Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Haruki Kyoya"'
Publikováno v:
2022 IEEE International Ultrasonics Symposium (IUS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88201ef8495f498f683eb5ca28e09025
https://doi.org/10.1109/ius54386.2022.9957219
https://doi.org/10.1109/ius54386.2022.9957219
Autor:
Ryo Nakagawa, Hiroshi Shimizu, Takanao Suzuki, Ken-ya Hashimoto, Haruki Kyoya, Masahiro Gawasawa, Tatsuya Omori
Publikováno v:
2022 IEEE MTT-S International Conference on Microwave Acoustics and Mechanics (IC-MAM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::797456447f7a202a30c48d549a014b17
https://doi.org/10.1109/ic-mam55200.2022.9855207
https://doi.org/10.1109/ic-mam55200.2022.9855207
Autor:
Yuichi Takamine, Masahiro Hiramoto, Masayoshi Koshino, Takanori Toi, Toshiyuki Fuyutsume, Hisashi Yamazaki, Hideki Iwamoto, Haruki Kyoya, Norio Nakajima, Tsutomu Takai, Takeshi Nakao, Hajime Kando
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 64:1382-1389
To develop the high-performance filters and duplexers required for recent long-term evolution frequency bands in mobile handsets, a surface acoustic wave (SAW) resonator is needed that has a higher quality (Q) and a lower temperature coefficient of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aad2e50338a4b5a3f5b702b1ae80d19a
https://doi.org/10.1109/tuffc.2017.2738119
https://doi.org/10.1109/tuffc.2017.2738119
Autor:
Masakazu Mimura, Haruki Kyoya, Yutaka Kishimoto, Masashi Omura, Hiromu Okunaga, Ken-ya Hashimoto, Tetsuya Kimura
Publikováno v:
2019 IEEE International Ultrasonics Symposium (IUS).
Although it was considered to be impractical to apply surface acoustic wave (SAW) filters in the super high frequency (SHF) range, a technology recently revealed that use of a thin piezoelectric crystal plate may recreate an impression of the past. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c0427c3d19a214a345b2fbfc299b7f0
https://doi.org/10.1109/ultsym.2019.8926065
https://doi.org/10.1109/ultsym.2019.8926065
Autor:
Tsutomu, Takai, Hideki, Iwamoto, Yuichi, Takamine, Hisashi, Yamazaki, Toshiyuki, Fuyutsume, Haruki, Kyoya, Takeshi, Nakao, Hajime, Kando, Masahiro, Hiramoto, Takanori, Toi, Masayoshi, Koshino, Norio, Nakajima
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 64(9)
To develop the high-performance filters and duplexers required for recent long-term evolution frequency bands in mobile handsets, a surface acoustic wave (SAW) resonator is needed that has a higher quality (Q) and a lower temperature coefficient of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::7140a8d4ed7f6b595fc305d54fbdca71
https://pubmed.ncbi.nlm.nih.gov/28809680
https://pubmed.ncbi.nlm.nih.gov/28809680
Publikováno v:
2016 IEEE International Ultrasonics Symposium (IUS).
In this paper, we investigate influence of the electrode on the third-order nonlinearity of SAW devices. First, some one-port resonators are fabricated on 42°YX-LiTaO 3 substrates with different electrode material or electrode crystallinity, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9a56dbe3e18d0b6e0225a52df648194
https://doi.org/10.1109/ultsym.2016.7728383
https://doi.org/10.1109/ultsym.2016.7728383
Autor:
Norio Nakajima, Takanori Toi, Haruki Kyoya, Masahiro Hiramoto, Tsutomu Takai, Masayoshi Koshino, Hideki Iwamoto, Yuichi Takamine, Toshiyuki Fuyutsume, Takeshi Nakao, Hajime Kando, Hisashi Yamazaki
Publikováno v:
2016 IEEE International Ultrasonics Symposium (IUS).
High Q and low TCF are elemental characteristics for SAW resonator, in order to realize high performance filters and duplexers coping with new LTE frequency bands. Authors focus on the acoustic energy confinement in SAW propagation surface and electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbd9970c38a23f666bf231095c5cfbcf
https://doi.org/10.1109/ultsym.2016.7728455
https://doi.org/10.1109/ultsym.2016.7728455
Publikováno v:
2015 IEEE International Ultrasonics Symposium (IUS).
In this paper, generation mechanisms of third-order nonlinearity in surface acoustic wave (SAW) devices are discussed. For this discussion, a simulation technique, in which all conceivable generation mechanisms are taken into account, is proposed. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9addbc0879f6eb016710b5b57ad83a48
https://doi.org/10.1109/ultsym.2015.0054
https://doi.org/10.1109/ultsym.2015.0054
Publikováno v:
2014 IEEE International Ultrasonics Symposium.
Linearity performances are getting one of the most important characteristics of surface acoustic wave (SAW) duplexers because nonlinear signals generated in RF front-end of cellar phone handsets deteriorate the receiver sensitivities significantly. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c62ae9e7a03de74675e80cc33c0f5c5b
https://doi.org/10.1109/ultsym.2014.0192
https://doi.org/10.1109/ultsym.2014.0192
Autor:
Takanao Suzuki, Ken-ya Hashimoto, Ryo Nakagawa, Hiroshi Shimizu, Katsuhiro Nako, Haruki Kyoya
Publikováno v:
Japanese Journal of Applied Physics. 55:07KD02
In this paper, we discuss the generation mechanisms of third-order nonlinearity in surface acoustic wave (SAW) devices on the basis of simulation results, which are obtained by a proposed method for this discussion. First, eight nonlinear terms are i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69f7c689cb67ec07ccb0dc58fb2d4ca2
https://doi.org/10.7567/jjap.55.07kd02
https://doi.org/10.7567/jjap.55.07kd02