一种应用于浅表层肿瘤的微波热疗辐射器的设计  

Design of an Microwave Applicator Using for Tumor in Superficial Layer

作　　者：孙兵[1] 陆晓峰[2] 曹毅[3] 

机构地区：[1]苏州大学电子信息学院,江苏苏州215021 [2]苏州大学计算机科学与技术学院,江苏苏州215021 [3]苏州大学放射与公共卫生学院,江苏苏州215021

出　　处：《中国医疗器械杂志》2010年第3期198-201,共4页Chinese Journal of Medical Instrumentation

基　　金：江苏省高校自然科学基础研究项目资助(08KJB510019)

摘　　要：目的设计一个工作频率2.45GHz,结构为单矩形贴片的微波热疗辐射器。方法基于微带天线理论,设计辐射器参数,并在HFSS上建立仿真模型并进行优化。结果设计的辐射器首先经网络分析仪测试,满足设计的技术指标;在辐照实验中,采用红外热像仪测温,给出功率为30W、照射距离30mm、加热持续时间15min时的仿真体模的热场分布图。热场分布3D图显示热场中心区域径向直径小,透热深度深。结论该辐射器输出的微波能量可以准确到达浅表层肿瘤,而不损伤周围的正常组织。Objective A 2.45GHz microstrip applicator using single rectangle sheet structure is presented. Methods Based on the radiant principle of microstrip antenna, the applicator＇s parameter is designed and the simulating model is set and optimized in HFSS. Results Measured by network analyzer, the technical target of this applicator is complied with design demand. During irradiation experiment, based on 30 W power, 30 mm radiation distance and 15 min duration experiment condition, the thermal field distribution map of phantom is obtained from the far-infrared image instrument. The 3D map shows that the region of thermal field centre has small radius and deep heat penetration. Conclusion The microwave energy from this applicator can reach the tumor in superficial layer without heat injuring normal tissue around it.

关 键 词：微波辐射器 浅表层肿瘤 微带 热场分布 

分 类 号：O451[理学—无线电物理] O551.2[理学—物理]