本质安全型无线压力传感器天线设计  

Design of antenna of intrinsic safety wireless pressure sensor

作　　者：刘鑫[1] 常青[1] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024

出　　处：《工矿自动化》2015年第2期29-31,共3页Journal Of Mine Automation

基　　金：山西省自然科学基金资助项目(2013011015-1)

摘　　要：提出了一种煤矿井下本质安全型无线压力传感器天线结构的设计方案,研究了金属外壳一侧开口时其参数及天线位置对天线增益的影响。仿真与实测结果表明,天线增益随金属外壳的开口长度和宽度的增大而增加,且增加幅度逐渐减小;天线增益随天线距开口的距离减少而增加;开口侧的金属外壳厚度每减少1mm,天线增益增加约2dB;金属外壳空间高度毫米级变化引起的天线增益变化基本可以忽略;当金属外壳的开口长度和宽度分别为天线波长的1/4与1/8,厚度为2mm,空间高度为41mm,天线位置距开口为1.4mm时,天线辐射增益达到最佳,天线的传播距离约为14m。The paper proposed a design scheme of antenna structure of underground intrinsic safety wireless pressure sensor,and researched impact of opening parameters of metal shell and antenna position on antenna gain.The simulation and test results show that antenna gain increases with increase of length and width of metal shell opening,but increased amplitude gradually decreases;antenna gain increases with decrease of distance between antenna and opening;antenna gain increases about 2dB when metal shell thickness of opening side reduces 1 mm;antenna gain changing caused by millimeter level changing of metal shell space height almost can be ignored;antenna gain achieves the best and antenna transmission distance is about 14 m when metal shell with length and width of opening are 1/4and 1/8of antenna wavelength respectively,thickness is 2 mm,space height is 41 mm,and distance between antenna and opening is 1.4mm.

关 键 词：本质安全 无线压力传感器 天线 天线增益 

分 类 号：TD67[矿业工程—矿山机电]