Measurement-Based Quantification of Buzz Noise in Wireless Devices

Abstract

When a wireless device is connected to wireless networks such as Wi-Fi and GSM, annoying noise in audible frequency range, named buzz noise, can appear in the audio system. The characterization and quantification of buzz noise provide the theoretical fundamental for solving this problem. It has been discovered that the buzz noise is converted from the radio frequency (RF) signal through the unexpected square-law demodulation in the microphone. Based on the buzz noise generation mechanism, this paper developed a two-port network model to quantify the RF noise coupling path and the conversion from RF noise to buzz noise. The results have been validated by repeating the measurements with different RF coupling path.

Meeting Name

2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019 (2019:Jun. 3-7, Sapporo, Japan)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Boundary Condition; Deep Learning; Dynamic Simulation; PN Junction; Poisson's Equation

International Standard Book Number (ISBN)

978-488552322-9

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 The Institute of Electronics, Information and Communication Engineer, All rights reserved.

Publication Date

01 Jun 2019

Link to Full Text

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