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The Journal of The Korea Institute of Intelligent Transport Systems Vol.6 No.2 pp.107-112
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Stubbed Branch-Line Compact Balun
Abstract
A new impedance transforming balun scheme is presented based on the branch-line structure with stubs on the vertical branches. The stubbed vertical branch eliminates the unwanted even mode output and provides only the balanced output of the balun with opposite phase. Also, the use of stubs reduces the branch lengths by two times the stub length, which is useful for the compact balun design.
