介绍专门用于ITS(智能交通系统)中的一种交通信息检测无线网络的设计。针对ITS应用中主要特点和要求,叙述该网络采取的关键技术措施——微带天线展宽技术等,并给出相应的实现方法。该网络克服以往的车辆检测器的局限性,使用极其方便,实验结果表明该网络工作十分准确。 Introduces a traffic information detection wireless network designed specifically for use in ITS (Intelligent Transportation Systems). According to the main features and requirements of ITS application, the paper describes the key technical measures taken by the network - the microstrip antenna broadening technology, and gives the corresponding methods. The network to overcome the limitations of the previous vehicle detector, the use of extremely convenient, the experimental results show that the network is very accurate.