220511 ⎘
Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically parallel the balanced terminals being on opposite sides of the tracks
Duplexer and elastic wave device
#2Acoustic wave duplexer
#3Balance filter comprising two acoustic wave filters connected to a single ground terminal
#4Acoustic wave filter device utilizing filters having different acoustic wave propagation directions
#5Saw filter with improved selection or insulation
#6Surface acoustic wave device