Title :
Quasi-ideal multilayer two- and three-strip directional couplers for monolithic and hybrid MICs
Author :
Sachse, Krzysztof ; Sawicki, Andrzej
Author_Institution :
Dept. of Electron., Wroclaw Univ. of Technol., Poland
fDate :
9/1/1999 12:00:00 AM
Abstract :
In this paper, the properties of multilayer two- and three-strip asymmetric coupled lines are described using their coupled-mode parameters. Examples of quasi-ideal, microstrip, and coplanar directional couplers designed in monolithic and hybrid microwave integrated-circuit technology, consisting of various layered structures of bilevel and trilevel coupled lines, are presented together with experimental results for two 3-dB couplers on ceramic-filled polytetrafluoroethylene and polyimide laminates
Keywords :
MMIC; coplanar transmission lines; coupled mode analysis; directional couplers; hybrid integrated circuits; microstrip directional couplers; microwave integrated circuits; bilevel coupled lines; ceramic-filled polyimide laminates; ceramic-filled polytetrafluoroethylene laminates; coplanar directional couplers; coupled-mode parameters; hybrid microwave integrated-circuit technology; layered structures; microstrip directional couplers; monolithic microwave integrated-circuit technology; multilayer asymmetric coupled lines; quasi-ideal multilayer three-strip directional couplers; quasi-ideal multilayer two-strip directional couplers; trilevel coupled lines; Coupling circuits; Directional couplers; Impedance; Integrated circuit technology; Microstrip; Microwave integrated circuits; Mutual coupling; Nonhomogeneous media; Polyimides; Strips;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
