Surface acoustic wave filter

摘要

The present invention disclosed a SAW filter in which unnecessary space on a chip (11) can be reduced in comparison with the prior art, and in which a smaller chip can be realized. Because oblique step shaped reflection surfaces (14, 15, 54, 55, 64, 65) are provided in- order to reflect the SAW, a smaller SAW filter than that used in the prior art can be realized (Figure 1). <IMAGE>