用MoM-UTD混合方法分析機載平臺天線間的隔離度
A Hybrid MoM-UTD Method for Analyzing Isolation between Antennas on Airborne Platform
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摘要: 天線間的隔離度是機載平臺電磁兼容(EMC)的重要指標之一。由于機載平臺的電尺寸很大，因此單純矩量法(MoM)很難解決。一致性幾何繞射理論(UTD)雖是高頻方法，適合解決電大問題，但其精度較低。該文采用MoM-UTD混合方法分析機載平臺天線間的隔離度，兼顧了計算精度和速度，得到的計算結(jié)果和測量值吻合良好。
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關(guān)鍵詞:
- MoM-UTD; 隔離度; 機載平臺; 電磁兼容
Abstract: Isolation between antennas is an important index for electromagnetic compatibility (EMC) on airborne platform. Airborne platform is an electrically large object and it is difficult to analyze the isolation between antennas mounted on it only by using the Method of Moment (MoM). The Uniform geometrical Theory of Diffraction (UTD) is a kind of high frequency method and can analyze electrically large objects, however, it has poor accuracy. The hybrid MoM-UTD method is employed to analyze the isolation between antennas on airborne platform. Both accuracy and computing speed are concerned, and the numerical results agree well with the measurements. -
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