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在天线及其照射馈源的工程设计中,会遇到十分困难的积分运算。这些积分运算,有时可以简化为无穷多个特殊函数的级数(如贝塞尔函数),有时却根本无法计算。本文结合七十年代新型宽频带波纹喇叭的设计实例,说明一般NOVA系列的小型多功能计算机如国产DJS-130、TQ-15、441-B等机器均可采用BASIC语言编制的计算程序,可很快地给出天线方向图等特性,从而为今后天线工程设计中采用计算机辅助设计(CAD),加速天线工程计算提供了一个良好的范例。波纹喇叭以圆对称、低旁瓣的方向图照射透镜天线和反射器天线。波纹喇叭的设计需要选择适当的张
In the antenna and its irradiation of the engineering design, will encounter very difficult integral operation. These integral operations can sometimes be simplified to infinitely many series of special functions (such as Bessel functions), sometimes not at all. In this paper, the 1970’s design example of a new wideband corrugated horn, indicating that general NOVA series of small multi-function computer such as domestic DJS-130, TQ-15,441-B and other machines can be used BASIC language programming, Giving the characteristics of the antenna pattern quickly and quickly, thus providing a good example for using CAD (Computer Aided Design) and accelerating antenna engineering calculation in the future antenna project design. Corrugated speakers illuminate the lens antenna and reflector antenna in a circularly symmetric, low-sidelobe pattern. Corrugated speaker design need to select the appropriate Zhang