| 摘要 |
PROBLEM TO BE SOLVED: To provide a bandpass filter whose whole area comprising a peripheral circuit can be reduced. SOLUTION: The bandpass filter is provided with a first substrate 10 where a first microstrip conductor 11 is formed, a second substrate 20 where a second microstrip conductor 21 is formed and a shielding case 18 which is fitted onto the first substrate 10 and covers the first microstrip conductor 11. The second substrate 20 is fitted to an inner face of a top plate part 18a in a state where the second microstrip conductor 21 faces the first substrate 10 and it is not overlapped with the first microstrip conductor 11 in a vertical direction, and the first microstrip conductor 11 is coupled with the second microstrip conductor 21. COPYRIGHT: (C)2004,JPO
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