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

Volume

47

Issue

9

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1873

Lastpage

1882

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.788525

Filename

788525