| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency transformer capable of ensuring matching and balancing characteristic of balun transformers, in a low-cost constitution without using costly coaxial cables. SOLUTION: In a high-frequency transformer, in which a balun transformer composed of a coaxial cable 3A (3B) is used to perform a push-pull operation, a single line 6 having an impedance equivalent to the impedance between an outer conductor of the coaxial cable 3A (3B) and the ground is provided between a core wire of the coaxial cable 3A (3B) and the ground.
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