摘要
喇叭辐射器是由一段均匀波导和喇叭本身组成。而喇叭本身又是一段截面逐渐增大的波导。逐渐增大的目的一方面是为了改善其辐射的方向性,同时又是为了能保证得到所需的场分布,使之达到最良好的阻抗匹配。为了设计这类标准而又实用的辐射器,作者从喇叭内的电磁场结构,喇叭口的相位分布,方向图,增益及阻抗特性等方面作了较为系统的分析研究,最后给出实际的设计原则。
A horn radiator consists of a horn and a segment of a uniform waveguide. In fact, the horn itself is a segment of waveguide, too, which increases gradually from small to large so as to obtain necessary field distribution and achieve optimum impedance matching. In order to design a practical and standard radiator, here we make some systematic, analytic study on the structure of electromagnetic field in a horn,the phase distribution at its outlet, its radiation pattern, impedance characteristic, etc., and end the writing with a realistic design principle.
出处
《浙江师大学报（自然科学版）》
1992年第1期60-64,共5页
Journal of Zhejiang Normal University(Natoral Sciences)
关键词
喇叭辐射器
波导
馈送终端
horn radiator
radiation pattern
impedance matching
phase distribution
structure of electromagnetic field
