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首页> 外文会议>2002 Antenna Applications Symposium Sep 18-20, 2002 Monticello, Illinois >Simulation of Vehicle Antennas by the Multilevel Fast Multipole Algorithm
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Simulation of Vehicle Antennas by the Multilevel Fast Multipole Algorithm

机译：车载天线多级快速多极算法的仿真

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摘要

As mobile communication, satellite navigation and broadcast services become prevalent, antenna systems are increasingly important for vehicle design. In order to maintain the shape of a vehicle, antennas are often placed in a complex environment, such as under a sunroof or on a non-ideal ground plane. Therefore, the radiation patterns highly depend on antenna location and surrounding scatterers. With numerical simulation, we can easily explore different design factors of prototype antennas. Although the multilevel fast multipole algorithm (MLFMA) has been applied to solve for radiation from vehicle antennas, available examples only involve simple monopoles. In this paper, we make MLFMA practical for solving complex antenna systems by enhancing it with the basis normalization (BN) and the self-interaction box inclusion (SBI) preconditioners. The above preconditioners significantly reduce the time for solving an ill-condition problem due to disparate mesh sizes and strong current interaction at the vicinity of antenna feeds. Simulation results are validated by measurements done in an anechoic chamber.
机译：随着移动通信，卫星导航和广播服务的普及，天线系统对于车辆设计越来越重要。为了保持车辆的形状，通常将天线放置在复杂的环境中，例如在天窗下或非理想的地面上。因此，辐射方向图高度取决于天线位置和周围的散射体。通过数值模拟，我们可以轻松探索原型天线的不同设计因素。尽管多级快速多极算法（MLFMA）已用于解决车辆天线的辐射，但可用示例仅涉及简单的单极子。在本文中，我们通过使用基础归一化（BN）和自交互框包含（SBI）前置条件增强功能来使MLFMA实用于解决复杂的天线系统。由于天线尺寸不同以及天线馈线附近的强电流相互作用，上述预处理器大大减少了解决疾病问题的时间。通过在消声室中进行的测量来验证仿真结果。

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