DocumentCode
973586
Title
Method for improving microstrip coupler directivity
Author
Shibata, Kenji ; Yanagisawa, H. ; Torimura, Y. ; Hatori, Kenji
Author_Institution
Kitami Institute of Technology, Kitami, Japan
Volume
17
Issue
20
fYear
1981
Firstpage
732
Lastpage
733
Abstract
This letter describes a method for improving the directivity of the edge-coupled microstrip couplers; the coupler is made up of the suspended microstrip lines. The gap between the dielectric substrate and the ground plane is adjusted to get equal mode velocities under perfect matching conditions. Design data for optimum structure and experimental results are presented and discussed.
Keywords
directional couplers; strip line components; dielectric substrate; directional coupler; edge-coupled microstrip couplers; equal mode velocities; ground plane; microstrip coupler directivity; perfect matching conditions; suspended microstrip lines;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19810514
Filename
4245993
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