基于波导缝隙辐射器的频率控制分区加热研究  

Research on Frequency-controlled Zonal HeatingBased on Waveguide Slot Radiator

作　　者：杜欣雨 陈茂顺 王诚卓 朱铧丞 杨阳[1] DU Xin-yu;CHEN Mao-shun;WANG Cheng-zhuo;ZHU Hua-cheng;YANG Yang(College of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学电子信息学院,四川成都610065 [2]广东美的厨房电器制造有限公司,广东佛山528300

出　　处：《真空电子技术》2025年第2期64-70,共7页Vacuum Electronics

基　　金：国家重点研发计划(2023YFB4603500);四川大学遂宁校市战略合作“揭榜挂帅”科技项目(2022CDSN-10);成都市揭榜挂帅项目(2024-JB00-00012-GX)。

摘　　要：现有微波分区加热系统采用相控阵技术,面临着成本高且系统复杂的问题。因此,提出了一种基于波导缝隙天线的两分区加热系统,能够通过2.3 GHz和2.65 GHz的频率控制实现腔内分区加热。首先,设计在不同频率下可以实现微波能量从不同的两种缝隙中分别进行辐射的波导缝隙辐射器;其次,用两个缝隙辐射器组成阵列,增强分区聚焦效应;最后,建立多物理场模型,结合实验验证了不同频率下利用波导缝隙辐射器直接实现腔内两分区加热的可行性。相较于采用相控阵系统来实现分区加热的方案,文中提出的系统简化了系统结构和步骤,降低了成本。Most of the existing microwave zonal heating technologies are realized by using phased array technology,which are costly and complex.A two-zone heating system based on waveguide slot antenna is proposed,which can realize frequency-controlled two-zone heating inside the cavity at 2.3 GHz and 2.65 GHz.Firstly,a waveguide slot radiator is designed to radiate microwave energy from two different gaps at different frequencies.Then,an array of two slit radiators is used to enhance the zonal focus.And finally,a multi-physics model is established to verify the feasibility of using waveguide slot emitter to directly realize two-zone heating inside the cavity at different frequencies.Compared to phased array systems,the proposed system simplifies the structures and process steps,and reduces costs.

关 键 词：波导缝隙辐射器 分区加热 微波加热 多物理场仿真 

分 类 号：TM925.54[电气工程—电力电子与电力传动] TM924.76