Solid-state microwave phase control for improved heating patterns in single-mode cavities

IF 6.8 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Innovative Food Science & Emerging Technologies Pub Date : 2025-08-18 DOI:10.1016/j.ifset.2025.104175

Xu Zhou , Zhongwei Tang , Patrick D. Pedrow , Juming Tang

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引用次数: 0

Abstract

Phase control is a unique feature of solid-state microwave generators. This study investigated how solid-state phase affected microwave fields and heating patterns of foods in a 915 MHz single-mode cavity of Microwave-Assisted Pasteurization System (MAPS). A 3D computer simulation model was developed and experimentally validated using a chemical marker method. Results showed that adjusting the phase differences between the top and bottom microwave entry ports shifted electric fields patterns and moved hot and cold zones vertically along the depth of food packages. Simulations also demonstrated that phase control can align high microwave energy zones with the central layers of food packages of varying thicknesses. This would otherwise require physical conveyor adjustments in commercial microwave systems. The study provides the first experimental validation of solid-state phase control in a 915 MHz single-mode cavity and establishes a modeling framework for dynamic phase control in industrial microwave processing.

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改进单模腔加热模式的固态微波相位控制

相位控制是固态微波发生器的一个独特特点。在915 MHz微波辅助巴氏杀菌系统（MAPS）的单模腔中，研究了固态相对微波场和食品加热模式的影响。建立了三维计算机仿真模型，并用化学标记法进行了实验验证。结果表明，调整上下微波入口的相位差可以改变电场模式，并沿食品包装深度垂直移动冷热区。模拟还表明，相位控制可以将高微波能区与不同厚度的食品包装的中心层对齐。否则，这将需要在商用微波系统中进行物理输送机调整。该研究首次在915 MHz单模腔中对固态相位控制进行了实验验证，并建立了工业微波处理中动态相位控制的建模框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Innovative Food Science & Emerging Technologies 工程技术-食品科技

CiteScore

12.00

自引率

6.10%

发文量

259

审稿时长

25 days

期刊介绍： Innovative Food Science and Emerging Technologies (IFSET) aims to provide the highest quality original contributions and few, mainly upon invitation, reviews on and highly innovative developments in food science and emerging food process technologies. The significance of the results either for the science community or for industrial R&D groups must be specified. Papers submitted must be of highest scientific quality and only those advancing current scientific knowledge and understanding or with technical relevance will be considered.