| 摘要: |
| 随着国内外商业通信卫星星座的大规模部署，应用于车辆搭载的小尺寸、低成本的地面终端天线的应用市场日益开阔。基于此，本文提出了一种可扩展片式天线的结构设计方案，该天线系统由有源多功能刚挠组件和安装散热结构件组成。采用的有源多功能刚绕组件由微波数字混合母板和供电控制子板组件通过柔性线路板互联，从而了实现射频信号的传输、合成和功率分配、供电和信号控制等功能。通过对承载构件、散热组件进行结构功能一体化集成设计，极大地减小了系统的空间体积和重量。基于高速公路卡车和组合轮式车两种运输条件下，对天线进行力学环境适应性设计和仿真分析，结果表明，该片式天线基频为182.38Hz，天线最大位移为0.05mm，最大应力为31.6MPa，满足上述两种抗力学环境设计要求。 |
| 关键词: 片式天线，结构设计，一体化集成设计，抗力学环境分析 |
| DOI： |
| 分类号:TN03 |
| 基金项目:安徽省重点研究与开发计划项目 |
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| Structural design of extensible Tile antenna and adaptability analysis of mechanical environment |
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孙远涛, 王小宇
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| Abstract: |
| With the large-scale deployment of commercial communication satellite constellations at home and abroad, the market demand of vehicle equipped for small-sized and low-cost ground terminal antennas is increasing. In this work, a design scheme for an extensible tile antenna is reported. The antenna system is composed of an active multifunction rigid-flexible component and installed & heat-dissipated structure parts. The active multifunction rigid-flexible component consists of a microwave-digital hybrid module and a power supply-control module, which are interconnected by a flexible PCB board. Hence, the aims of RF signal transmission, synthesis, power distribution, power supply and signal control are realized. By integrating the structural and functional design of load-bearing components and heat dissipation components，the space volume and weight of the antenna system are greatly reduced. Under the two transportation conditions of highway truck and combined wheeled vehicle, the adaptability of the antenna to mechanical environment is designed and simulated. The results show that, the fundamental frequency of the chip antenna is 182.38Hz, the maximum stress and the maximum deformation of the antenna are 0.05mm and 31.6MPa respectively, which meet the resistance environment design requirements. |
| Key words: a chip antenna, integrated design, analysis of resistance environment |