Hi, I want to know the reason why the IDTs generate SAW with fundamental frequency of 92 MHz, but no odd harmonics being observed?

The  metallization ratio of IDTs is 0.33, the length of fingers is 1500 um, width of fingers is 6.5 um. The S21 parameters shows that SAW with fundamental frequency of 92 MHz was generated, but no...

05 December 2016 6,175 4 View