The Design Of An Amplifier Of DVB_T Digital Television Transmitter

In the dissertation, the design of an amplifier of DVB_T digital television transmitter is described and design scheme of every module is presented in detail. It mainly focuses on the analysis of the design of pre-amplifier module and final amplifier module.The method of small signal design is presented, which can be applied to the design of A AB amplifier. With the method 100W pre-amplifier module and 270W final amplifier module are designed successfully with devices of MRF 373 and BLF861. Designing with the RF simulation tools helps to greatly reduce the developing circles and costs. The pre-amplifier and final amplifier are applied to digital television transmitter, which will accelerate indigenization of digital television transmitter.