【摘要】：針對高壓開關(guān)柜內(nèi)部結(jié)構(gòu)復(fù)雜、絕緣距離小等特點(diǎn),以微帶天線為雛形設(shè)計(jì)了一種內(nèi)置于高壓開關(guān)柜的特高頻傳感器。該傳感器首次以高壓開關(guān)柜體作為傳感器的信號參考地,使得天線與柜體一體化;并采用了Koch雪花型貼片作為天線輻射貼片,利用其呈現(xiàn)出的多頻特性間接地拓展天線的檢測頻帶。理論估算及仿真分析結(jié)果表明,雪花型微帶天線僅在300~1 000 MHz頻率范圍內(nèi)就有4個(gè)諧振點(diǎn),且在諧振點(diǎn)均具有良好的阻抗匹配。實(shí)測結(jié)果表明天線能夠?qū)植糠烹娦盘栠M(jìn)行有效檢測,且具有良好的檢測靈敏度,驗(yàn)證了天線的有效性和實(shí)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，

本文編號：2478814