| VSAT和USAT站天线性能设计目标及其局限性 |
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| 引用本文： | 秦顺友, 张文静. VSAT和USAT站天线性能设计目标及其局限性[J]. 电波科学学报, 2014, 29(1): 195-200. doi: 10.13443/j.cjors.2013031501 |
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| 作者姓名： | 秦顺友 张文静 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北石家庄050081 |
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| 摘 要： | 简述了甚小口径天线终端（very small aperture terminal，VSAT）和超小口径天线终端（ultra small aperture terminal，USAT）站天线口径的划分及等效口径的计算方法.系统介绍了VSAT和USAT站天线性能的设计目标，即天线方向图的旁瓣特性、交叉极化特性和偏轴等效各向同性辐射功率.指出了VSAT和USAT站卫星通信天线性能设计目标的局限性，并提出了VSAT和USAT站天线方向图第一旁瓣电平要求的建议.
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| 关 键 词： | VSAT和USAT天线 天线口径 旁瓣特性 交叉极化 偏轴等效各向同性辐射功率 |
| 收稿时间： | 2013-03-15 |
Design objects and limitations of antenna for VSAT and USAT earth station |
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| QIN Shunyou, ZHANG Wenjing. Design objects and limitations of antenna for VSAT and USAT earth station[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2014, 29(1): 195-200. doi: 10.13443/j.cjors.2013031501 |
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| Authors: | QIN Shunyou ZHANG Wenjing |
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| Affiliation: | The 54th Institute of CETC, Shijiazhuang Hebei050081, China |
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| Abstract: | In this paper，antenna aperture division and equivalent diameter calculation are described simply for very small apreture terminal (VSAT) and ultra small aperture terminal (USAT) earth station antenna.Design objects of VSAT and USAT earth station antenna introduced systematically，side-lobe characteristic of antenna pattern，cross polarization characteristic of antenna，and characteristic of offaxis equivalent isotropically radiated power (EIRP).Limitations of design objects are pointed for VSAT and USAT earth station antennas，and recommendation of antenna pattern first side-lobe level request is put forward for VSAT and USAT earth station. |
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| Keywords: | VSAT and USAT antenna antenna aperture side-lobe characteristic cross polarization off-axis EIRP |
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