车载卫星通信和弹载探测系统的锥状波束天线方向图综合的研究

Conical beam antennas are widely adopted in vehicle-borne satellite communication and missile-borne detection systems. There are still many challenging problems in pattern synthsis on the conical beam antennas. In this proposal, research on pattern synthesis using element-level pattern diversity, common aperture conical and pencil beam switchable antenna, collinear high port isolation circular polarized conical beam antenna, sum-difference conical multiple-beam antenna and simultaneous conical multiple-beam antenna will be conducted. Breakthrough in key technologies will be achieved including flexible control of side lobe level, gain and beam-pointing angle of the conical beam antenna pattern, simple compact feeding network, design of circular polarized high gain collinear array, implementation methods and beam control methods of sum-difference, simultaneous, switchable conical multiple-beam antennas. Finally, feasible solutions on the above conical beam antennas will be given.Preliminary research has been conducted to demonstrate the feasibility of the proposal. In terms of foundational and universal property, the prospective achievements from this research would be of great significance both in theory and in engineering applications.

锥状波束天线在车载卫星通信、弹载探测系统等诸多民用和军用领域有着广泛的应用。目前针对锥状波束天线方向图的综合方法还有待完善，仍然面临许多挑战性的问题。本项申请拟开展基于阵元级方向图分集技术的锥状波束天线阵列综合方法研究、锥状波束/笔状波束共孔径可切换天线研究、共线高隔离度圆极化锥状波束天线研究、和差锥状多波束天线研究以及同时/开关锥状多波束天线研究，突破锥状波束天线方向图副瓣、增益和波束指向角灵活控制、馈电结构简单紧凑、圆极化高增益共线阵的设计、和差及同时/开关锥状多波束具体实现方法和波束控制方法等关键技术，形成各锥状波束天线可行方案。这些研究内容已在项目申请的预先研究中进行过初步方案论证，其可行性得到了确认。由于研究内容的基础性和通用性，研究成果具有理论意义和工程实用价值。

锥状波束天线在车载卫星通信、弹载探测系统等诸多民用和军用领域有着广泛的应用。目前针对锥状波束天线方向图的综合方法还有待完善，仍然面临许多挑战性的问题。本项申请开展了基于阵元级方向图分集技术的锥状波束天线阵列综合方法研究、锥状波束/笔状波束共孔径可切换天线研究、共线锥状波束天线阵研究、和差锥状多波束天线研究、同时/开关锥状多波束天线研究及固定频率锥状波束扫描方法和双波束频扫（二维锥状波束）研究，发展了基于水的可重构锥状波束天线实现新机制，探索了锥状波束透射阵和反射阵的理论分析方法和优化设计方法，突破了锥状波束天线方向图副瓣、增益和波束指向角灵活控制、波束可重构设计、馈电结构简单紧凑、共线阵的设计、和差及同时/开关锥状多波束具体实现方法和波束控制方法等关键技术，形成了各锥状波束天线可行方案。由于研究内容的基础性和通用性，研究成果具有理论意义和工程实用价值。项目累计发表SCI收录期刊论文8篇，EI收录国际会议论文1篇，微波学报特邀综述性论文1篇。申请发明专利4项，授权发明专利3项。培养博士研究生3名，硕士研究生3名。