内置于高压开关柜的雪花型微带天线设计
发布时间：2019-05-17 04:48
【摘要】：针对高压开关柜内部结构复杂、绝缘距离小等特点,以微带天线为雏形设计了一种内置于高压开关柜的特高频传感器。该传感器首次以高压开关柜体作为传感器的信号参考地,使得天线与柜体一体化;并采用了Koch雪花型贴片作为天线辐射贴片,利用其呈现出的多频特性间接地拓展天线的检测频带。理论估算及仿真分析结果表明,雪花型微带天线仅在300~1 000 MHz频率范围内就有4个谐振点,且在谐振点均具有良好的阻抗匹配。实测结果表明天线能够对局部放电信号进行有效检测,且具有良好的检测灵敏度,验证了天线的有效性和实用性。
[Abstract]:In view of the complex internal structure and small insulation distance of high voltage switchgear, an ultra high frequency sensor built into high voltage switchgear is designed with microstrip antenna as the prototype. For the first time, the high voltage switch cabinet is used as the signal reference place of the sensor, which integrates the antenna and the cabinet. The Koch snowflake patch is used as the radiation patch of the antenna, and the detection frequency band of the antenna is indirectly expanded by using the multi-frequency characteristics of the patch. The theoretical estimation and simulation results show that the snowflake microstrip antenna has four resonance points in the frequency range of 300 鈮，
本文编号：2478814
[Abstract]:In view of the complex internal structure and small insulation distance of high voltage switchgear, an ultra high frequency sensor built into high voltage switchgear is designed with microstrip antenna as the prototype. For the first time, the high voltage switch cabinet is used as the signal reference place of the sensor, which integrates the antenna and the cabinet. The Koch snowflake patch is used as the radiation patch of the antenna, and the detection frequency band of the antenna is indirectly expanded by using the multi-frequency characteristics of the patch. The theoretical estimation and simulation results show that the snowflake microstrip antenna has four resonance points in the frequency range of 300 鈮，
本文编号：2478814
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