摘要
广播电视发射天线是整个广播电视无线发射系统的一个重要环节,通过对广播电视发射天线场形的可视化计算,对于合理选择天线型式、合理配置天线的偏置、零点填充等具有重要的意义。通过数学模型的建立,以具体事例分析天线的水平方向性函数(图)及场形赋形,对于天线的垂直方向性图及能量利用提出了解决方案,同时提出了主波束下倾和零点填充的实现方法和解决途径。
Broadcasting transmission antenna is a key element of broadcasting radio transmit system. The visual calculation of the field is presented for the antenna form choice, beam control, and zero points cancellation. A mathematic model is built to analyze the horizontal directive diagram and the shaped beams, some solutions are also introduced for the antenna vertical directive diagram, radiation efficiency, down ward inclined main lobe and zero points cancellation.
出处
《电波科学学报》
EI
CSCD
北大核心
2008年第4期797-802,共6页
Chinese Journal of Radio Science
