摘要
为探索高功率高增益天线的实现途径，提出并设计了一种矩形径向线馈电螺旋阵．阐述了矩形径向线馈电螺旋阵的工作原理，对辐射单元、耦合探针和馈电系统进行了详细设计，进而得到一个X波段4单元阵列天线模型．对该模型进行的数值模拟结果表明，在8．5—10．3GHz的频带范围内，天线反射系数小于0．1，增益大于12dB，轴向轴比值小于1．9．
To probe into the approach of array antenna with high power and high gain, a square helical array antenna fed from a radial line was proposed and designed, and its fundamental principle was presented. The radiation element, the coupling probe and the feeding system were designed in details, as a result, an X-band 4-element array model was obtained. The numerical simulation result of the array model shows that in the range of 8.5 to 10.3 GHz, the antenna reflectance is below 0.1, the antenna gain is over 12 dB, and the antenna axial ratio is below 1.9.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2008年第6期788-792,共5页
Journal of Southwest Jiaotong University
关键词
螺旋天线
矩形阵列天线
径向线
耦合探针
数值模拟
helical antenna
square array
radial line
coupling probe
numerical simulation
