Abstract
Experimental studies have been made on the suppression of two major spurious responses, i.e., inharmonic overtones and the 6th thickness-shear-mode harmonic overtone, to realize a 3rd overtone thickness-extension double-mode bandpass filter using PbTiO3 ceramic substrates. Each leverage was found by investiging of low-symmetry electrode shapes and implementing the nonpolarized portion of the region between terminal pads on the piezoelectric substrate. The practical importance of the application of intermediate-frequency filters (IF filters) used in wireless communication systems depends on how the narrow frequency tolerance requirement is satisfied. A simple but accurate method of adjusting the center frequency of these filters is shown here.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
