C.A.D for broad-band multistage microwave transimpedance amplifier.

In high data rate optical-fiber, it is necessary to employ an ultra broad-band transimpedance amplifier. In this paper, we present a technique for the design of a transimpedance amplifiers. It can be applied as well to the design of interstage equalizers for microwave transimpedance amplifiers. In the version described in this paper, the optimisation process is applied to the transimpedance gain and noise which is adjusted. Based on the load charge matching technique, a sequential procedure to design multistage microwave transimpedance amplifiers is developed. The synthesis of network is carried out with lumped elements. Then we give an example of design of a two stage 3-7 GHz transimpedance amplifier with HEMT transistor