551

Lastpage

553

Abstract

This paper presents a method to spatially diagnose amplitude and phase imbalances of high-frequency/high-speed differential signaling on a wireless device with a high resolution near-field scanning system. The principle of measuring the complex-valued magnetic near fields with vector network analyzer (VNA) is discussed. Then the measured complex-valued magnetic near fields over several differential circuits are used to study the radio-frequency interference (RFI) and electromagnetic compatibility (EMC) issues related to these circuits in a wireless device that is under a working state.

Keywords

electromagnetic compatibility; magnetic field measurement; near-field communication; network analysers; radio equipment; radiofrequency interference; telecommunication signalling; EMC; RFI; VNA; complex-valued magnetic near field measurement; differential signaling performance spatially-resolved near-field diagnosis; electromagnetic compatibility; high resolution near-field scanning system; high-frequency differential signaling; high-speed differential signaling; radiofrequency interference; vector network analyzer; wireless device RFI-EMC applications; Current measurement; Electromagnetic compatibility; Magnetic circuits; Magnetic field measurement; Microstrip; Probes; Wireless communication; Differential signaling; complex-valued near field measurement system; differential imbalances; radiated emissions; vector network analyser (VNA);

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (APEMC), 2015 Asia-Pacific Symposium on

Conference_Location

Taipei

Print_ISBN

978-1-4799-6668-4

Type

conf

DOI

10.1109/APEMC.2015.7175386

Filename

7175386