摘要
余割平方波束天线具有快速定位目标的能力,并且能够覆盖到较大作用区域。介绍了这种天线的设计方法,包括中截面、赋形反射面、远场方向图以及增益的计算方法和常用公式。针对实际工程中调试方法不当所引起的波瓣偏移、方向图变形等现象,进行了详尽的介绍和说明并给出调试方法,从实测结果可见达到了预期效果。
The antenna with cosecant square beam can rapidly locate the position of object,and cover the larger effective region. The paper introduces the design method of the antenna, including the computation methods and the formulae for the central section, shaped reflector, far-field pattern and gain. The phenomena such as beam deflection and pattern distortion caused by the incorrect ad- justment methods in the actual engineering are introduced and illuminated in detail, and the correct adjustnent methods are given,which can attain the anticipative purpose from the measurement results.
出处
《无线电工程》
2012年第7期49-51,共3页
Radio Engineering
关键词
双弯曲面天线
余割平方波束
中截面
焦点带
double curved reflector antenna
cosecant square beam
central section
focus zone
