一种高性能宽带CATV干线放大器设计

摘要

为了满足有线电视传输系统的应用要求,提出了一种具有手动增益控制和手动斜率控制功能的高性能宽带CATV干线放大器的设计方法.在48～860 MHz频段范围内,放大器的最大均衡量达到26 dB,在均衡量为0 dB时,放大器增益大于31 dB.放大器优良的非线性指标,也进一步提升了系统的性能.%To meet the applicational demand of CATV transmission system, a design approach of high-performance wideband CATV artery amplifier with the function of manual gain and slope control is proposed. Within the frequency range of 48~860 MHz, the maximum equilibrium quantity of the amplifier reaches 26 dB. The gain of the amplifier is also greater than 31 dB at 0 dB equilibrium quantity. Meanwhile, the excellent nolinear index also promotes system performance.