A Proposed Design for the Broadband Microwave Distributed Amplifiers


Abstract:In this paper, a new method for the design of the broadband RF/microwave amplifiersemploying distributed amplification is presented. It proposes to use stages with asymmetriclumped elements (inductances and capacitances) in the gate and drain circuits of theamplifier instead of symmetric elements in order to control the frequency response and toachieve a flat gain over a large bandwidth. The need for impedance matching problems isalso solved. Simulation result obtained demonstrates that the new design gives betterfrequency response as compared to the conventional distributed amplifiers even withoutoptimization.