| 一种新型圆极化接收有源集成天线的设计 |
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| 引用本文： | 康成斌,杜占坤,阎跃鹏,梁晓新.一种新型圆极化接收有源集成天线的设计[J].电波科学学报,2010(5). |
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| 作者姓名： | 康成斌 杜占坤 阎跃鹏 梁晓新 |
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| 作者单位： | 中国科学院微电子研究所; |
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| 基金项目： | 国家高科技发展计划资助项目(2009AA12Z314;2007AA12Z343) |
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| 摘 要： | 提出了一种新型圆极化接收有源集成天线的设计方法,采用有源放大与无源辐射部分一体化设计理念,通过合理改变天线的输出阻抗,直接与低噪声放大器晶体管输入端进行匹配,省去了传统设计中的复杂匹配网络,降低了天线前端的匹配损耗,改善了天线接收系统的噪声和增益。利用此方法设计了一款C波段圆极化接收有源集成天线。测试结果表明:相对于传统设计方法,该方法在方向图和轴比性能基本相同的情况下,阻抗带宽改善了3%,输入端匹配损耗减小了0.3 dB,同时简化了电路结构。证明了该方法的有效性。
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| 关 键 词： | 有源集成 圆极化 CMOS低噪声放大器 一体化设计 阻抗匹配 |
Design of a novel circularly polarized receiving active integrated antenna |
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| KANG Cheng-bin DU Zhan-kun YAN Yue-peng LIANG Xiao-xin.Design of a novel circularly polarized receiving active integrated antenna[J].Chinese Journal of Radio Science,2010(5). |
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| Authors: | KANG Cheng-bin DU Zhan-kun YAN Yue-peng LIANG Xiao-xin |
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| Institution: | KANG Cheng-bin DU Zhan-kun YAN Yue-peng LIANG Xiao-xin(Institute of Microelectronics of Chinese Academy of Sciences,Beijing 100029,China) |
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| Abstract: | A novel circularly polarized receiving active integrated antenna is presented in this paper.By matching the antenna directly to the input of the low noise amplifier(LNA)transistor,the active integrated antenna can completely eliminate the loss of matching networks between antenna and LNA and improve the noise figure and power gain of the receiving antenna system.A C-band circularly polarized receiving active integrated antenna was designed and fabricated.Measured results show that compared to a traditional ... |
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| Keywords: | active integration circular polarization CMOS LNA co-design impedance matching |
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