摘要
阐述COBRA天线的工作原理,运用口面场法计算出天线的辐射公式,最后分别通过数值计算和软件模拟的方式,对Ka波段的COBRA天线进行了数值分析,实现了天线的圆极化轴向辐射。在工作频率为34 GHz时,增益可达27.3 dBi,主瓣宽度为4.6°,旁瓣电平为-10.2 dB。
The operation principle of COBRA is described.Based on the analysis of aperture field,the radiation equation of COBRA antenna is worked out.By means of numerical computation and software simulation,numerical analysis on Ka band COBRA is carried out,and it is realized that the antenna can produce a circular polarized pattern with a boresight peak.At the operating frequency of 34 GHz,the gain,angular width,side lobe level are 27.3 dBi,4.6 degree,-10.2 dB.
出处
《现代电子技术》
2010年第7期56-58,共3页
Modern Electronics Technique
基金
国家自然科学基金资助项目(60671032)
