Compact quasi-lumped hybrid coupler tunable over large frequency band
作者： F. Ferrero , C. Luxey , R. Staraj , G. Jacquemod , V.F. Fusco
DOI: 10.1049/EL:20072195
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摘要: The design of a tunable hybrid coupler is presented. structure composed two cascaded active quasi-lumped couplers. Over 460% bandwidth achieved using varactor diode tuning. This circuit, which operates from 1.5 to 7 GHz, consumes virtually no DC power and its size reduced by ratio five when compared that classical branchline coupler.
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sci-hub.se 参考文章(6)
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