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An effective and accurate method for the design of directional couplers

✍ Scribed by Qian Wang; Sailing He; Fangrong Chen

Book ID
114569613
Publisher
IEEE
Year
2002
Tongue
English
Weight
297 KB
Volume
8
Category
Article
ISSN
1077-260X

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In a coupled-line quarter-wave directional coupler consisting of inhomogeneous waveguides such as microstrip lines, directivity is degraded due to the difference in the phase velocity of the even and odd modes. In order to rectify this problem, various methods have been proposed. In the present pape