Title :
Three-Line microstrip directional coupler with dielectric overlay
Author :
Shibata, K. ; Yanagisawa, H. ; Ishihata, Y.
Author_Institution :
Kitami Institute of Technology, Kitami, Japan
Abstract :
The letter illustrates that the frequency characteristics of a three-line microstrip directional coupler can be greatly improved by using the dielectric overlay. We show the method of analysis in detail. The examples of design data are shown with the graphs of frequency characteristics of the coupler
Keywords :
directional couplers; strip line components; waveguide theory; dielectric overlay; frequency characteristics; three-line microstrip directional coupler;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830622
