| 摘要 |
A multi-layer LC resonance balun includes at least a section of broadside coupled lines connected to an input port and two balanced output ports through transmission lines. Each section of coupled lines has two coupled lines. The first embodiment has at least two sections of coupled lines connected to a transmission line and coupled in parallel with at least one capacitor. The coupled lines are connected to an input port and two balanced output ports. The second embodiment has at least a section of coupled lines coupled in parallel with capacitors and then connected to an input port and two balanced output ports through transmission lines. By means of a multiple layer dielectric structure and meandered coupled lines, the size of the blaun is decreased and the frequency bandwidth is increased.
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