| 近距离散射测量用Ka波段紧凑型阵列天线 |
| |
| 引用本文： | 王辉,苗俊刚,姜景山.近距离散射测量用Ka波段紧凑型阵列天线[J].北京航空航天大学学报,2010,36(11):1378-1381. |
| |
| 作者姓名： | 王辉 苗俊刚 姜景山 |
| |
| 作者单位： | 北京航空航天大学,电子信息工程学院,北京,100191;中国科学院空间科学与应用研究中心,北京,100190 |
| |
| 基金项目： | 航天科技创新基金，国家863计划资助项目 |
| |
| 摘 要： | 设计了一种工作于Ka波段的、用于近距离散射测量的四单元紧凑型阵列天线,在阵列近场实现了较均匀的幅相分布.辐射单元由角锥喇叭天线和E面金属板透镜天线组成.馈电网络由魔T、弯波导组成,为各辐射单元提供等幅同相馈电.采用阵列形式和采用透镜调节喇叭口面相位,都较大程度地减小了阵列的纵向尺寸,且电性能也有明显改善.给出了阵列天线近场的测试结果,并对测试结果进行了分析.在距离阵列口面0.5 m处,在与阵列宽度相同的范围内,幅度和相位波动分别在±2.5 dB和±25°左右.
|
| 关 键 词： | 天线 阵列 透镜 散射 近场 |
| 收稿时间： | 2009-10-13 |
Compact array antenna in Ka band for near-field scattering measurements |
| |
| Wang Hui,Miao Jungang,Jiang Jingshan.Compact array antenna in Ka band for near-field scattering measurements[J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(11):1378-1381. |
| |
| Authors: | Wang Hui Miao Jungang Jiang Jingshan |
| |
| Institution: | 1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China |
| |
| Abstract: | A four-element compact array antenna was designed operating in Ka band for near-field scattering measurements,and an approximately uniform amplitude and phase distribution in the near fields of array antenna was achieved.The radiating element consists of pyramidal horn antenna and E-plane metal-lens antenna.The feed network consists of magic T and bend waveguides,providing equal magnitude and phase signals for radiating elements.The lengthways length of the array is significantly reduced by employing array ... |
| |
| Keywords: | antennas arrays lenses scattering near field |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《北京航空航天大学学报》下载免费的PDF全文 |
|
