Field Deviation in Radiated Emission Measurement in Anechoic Chamber for Frequencies up to 60 GHz and Deep Learning-Based Correction

Author:

Shi Feng12ORCID,Yan Liping1ORCID,Yang Xuping1ORCID,Zhao Xiang1,Gao Richard Xian-Ke3ORCID

Affiliation:

1. College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China

2. Northwest Oil Field Company, Sinopec Corporation, Urumqi 830011, Xinjiang, China

3. Institute of High Performance Computing, A∗STAR 138632, Singapore

Abstract

The measurement of radiated emission (RE) in an anechoic chamber becomes very challenging at high frequencies, up to 60 GHz, because the scanning plane of the receiver is in measurement standard deviation from the actual wavefront. As a result, the RE intensity of the devices may be underestimated, resulting in electromagnetic interference. The deviation between the electric field at the far-field vertical scanning point and the actual wavefront is researched. Then, in an anechoic chamber, a hybrid deep learning amendment model of convolutional neural network (CNN) and transformer is proposed to correct the RE measurement at a 3 m distance. The results indicate that the correction is reliable, with an average error of 6.35% for a 3 m distance in a semianechoic chamber and less than 4.83% for other test scenarios. The proposed method provides a promising solution for RE measurement at a millimeter wave band in an anechoic chamber.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Reference40 articles.

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2. Federal Communications Commissione_CFR Title 47 Part 15, Radio Frequency Devices2019Washington, DC, USAFederal Communications CommissionClause 15.109 Technical requirement

3. International Electrotechnical CommissionElectromagnetic Compatibility of Multimedia Equipment - Emission Requirement2015Geneva, SwitzerlandInternational Electrotechnical CommissionCISPR 32

4. American National Standards InstituteAmerican National Standard for Specifications of Electromagnetic Interference and Field Strength Measuring Instrumentation in the Frequency Range 9 kHz to 40 GHz2016New York, NY, USAAmerican National Standards InstituteANSI C63.2

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