航天微带相控阵天线的设计论文.pdf

上海交通大学工程硕士研究生学位论文 i 航天微带相控阵天线的设计摘要天线技术是雷达系统中的一个关键技术而天线技术发展至今相控阵天线已经凸显出它特有的优势成为星载天线的主流微带天线越来越多的应用在C X等高波段上本文简要叙述了相控阵天线的原理特点及发展趋势分析了航天相控阵天线的特殊要求探讨了航天相控阵天线的可靠性框图和可靠性预计进而提出了航天相控阵天线以单元损坏率为变数的性能与可靠性的综合设计流程图这一设计方案得到了同行专家的认可交叉科学是现在科学研究的方向这一研究将多种科学综合考虑具有一定的价值然后用传输线模型对孔径耦合微带天线单元进行了分析同时使用Ansoft公司Ensemble软件进行计算机仿真设计通过原理图编辑系统仿真电路仿真优化综合版图设计完成了82单元微带天线阵的设计最后对天线进行测试并给出了测试结果实测结果与仿真结果一致满足课题的技术要求达到了国外同类产品的水平该项技术对后续星载宽频带双极化两维相控阵天线研制有一定的参考价值上海交通大学工程硕士研究生学位论文 ii 关键词航天相控阵天线波束扫描 T/R模块可靠性双极化上海交通大学工程硕士研究生学位论文 iii DEVELOPMENT OF ASTRONAUTICS MICROSTRIP PHASED ARRAY ANTENNA ABSTRACT Antenna technology is one of the most important technologies of radar system. Withdevelopment of antenna technology today, phased array antenna has shown its own advantage, and has e a mainstream in the satellite-borne antenna., microstrip antenna array is widely applied in C/X high frequency band. This paper tells about the principle, character and development trend of phased array antenna, analyzes the specialrequirement of astronautics phased array antenna, discusses the reliability chart and reliability predictionof astronautics phased array antenna,then proposes anintegrated design flow chartof determining performance and reliability by unit loss rate. The design scheme is approved byexperts. Crossed science is the way of science study today, it has more study value because of integrating many kinds of sciences. Then, puter emulational technology application, design the principle diagram, system emulation, circuit diagram emulation and optimizing of 上海交通大学工程硕士研究生学位论文 iv the microstrip 82 element array. Finally, 82 element array is tested and test results are got. The project pleted with a great achievement. It provides technology foundation of developing new Satellite-borne SAR broadband dualpolarization antenna array in the future. Key Words: astronautics phased array antenna wave scan T/R module reliability dualpolarization 上海交通大学学位论文原创性声明本人郑重声明所呈交的学位论文是本人在导师的指导下独立进行研究工作所取得的成果除文中已经注明引用的内容外本论