| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric filter by which binding power of combined conductors is enhanced and the entire structure is miniaturized. SOLUTION: The dielectric filter is formed by interposing a pair of strip lines in the interior of a layered product formed by laminating a plurality of dielectric layers and by interposing a ground electrode on both the main surface sides and one end of the layered product. The pair of strip lines are formed of a main transmission line 1 and a sub transmission line 2 intervened between the different dielectric layers and via hole conductors buried in the dielectric layers between both the transmission lines and electrically connecting both the transmission lines. A first combined conductor 8a and a second combined conductor 8b electrically connected to each via hole conductor 3 are intervened between the dielectric layers located between the main transmission line and the sub transmission line. Capacitive coupling is applied to the pair of strip lines through the two combined conductors. COPYRIGHT: (C)2004,JPO
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