| 摘要 |
A balanced-unbalanced transformer includes: a balanced transmission line including paired transmission lines; an unbalanced transmission line; and two lead transmission lines connected to two neighboring end portions of four end portions of the paired transmission lines at a right angle to the paired transmission lines, wherein one of the two lead transmission lines has a first electrode face which faces the other of the two lead transmission lines, the other of the two lead transmission lines has a second electrode face which faces the one of the two lead transmission lines, and the first electrode face and the second electrode face are electrode faces of a capacitor.
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