Measurement-Based Quantification of Buzz Noise in Wireless Devices
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.
Y. Zhong et al., "Measurement-Based Quantification of Buzz Noise in Wireless Devices," Proceedings of the 2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility (2019, Sapporo, Japan), pp. 552-555, Institute of Electrical and Electronics Engineers (IEEE), Jun 2019.
The definitive version is available at https://doi.org/10.23919/EMCTokyo.2019.8893648
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)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Boundary Condition; Deep Learning; Dynamic Simulation; PN Junction; Poisson's Equation
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2019 The Institute of Electronics, Information and Communication Engineer, All rights reserved.
01 Jun 2019