IME2019 5G材料论坛-成功设计毫米波雷达天线的考虑因素

随着自动驾驶汽车的发展，越来越多的车辆配备主动安全系统，77GHz汽车雷达传感器的应用呈现了快速发展，并在未来将保持持续快速增长的趋势。然而，在77GHz毫米波雷达传感器的现实设计中却存在着许多问题。这些问题常常被工程师们所忽略，但它们却会影响PCB雷达天线在毫米波频率下的RF性能。

本文中将聚焦用于雷达天线的PCB材料的几个关键性能，以便工程师能更好理解，并使实际设计电路与模型仿真的射频性能一致。此外，也将介绍结合在77GHz汽车雷达应用中的多年经验，罗杰斯公司新推出了的一款毫米波雷达天线PCB材料。

77 GHz automotive radar applications are growing as more vehicles are equipped with active safety systems and more focus is placed on developing autonomous vehicles. There are many things to consider when implementing PCB technology for 77 GHz automotive sensor applications. However, there are multiple real-world issues which can impact the RF performance of PCB’s at millimeter-wave frequencies and some of these issues are commonly unknown to the designer. This paper will focus on several critical topics which are key for the RF designer to understand in order to generate models and designs which will yield circuits with RF performance that are more closely matched to the models. Additionally, from many years of experience with 77 GHz automotive radar applications at Rogers Corporation, a new RF material was recently launched. The benefits of this material for mmWave applications will be explained.