Multilayer piezoelectric filter with an air vent between two...
Multilayer type piezoelectric filter with intermediary...
Multimode surface acoustic wave filter with a coupling section n
Multiple co-surface acoustic wave filters
Multiple frequency acoustic reflector array and monolithic...
Multiple layer acoustical structures for thin-film resonator bas
Multiple pole bandpass filter having monolithic crystal elements
Multiple pole surface wave acoustic filters employing angled gro
Multiple resonant electromechanical filters using edge-mode vibr
Multiple-mode piezoelectric filter with acoustic and electromagn
Multiple-stage ladder type SAW filter having series resonators w
Multipole resonator