A 53-µA-Quiescent 400-mA Load Demultiplexer Based CMOS Multi,Feature Mode Decomposition: New Decomposition Theory for,Wideband and Channel Switchable Mode Division Multiplexing,Optimal Design of Formulas for a Single Degree of Freedom,A 53-µA-Quiescent 400-mA Load Demultiplexer Based CMOS Multi