TY - JOUR
T1 - Acoustic wave devices composed of periodically poled Z-cut LiTaO 3 plate using edge reflection
AU - Kadota, Michio
AU - Ogami, Takashi
AU - Yamamoto, Kansho
AU - Cho, Yasuo
PY - 2010/7
Y1 - 2010/7
N2 - The excitation method using the periodically poled (PP) structure has several merits suited for high-frequency devices in comparison with the excitation method using a conventional interdigital transducer (IDT). For example, a simple photolithography process, absence of short circuit caused by metallic powder, and a strong electric power durability can be expected. Although transducers using PP plates or PP films have been reported, none of the resonator-type devices using them has been. The authors attempted to fabricate PP resonators and resonator filters by applying an edge reflector to the fabrication of PP structure devices. As the result, a resonator having an impedance ratio of 33 dB and a resonator filter having an insertion loss of 2.6 dB and a relative 3 dB bandwidth of 2.2% were realized.
AB - The excitation method using the periodically poled (PP) structure has several merits suited for high-frequency devices in comparison with the excitation method using a conventional interdigital transducer (IDT). For example, a simple photolithography process, absence of short circuit caused by metallic powder, and a strong electric power durability can be expected. Although transducers using PP plates or PP films have been reported, none of the resonator-type devices using them has been. The authors attempted to fabricate PP resonators and resonator filters by applying an edge reflector to the fabrication of PP structure devices. As the result, a resonator having an impedance ratio of 33 dB and a resonator filter having an insertion loss of 2.6 dB and a relative 3 dB bandwidth of 2.2% were realized.
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U2 - 10.1143/JJAP.49.07HD22
DO - 10.1143/JJAP.49.07HD22
M3 - Article
AN - SCOPUS:77956566885
VL - 49
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 PART 2
M1 - 07HD22
ER -