V.I. Anisimkin - Dr.Sc. (Phys.-Math.), Chief Research Scientist, Kotel-nikov Institute of Radioengineering and Electronics RAS (Moscow). E-mail: anis@cplire.ru N.V. Voronova - Head of the Photomasks Laboratory, Acoustoelectronic & Piezokeramic «ELPA» Corporation. E-mail: vonavl@mail.ru М.А. Zemlyanitsin - Leading Engineer, Kotel-nikov Institute of Radioengineering and Electronics RAS (Moscow) Yu.V. Pushkov - Engineer, Acoustoelectronic & Piezokeramic «ELPA» Corporation I.I. Pyataikin - Ph.D. (Phys.-Math.), Senior Research Scientist, Kotel-nikov Institute of Radioengineering and Electronics RAS (Moscow)