Narrow-band matching networks for quasi-TEM coupled microstrip lines

Author

Nickel, Josh G. ; Hampson, Mark D. ; Chung, Ho-Young R. ; Schutt-Ainé, Joé E.

Author_Institution

Center for Computational Electromagn., Illinois Univ., Urbana, IL, USA

Volume

50

Issue

5

fYear

2002

fDate

5/1/2002 12:00:00 AM

Firstpage

1392

Lastpage

1399

Abstract

For coupled-line systems, "matching" involves entire impedance matrix networks and necessarily involves multiple propagating modes. This paper presents the synthesis of several matching strategies for symmetric coupled-line microstrip structures mismatched with several types of simple passive terminations. Detailed multiconductor transmission-line analysis provides the basis for procedures to optimize the parameters of several matching networks (stubs, reactances, transformers) that yield significant line and mode reflection reduction resulting from the mismatches. Measurement of synthesized structures verifies the reflection reduction and power savings

Keywords

coupled transmission lines; distributed parameter networks; impedance matching; microstrip lines; multiconductor transmission lines; transmission line theory; coupled-line systems; matching strategies; mismatches; mode reflection reduction; multiconductor transmission-line analysis; narrow-band matching networks; passive terminations; power savings; quasi-TEM coupled microstrip lines; reactances; stubs; symmetric coupled-line microstrip structures; transformers; Couplings; Impedance; Microstrip; Narrowband; Network synthesis; Reflection; Symmetric matrices; Transformers; Transmission line matrix methods; Transmission lines;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.999154

Filename

999154