一种带孔外壳对天线辐射场抗干扰效应的计算模型和方法

黄英

摘 要：由于不同型號外壳上都具有通风孔、散热孔、通光孔等小孔，研究外壳上小孔对天线辐射场的影响效应就十分必要，建立模型的主要意义在于：通过分析天线辐射场从小孔处渗透入壳内的衍射波分布状态，有助于了解小孔衍射对外壳电磁防护能力的影响，并找到该辐射场对壳内电子元件产生干扰最强的位置，从而为外壳抗干扰效应的分析和电磁敏感元件的安装定位提供参考。针对小孔的特点研究其衍射效应，文章建立一种带孔外壳对天线辐射场抗干扰效应的计算模型，给出计算通过小孔的电磁辐射场的计算方法，为电磁敏感器件的定位提供参考。

关键词：带孔外壳；天线辐射场；抗干扰效应；计算方法

[参考文献]

[1]李光华，滕树云.小孔近场衍射的矢量与标量角谱理论研究[J].山东师范大学学报：自然科学版，2013（2）：53-55.

[2]张连璧.电磁脉冲与电磁屏蔽[M].台北：五南图书出版公司，2007.

[3]林国荣，张友德.电磁干扰及控制[M].北京：电子工业出版社，2004.

A Shell with Holes for Antenna Anti-jamming Effect of the Radiation Field Models and Methods

Huang ying

（Department of Fundamental Courses， Academy of Armored Force Engineering， Beijing 100072， China）

Abstract： Due to different model shell Shang are has ventilation hole， and thermal hole， and pass light hole， small hole， research shell Shang small hole on antenna radiation field of effect effect on is necessary， established model of main meaning is： through analysis antenna radiation field from small hole at penetration into shell within of diffraction wave distribution State， helps understand small aperture shot on Shell electromagnetic protection capacity of effect， and found the radiation field on Shell within electronic components produced interference most strong of location， Thus shell interference effect analysis and magnetic sensor installation location for reference. Characteristics of the diffraction effects for small holes and set up a shell with hole calculation model for antenna anti-jamming effect of the radiation field given electromagnetic field calculation method to calculate through small holes， provide a reference for positioning of electro-sensitive devices.

Key words： perforated shell； radiation field antennas； interference effect； calculation method