DESIGN OF INTEGRATED COMPENSATED BALUNS

Rigorous analytical design equations for general integrated compensate d baluns (Marchand baluns) have been derived based on the mode paramet ers of the associated coupled strip sections. It is shown that a third -order balun is realizable with the use of two equal sections of coupl ed lines. Example components using planar as well as multilayer MMIC t echnology have been designed with the method presented here. Simulated results obtained by approximate TEM analysis as well as those generat ed with a 2.5D EM full-wave simulator show good broadband performance. (C) 1997 John Wiley & Sons, Inc.