| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive splitter filter circuit having no equalizer, reducing the number of parts and satisfying the standard of attenuation characteristics and the standard of return loss characteristics. SOLUTION: The splitter filter circuit comprises coils La and Lb making a lance winding structure, coils Lc and Ld making a transformer structure, and two capacitors Ca and Cb. Each element is connected in the form of a ladder in order of the coils La and Lb, the capacitor Ca, the coils Lc and Ld and the capacitor Cb from a phone circuit side. In the splitter filter circuit, the values of each element are in the following ranges: 12.61 mH≤La≤13.39 mH, 12.61 mH≤Lb≤13.39 mH, 87.3 nF≤Ca≤92.7 nF, 10.185 mH≤Lc≤10.815 mH, 10.185 mH≤Ld≤10.815 mH, 65.96 nF≤Cb≤70.04 nF. COPYRIGHT: (C)2003,JPO
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