In view of the problems in the clinical application of microwave external radiator, the needle shaped waveguide excited radiator in the model of coaxial waveguide transition was replaced by a tapered Archimedian spirals radiator. It improves the standing wave ratio, reduces the radiator's volume and weight and decreases the microwave leak. The result is satisfactory with clinical practices.
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高蕴雅 钱鸿森.医用外照射微波辐射器的改进和临床应用[J].红外与毫米波学报,2001,20(2):143~146]. GAO Yun Ya MIAO Yi Qiang. IMPROVEMENT AND CLINICAL APPLICATION OF MEDICAL EXTERNAL MICROWAVE RADIATOR[J]. J. Infrared Millim. Waves,2001,20(2):143~146.]