NSSC OpenIR  > 微波遥感部
Alternative TitleCompact array antenna in Ka band for near field scattering measurements
王辉; 苗俊刚; 姜景山; 北京8701信箱
Source Publication北京航空航天大学学报
Keyword天线 阵列 透镜 散射 近场
Abstract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.
Other AbstractA 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 and E-plane metal-lens antenna, and the electrical perform ance is also improved. The near f ie lds of array antenna was tested,and the test results w ere ana lyzed. In the p lane 0.5m from the aperture of the array with width equal to that of the array, the amplitude and phase ripples are around ±2.5 dB and ±25° respectively.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
王辉,苗俊刚,姜景山,等. 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.
APA 王辉,苗俊刚,姜景山,&北京8701信箱.(2010).近距离散射测量用Ka波段紧凑型阵列天线.北京航空航天大学学报,36(11),1378-1381.
MLA 王辉,et al."近距离散射测量用Ka波段紧凑型阵列天线".北京航空航天大学学报 36.11(2010):1378-1381.
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