一种用于微波热疗的环形聚焦天线设计
Hexagonal Focused Array for Microwave Hypertiermia
本文通过优化由环形发射天线阵列、微波体模及接收天线构成的功率传输系统的功率传输效率来设计可应用于微波热疗的聚焦阵列天线。采用偶极子天线作为虚拟接收天线，并放置于微波体模内部（近场区域）所需要聚焦的位置；通过优化功率传输系统的最大传输效率，即可以获得发射天线阵列的最佳激励。基于这种方法，文中设计了一种工作频率为433MHz的可适用于微波热疗的36单元环形阵列聚焦天线。实验结果和仿真结果吻合，发射天线能有效的将能量聚集在目标区域，周围无其它能量"热点"，且实际聚焦位置与理想位置无偏差，表明了设计的36单元环形阵列具有良好的聚焦效果。
36-element hexagonal focused array operating at 433MHz for microwave hyperthermia have been designed by optimizing the power transmission efficiency of the system consisting of a transmitting hexagonal array, a testing (receiving) antenna, and an equivalent phantom representative of human body. A dipole antenna is utilized as the receiving antenna,which is placed in the near-field target zone. The optimal excitations of the arrays are obtained by optimizing the power transmission efficiency of the whole system. Simulation and experimental results agree very well. The fabricated array focuses at the point exactly as simulated and does not induce hot spots in adjacent tissues, demonstrating a good focusing capability.
王身云、文舸一、贺小平
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微波热疗环形聚焦阵列人体模型馈电网络
Microwave hyperthermiahexagonal focused antenna arraybody-mimicking phantomfeeding network
王身云,文舸一,贺小平.一种用于微波热疗的环形聚焦天线设计[EB/OL].(2015-02-13)[2025-09-03].http://www.paper.edu.cn/releasepaper/content/201502-169.点此复制
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