【摘要】 介绍一种１１ＧＨｚ频段多路电视微波传输系统．它包含中频调制器、微波上变频发射组件、低噪声下变频接收组件和中频解调器等部分．该系统采用宽带调频信号方式，运用高中频直接锁相调频、高Ｑ滤波、一体化上、下变频组件结构和微处理器多路集中控制等技术，设备体积小、成本低、性能好、并获得实际应用．更多还原

【Abstract】 An 11GHz-band multi-channel TVs microwave transmission system, composed of IF modulators, an up-converter transmitter module, a low-noise down-converter module and IF demodulators, is proposed in the paper. By using of technique of wide band FM, frequency synthesis, compact design and microprocessor control, the system possess advantages of high performance, small size and low cost and has been actually equipped in CATV microwave networking systems.更多还原