[2] HASHIMOTO K Y,OMORI T,YAMAGUCHI M.Operation mechanism of double-mode surface acoustic wave filters with pitch-modulated IDTs and reflectors[C]//Rotterdam:Proc IEEE Ultrason Symp,2005:2157-2161.
[3] PLESSKY V P,CHEN D P,HARTMANN C S.‘Patch’ improvements to COM model for leaky waves[C]//Cannes:Proc IEEE Ultrason Symp,1994:297-300.
[4] HONKANEN K,KOSKELA J,PLESSKY V P,et al. Parasitic BAW excitation in LSAW transducers[C]//Sendai:Proc IEEE Ultrason Symp,1998:949-952.