A novel topology for the implementation of active distributed multiplexers

In this paper a novel topology for implementing of active multiplexers and demultiplexers is introduced. This new method is devised based on distributed amplifiers and has unique specifications such as providing possibility of determining gains separately, easy to integrate with other RF devices and small size. In this paper after brief reviewing of distributed amplifiers, we will introduce the proposed topology and its characteristics. To show flexibility of this topology for designing, we will design and optimize a triplexer with unequal input frequency ranges based on the new topology. The optimization method used here is hybrid of conjugate gradient (GC) and genetic algorithm (GA). The result of optimization is confirmed by simulation.