Do we need to consider the frequency of voltage applied through input IDTs while designing SAW sensors or in any calculations? or we just need to consider the frequency of piezoelectric layer?
Thanks,
Short answer: Yes. It'll depend why you're designing the sensor. Delay line in the device is also used as Bandgap filter. If you want a specific frequency wave, then you need to make sure your input voltage frequency is very close to the design frequency. Else the attenuation might be a lot. I can send you the reference for this if you're interested.
Thank you very much for your helpful answer Vimal. It would be great if you can send me references also. Thanks,
http://www.amazon.com/Surface-Acoustic-Devices-Supriyo-Datta/dp/0138779112
I couldn't find but if anyone knows papers etc. about this subject, can send me please?
This might be helpful:
https://books.google.com.hk/books?hl=en&lr=&id=0oPSBwAAQBAJ&oi=fnd&pg=PR9&dq=EMATS+FOR+SCIENCE+AND+INDUSTRY&ots=Rp2Jif7q3A&sig=nnCEkrJct-UTNwYAhM1QMHcpk_A&redir_esc=y#v=onepage&q&f=false
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