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Efficient Design Procedures for Wideband, Low-profile Antennas Using Altair FEKO Electromagnetic Simulation Technology
技术
- 网络与连接 - 5G
- 机器人 - 自动导引车 (AGV)
适用行业
- 汽车
- 电网
适用功能
- 产品研发
用例
- 车辆性能监测
- 虚拟现实
挑战
科罗拉多大学博尔德分校的天线研究小组 (ARG) 的任务是评估车辆底部,作为安装高频 VHF 天线系统的更传统天线放置位置的替代方案。面临的挑战是开发一种程序来评估军用车辆底部放置 HF-VHF 天线的可行性。许多军用和商用车辆平台的各种应用通常需要薄型隐藏式天线。然而,这些高天线增加了车辆的垂直间隙并构成易于识别的视觉特征,这是不期望的。车辆底部可以被认为是一个可行的隐藏替代场所,因为它提供了足够的空间来避免天线极端小型化。面临的挑战是评估和比较不同车辆位置的天线的传播损耗。
关于客户
科罗拉多大学博尔德分校的天线研究小组 (ARG) 是一个领先的研究中心,位于电气、计算机和能源工程系。 ARG致力于天线理论和设计的研究,重点是电子小型天线、同步发射和接收技术以及用于电子攻击、电子支持和通信的宽带微波和毫米波天线的应用。在 Dejan Filipovic 博士的指导下,ARG 团队设计并交付了许多工作频率低至 2 MHz 和高至 220 THz 的宽带和窄带天线系统。科罗拉多大学博尔德分校的 ARG 致力于天线研究和设计已有 15 年的历史。研究组现有博士后研究员8人,博士生14人,本科生研究生2人,研究管理人员2人。迄今为止,该小组已发表超过 225 篇经过同行评审的期刊出版物、会议论文、短期课程和教程。
解决方案
解决方案是应用 FEKO 电磁场仿真方法来评估底部放置天线的性能。数值研究是用车辆模型进行的。假设全金属结构是完美的电导体,而天线源近似为放置在距离车辆表面 0.05 m 处的顶部和底部位置的赫兹电偶极子。 FEKO 通过代码中实现的索末菲积分来计算接地损耗。考虑了三种类型的地面,包括干沙、沥青和湿土。 ARG 项目团队严重依赖 FEKO 结果来验证其传播损耗计算的分析程序,然后使用开发的 FEKO 模型准确确定各种天线/平台系统的影响范围。从全向性、效率和传播损耗方面评估了不同位置的车载天线的性能。
运营影响
数量效益
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