从五十年代初期以来,微波较高频段的大功率、连续波的功率器件相继地出现,微波的应用除了早先用于雷达、通讯、射电天文、遥控遥测等领域外,还越来越广泛地用于国民经济的其他各个领域,诸如医学上的理疗、农业上的除草灭虫,工业上的无尘烘烤直到生活上的烹饪等等一些与生活密切相关的经济部门。然而由于微波源在设计、安装、加工或使用不当而使部分的微波能量泄漏在设备的周围空间。这些能量的泄漏不但减低了微波源的使用效率,也可能干扰其他设备,更重要的是过大量剂、长时间的泄漏会造成对操作者身体健康的损害。因此,对微波源能量泄漏的检测就显 Since the early 1950s, high-power, continuous-wave power devices at higher frequencies of microwaves have appeared one after another. The application of microwaves has been more and more widely used in fields such as radar, communications, radio astronomy and telemetry, Used in other areas of the national economy, such as medical physiotherapy, herbicides and pests in agriculture, industrial dust-free baking until life’s cooking and so on, and some closely related to the economic sector. However, part of the microwave energy is leaked in the surrounding space of the device due to improper design, installation, processing or use of the microwave source. Leakage of these energies not only reduces the efficiency of microwave sources, but also may interfere with other equipment, and more importantly, excessive doses. The prolonged leakage may cause health damage to the operator. Therefore, the detection of energy leakage of the microwave source is obvious