发明授权
US07777589B2 Balun transformer 有权
平衡不平衡变压器

Balun transformer
摘要:
A balun transformer includes a first conductive pattern having one end provided as an input/output port of an unbalanced signal, a second conductive pattern electromagnetically coupled to the first conductive pattern and having both ends provided as input/output ports of a balanced signal, and a first variable capacitor connected between a ground part and a middle part of an electrical length of the second conductive pattern.
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