【作者】 陈伟；

【导师】 邱扬；

【作者基本信息】 西安电子科技大学 ， 机械制造及其自动化， 2002， 硕士

【摘要】 本文采用矩量法对车载多天线间的相互干扰特性进行了分析，将多天线系统等效为微波网络，然后采用矩量法求该网络的导纳矩阵Y，利用该导纳矩阵对天线间互耦特性进行分析，同时计算天线的近场分布。本文的重点放在模型的建立上，研究了计算机自动建立天线计算模型的算法，以达到快速、直观的建模。其中以实际车辆作为模型，并加以抽象和简化。此外，还编制了计算程序的软件界面，使建模成为可视化和交互式的工作，提高了效率。 本文采用的算例为实际工程中碰到的问题，其模型复杂，计算量大。算例中主要考虑发射天线的谐波干扰，计算天线间的最大耦合度和实际耦合度并给出了实际耦合度。经计算分析证明，该方法理论正确，计算精度较高，对车载天线的安装、配置有较强的指导意义。更多还原

【Abstract】 Moment method is used for the analysis of interference among the vehicular multiple antennae in this paper. The multiple antennae system is equivalent to a microwave network, then the admittance matrix of the network can be obtained. Using the admittance matrix, we can analyze the characteristic of coupling between two antennae and the near field of the antennae by the MOM. The module of the car is the key of this program, so the way of modeling automatically by a computer is studied for speediness and directness. A real car is used as the module with abstracting and simplifying. In addition, a software interface is designed for the computing program so that the modeling becomes visual and commutative.One of the engineering problems is presented with the complex modules and great efforts. Harmonic interference among antennae is emphasized and the level of the highest and real coupling is computed. We give the real coupling level. It is proved by analyzing that the method is exactitude in theory and precise in solution and can be used as a guidance of equipment and collocation of the vehicular multiple antennae.更多还原