| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface acoustic wave filter which suppresses cost of manufacture.SOLUTION: In a surface acoustic wave filter 1, one of a first surface acoustic wave element and a second surface acoustic wave element is selected and mounted on a base substrate 11. On one side of the base substrate, an input terminal 12, an output terminal 13 and a ground terminal 14 which are electrically connected to an input electrode, an output electrode and a ground electrode are provided at positions which are mutually common for a surface acoustic wave device with which the first surface acoustic wave element is mounted and a surface acoustic wave device with which the second surface acoustic wave element is mounted. On the other side of the base substrate, a plurality of connection pads 17 which are electrically connected to any one of the input terminal, the output terminal and the ground terminal are provided at positions corresponding to the input electrodes, the output electrodes and the ground electrodes of the first surface acoustic wave element and the second surface acoustic wave element.SELECTED DRAWING: Figure 1 |
