Design of concurrent multi-band matching networks

A general technique for synthesis of concurrent multi-band matching networks is proposed. The proposed design technique can be adapted to any matching strategy (noise match or conjugate match using L-match, П-match or any other topology), for multiple frequencies. Detailed design procedures are outlined for dual-band and quad-band matching networks with the help of design examples. A prototype circuit board for a quad-band matching network has been realized with discrete components and laboratory measurement results are presented.