A Novel Approach Applied in the Optimization of the Switched Filter Bank's Gain Flatness

A novel approach applied in the optimization of the switched filter bank's gain flatness is introduced. The original, first and second optimizational design of switched filter bank is firstly presented, then, field-circuit co-simulation based on Computer Simulation Technology (CST) and Advanced Design System (ADS) is demonstrated. Finally, the measurement data are given, which are in excellent agreement with the simulation. The measured gain flatness of the first optimizational case is 0.11dB better than the original one. Simultaneously, the measured gain flatness of the second optimizational case is 1.13dB better than the original one. As a conclusion, a novel approach optimizing the switched filter bank's gain flatness with practical engineering values is presented, demonstrating the precise analysis of a switched filter bank.