阻抗矩阵元素卷积计算的TDIE方法求解卫星天线辐射特性

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中图分类号：TNO11 文献标志码：A

Abstract： In recent years，the rapid development of satelite short-pulse radar and ultra-wideband communication has put forward new requirements for the electromagnetic analysis method of satelite antena，which can not only quickly and accurately analyze the broadband characteristics of the satellite antenna，but also solve the transient response of the satelite antenna to the electromagnetic pulse sequence.The time-domain impedance matrix is accurately calculated by the convolution of the differential operation of the time-based function and the vector potential generated by the pulse source，as well as the convolution of the integration of the time-based function and the scalar potential generated by the pulse source，and the satelite antenna radiation characteristics are solved by the time-domain integral equation method.The calculation examples show that when the MOT algorithm is used to solve the TDEFIE，the proposed method can be used to solve the satelite antenna radiation problem with a very stable and accurate solution.

Key words： electromagnetic fields and microwave technology； time-domain integral equation; satellite antenna；characteristics of radiation

0 引言

近年来，卫星短脉冲雷达和超宽带通信的迅速发展，对卫星天线的设计和电磁分析方法提出了新的要求，要求电磁分析方法不但能快速精确地分析卫星天线的宽频特性，还需求解出卫星天线对电磁脉冲序列的瞬态响应。（剩余5494字）