彩色电视机用有源天线分配器的设计

Design for Active Antenna Splitter of Color TV

随着数字信号技术的不断发展,数字电视成为未来电视的主流,但在模/数转换相当长时间内,会存在模数信号共存的情况,有源天线分配器根据消费者的使用情况对两种信号起转换作用。同时有源天线分配器的信号平坦度、隔离特性对信号传输有很大影响。通过分析该分配器的产品结构和工作原理,介绍了其设计目标、设计方法、测试结果及对多功能彩色电视机的影响。

According to the development of digital signal technique, digital TV become the main stream in future, but in long time for analog signal converting to digital signal, these two kinds of signal will coexist, active antenna splitter make a conversion effect for these two kinds of signal according to the customer＇s use situation. At the same time, the signal smoothness degree and isolation speciality of active antenna splitter make a great effect for signal transmission. Through analyzing the product structure and working principle of this splitter, introduces the design target, design method, testing result and the effect for multifunctional color TV.