| 摘要 |
The filter for providing an RF(Radio Frequency) band filter by using distribution capacity of a dielectric substrate as a capacitor(C) and a hidden line as an inductor(L), includes an auxiliary substrate implementing coupling points for a ground, the 1st distributed parameter device located vertically on the auxiliary substrate to implement a desired impedance and a high Q and a fixed C for the filter, the 2nd distributed parameter device located horizontally on the auxiliary substrate, an inductor linked to the 2nd device to improve the inner Q, a shield linked to the 1st device to separate an input/output to adjust the final inductance.
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