| 摘要 |
A mode-switching transformer having a first conductive line formed of two primary windings electrically in series, and the length of which is a function of a central operating frequency of the transformer; and a second conductive line formed of two secondary windings electrically in series, coupled two-by-two with the primary windings, the length of which is a function of said central frequency. The conductive lines exhibit different widths selected according to the desired impedance ratio of the transformer.
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