Reconfigurable Microwave Components Based on Optimization of Field Programmable Microwave Substrate
This article presents novel designs of reconfigurable microwave components such as power divider, isolator, and tunable notch based on the concept of field programmable microwave substrate (FPMS). Power divider designs with even and balanced power distributions are presented. A real-time optimization method has been used in order to realize desired functionality from the FPMS. The optimization method uses a genetic algorithm developed in MATLAB specifically for the FPMS. This genetic algorithm changes the bias voltages of varactors embedded in the FPMS unit cells according to the required S-parameter specifications. The optimization method uses measured S-parameters to obtain the most accurate results, obviating the need for simulations based on an equivalent model of FPMS.