| 摘要 |
PURPOSE: A package structure of a SAW(Surface Acoustic Wave) filter is provided to prevent the interference due to coupling phenomena by bending one end of each of input and output IDTs(InterDigital Transducers). CONSTITUTION: Electronic devices are mounted within a package(50). A plurality of connecting terminals(51) electrically connects the electronic devices mounted within the package(50) to the external. A piezoelectric substrate(61) and input and output IDTs(62,63) are provided within the package(50). The input and output IDTs(62,63) are provided with comb-shaped input and output finger units(62a,63a) and input and output signal bus bars(62b,63b). The input and output signal bus bars(62b,63b) are formed in parallel with a signal transmission direction with respect to ends of the input and output finger units(62a,63a). One end of each of the input and output signal bus bars(62b,63b) is bent. |
