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在无线多地址移动通信中迫切要求功率放大器能高效率放大信号,以节省电源实现移动电台轻量化,小型化;能无失真的线性放大信号以满足传递语言、图象及数据等多种信息的要求;有足够宽的通频带以满足多址通信及频分多路对带宽的要求。BD类功率放大器具有高效率和失真度小的优点。如在BD类放大器输入输出电路中采用宽带传输变压器,则能实现宽带放大。这些特点对缩小电台体积、减轻电台重量、提高工作稳定性有很大实用价值。
In wireless multi-address mobile communication, it is urgently required that the power amplifier can amplify the signal with high efficiency so as to save the power and realize the weight reduction and miniaturization of the mobile station. The linearly amplified signal without distortion can meet the requirements of transmitting various information such as language, image and data Requirements; Wide enough passband to meet multiple access and frequency division multiplexing bandwidth requirements. BD class power amplifier with high efficiency and distortion of the advantages of small. Such as BD amplifier input and output circuits using broadband transmission transformer, you can achieve broadband amplification. These characteristics have great practical value to reduce the radio station’s volume, reduce the radio station’s weight and improve the working stability.