一種帶孔外殼對天線輻射場抗干擾效應的計算模型和方法

黃英

摘 要：由于不同型號外殼上都具有通風孔、散熱孔、通光孔等小孔，研究外殼上小孔對天線輻射場的影響效應就十分必要，建立模型的主要意義在于：通過分析天線輻射場從小孔處滲透入殼內的衍射波分布狀態，有助于了解小孔衍射對外殼電磁防護能力的影響，并找到該輻射場對殼內電子元件產生干擾最強的位置，從而為外殼抗干擾效應的分析和電磁敏感元件的安裝定位提供參考。針對小孔的特點研究其衍射效應，文章建立一種帶孔外殼對天線輻射場抗干擾效應的計算模型，給出計算通過小孔的電磁輻射場的計算方法，為電磁敏感器件的定位提供參考。

關鍵詞：帶孔外殼；天線輻射場；抗干擾效應；計算方法

[參考文獻]

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[2]張連璧.電磁脈沖與電磁屏蔽[M].臺北：五南圖書出版公司，2007.

[3]林國榮，張友德.電磁干擾及控制[M].北京：電子工業出版社，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