| http://www.w3.org/ns/prov#value | - ositioned at the outermost ends of said input electrode and said output electrode and opposite to each other is set to a value represented by L=(0.5n+d)??, where 0.4???d???0.58, ?? is the wavelength of a surface acoustic wave, and n is an integer, and wherein the distance L between the electrode finger positioned at the outermost side of the electrode on the outermost out of said input electrodes
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