Title :
Computer-aided analysis and design of a planar multilayer Marchand balun
Author :
Schwindt, Randal ; Nguyen, Cam
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
7/1/1994 12:00:00 AM
Abstract :
Analytical expressions for the scattering (S) parameters for a planar multilayer Marchand balun, constructed of broadside-coupled microstriplines, are derived for the first time, based on the coupled-line quasi-TEM normal mode parameters. New design equations and a new design procedure for the balun based on the derived S-parameters and a circuit synthesis technique are presented. Calculated results for a GaAs microwave monolithic integrated circuit balun designed by this procedure are compared to a general full-wave planar analysis, and good performance and agreement are obtained
Keywords :
MMIC; S-parameters; circuit CAD; circuit analysis computing; distributed parameter networks; gallium arsenide; impedance matching; linear network analysis; linear network synthesis; microstrip components; CAA; CAD; GaAs; MMIC balun; S-parameters; broadside-coupled microstriplines; circuit synthesis technique; computer-aided analysis; computer-aided design; coupled-line quasi-TEM normal mode parameters; microwave monolithic integrated circuit; planar multilayer Marchand balun; scattering parameters; Circuit synthesis; Computer aided analysis; Coupling circuits; Equations; Gallium arsenide; Impedance matching; Microstrip; Monolithic integrated circuits; Nonhomogeneous media; Scattering parameters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
