| 摘要 |
PURPOSE:To improve the symmetry of electromagnetic coupling of two input and output center conductors in the inside of a ferrite and the electric performance, by overlapping input parallel two wires on upper and lower parts of output parallel two wires with insulation. CONSTITUTION:One center conductor 1'a of an input parallel two-wire is overlapped on both center conductors of an output parallel two-wire and the other 1'b is overlapped under the output parallel two-wire. A thin sheet insulating member 10 insulates the center conductors 1', 2' at the center. Through the constitution like this, the symmetry of the coupling of the two center conductors to a ferrite disc is improved, allowing to improve the band width by 5% and the insertion by 1.2 dB in the electric performance. |
