无线基站的GPS端口防雷接地研究

摘要

It is often found in wireless base stations that GPS port is damaged by lighting surge due to its improper grounding. A new approach is proposed in this paper to ground the GPS cable only at Surge Protector Device and keep isolation to ground for al the other part, which is different from the widely used 3 points grounding solution. Detail grounding schemes are also provided for different application scenarios.%在无线基站的实际应用中经常会发现有基站的GPS端口接地不当被雷电浪涌击穿打坏的案例。在本文中提出一种方法区别于GPS馈线三点接地保护方案：采用了在防雷器处单点接地，馈线其他部分与地绝缘。并给出了不同场景下基站GPS端口的防雷接地方案。