Numerical study on drastic-variation condition of electric field in microwave heating system

Microwave heating usually leads to non-uniform temperatures due to the existence of drastic variation of electric field. In this study, a numerical method combined with integral equation and spectrum analysis is proposed to find its generation condition. Results show that the electric field is gener...

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Published in2017 International Applied Computational Electromagnetics Society Symposium (ACES) pp. 1 - 2
Main Authors Zhengming Tang, Sanmei Zhang, Tao Hong, Yonghong Zhou, Yinghong Liao
Format Conference Proceeding
LanguageEnglish
Published Applied Computational Electromagnetics Society 01.08.2017
Subjects
Cavity resonators
condition
Dielectrics
drastic variation
Electric fields
Electromagnetic heating
microwave heating
Microwave theory and techniques
Resistance heating
uniformity
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Abstract Microwave heating usually leads to non-uniform temperatures due to the existence of drastic variation of electric field. In this study, a numerical method combined with integral equation and spectrum analysis is proposed to find its generation condition. Results show that the electric field is generally unstable, and a tiny shift in microwave frequency, permittivity of dielectric object or cavity geometrical parameters will produce a drastic variation in electric field distribution, moreover, the smallest shift of parameter can be obtained by reverse search. FEM method is used to verify the conclusions.
AbstractList Microwave heating usually leads to non-uniform temperatures due to the existence of drastic variation of electric field. In this study, a numerical method combined with integral equation and spectrum analysis is proposed to find its generation condition. Results show that the electric field is generally unstable, and a tiny shift in microwave frequency, permittivity of dielectric object or cavity geometrical parameters will produce a drastic variation in electric field distribution, moreover, the smallest shift of parameter can be obtained by reverse search. FEM method is used to verify the conclusions.
Author Tao Hong
Yinghong Liao
Zhengming Tang
Yonghong Zhou
Sanmei Zhang
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  surname: Tao Hong
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  organization: China West Normal Univ., Nanchong, China
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  surname: Yonghong Zhou
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  organization: China West Normal Univ., Nanchong, China
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  surname: Yinghong Liao
  fullname: Yinghong Liao
  organization: Southwest Univ., Chongqing, China
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Snippet Microwave heating usually leads to non-uniform temperatures due to the existence of drastic variation of electric field. In this study, a numerical method...
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SubjectTerms Cavity resonators
condition
Dielectrics
drastic variation
Electric fields
Electromagnetic heating
microwave heating
Microwave theory and techniques
Resistance heating
uniformity
Title Numerical study on drastic-variation condition of electric field in microwave heating system
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