General multiple LC prototype filter solutions and optimization

New possibilities of optimization of LC filter prototypes are presented in this paper. This optimization of LC filter prototypes is also useful for design of ARC and SC filters. The contribution describes various filter design procedures, which enables us to generate multiple filter solutions by means a traditional synthesis method. In comparison to other published methods, the presented procedures offer wider possibilities of multiple filter solutions using easy methods. A sensitivity comparison of generated multiple solutions is also shown. Some possibilities of filter element spread minimization as well as the filter tolerance design optimization are briefly documented in some examples of low-pass filter prototypes.