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All Technical Committee Conferences  (Searched in: All Years)

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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 64  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EA, US
(Joint)
2023-12-22
13:00
Fukuoka   [Poster Presentation] Double mode type BAW filter based on ScAlN multilayers SMR using stacked electrodes
Saneyuki Shibata, Takahiko Yanagitani (Waseda Univ.) US2023-56
Surface acoustic wave (SAW) filters, which use surface acoustic waves, and bulk acoustic wave (BAW) filters, which use b... [more] US2023-56
pp.1-6
EA, US
(Joint)
2023-12-22
13:00
Fukuoka   [Poster Presentation] c-Axis tilted epitaxial ScAlN self-supporting thin film resonators with epitaxial ZnO sacrificial layer
Shiori Kobayashi, Takahiko Yanagitani (Waseda Univ.) US2023-59
Piezoelectric thin films with high shear mode electromechanical coupling coefficient k´352 are attractive to improve S/N... [more] US2023-59
pp.18-23
EA, US
(Joint)
2023-12-22
13:00
Fukuoka   [Poster Presentation] Fabrication of epitaxial piezoelectric layer/acoustic Bragg reflector structure by etching of epitaxial sacrificial layer
Satoshi Tokai, Takahiko Yanagitani (Waseda Univ.) US2023-60
Q factor and power durability are expected to be improve d by using s ingle crystalline piezoelectric thin films in BAW ... [more] US2023-60
pp.24-29
EA, US
(Joint)
2023-12-22
15:20
Fukuoka   [Poster Presentation] Electromechanical coupling coefficient hysteresis curve of free-standing PbTiO3 epitaxial thin film resonators
Sota Kuninobu, Takahiko Yanagitani (Waseda Univ.) US2023-62
 [more] US2023-62
pp.35-40
EA, US
(Joint)
2023-12-22
15:20
Fukuoka   [Poster Presentation] Detection of biomaterial interaction by ultrasonic reflectometry in the UHF range
Ayane Mogi, Takahiko Yanagitani (Waseda Univ.) US2023-63
QCM (quartz crystal microbalance) is extensively used for biomolecules sensing. However, it is not clear that whether t... [more] US2023-63
pp.41-46
EA, US
(Joint)
2023-12-22
15:20
Fukuoka   [Poster Presentation] SMR-type piezoelectric transformer using shear mode c-axis zigzag ScAlN multilayer
Kazutaka Siraiwa (Waseda Univ.), Takahiko Yanagitani (Waseda univ.) US2023-64
RF signal can be converted to DC signal using an antenna and diode (rectenna). When distance of wireless transfer is lon... [more] US2023-64
pp.47-52
EA, US
(Joint)
2023-12-22
15:20
Fukuoka   [Poster Presentation] Large area growth of c-axis tilted Sc0.4Al0.6N thin films using planar sputtering with rectangular cathode
Naoki Ishii, Yhoho Shimano, Takahiko Yanagitani (Waseda Univ.) US2023-65
c-axis normal ScAlN thin films with Sc concentration exceeding 40% possess high thickness extensional mode electromechan... [more] US2023-65
pp.53-58
US 2023-11-27
10:50
Shizuoka Shizuoka University High power characteristics of nitride multilayered piezoelectric thin films for RF filters
Saneyuki Shibata, Takahiko Yanagitani (Waseda Univ.) US2023-45
 [more] US2023-45
pp.11-16
US 2023-11-27
11:15
Shizuoka Shizuoka University High quasi-shear mode electromechanical coupling coefficients of c-axis tilted epitaxial PbTiO3 thin films
Sota Kuninobu, Takahiko Yanagitani (Waseda Univ.) US2023-46
 [more] US2023-46
pp.17-22
US 2023-11-27
16:10
Shizuoka Shizuoka University 30-layer polarization inversion HBAR for acoustic separation of piezoelectric layer and substrate
Kazutaka Shiraiwa, Takahiko Yanagitani (Waseda univ) US2023-54
There are two types of BAW resonators, FBAR (film bulk acoustic resonator: free standing structure) and SMR (Solidly mou... [more] US2023-54
pp.61-66
US 2023-11-27
16:35
Shizuoka Shizuoka University SMR based on epitaxial ScAlN piezoelectric thin films/epitaxial acoustic Bragg reflector
Satoshi Tokai, Takahiko Yanagitani (Waseda Univ.) US2023-55
Single crystalline piezoelectric thin films possess higher power durability and Q factor than polycrystalline ones. Howe... [more] US2023-55
pp.67-72
MIKA
(3rd)
2023-10-10
15:35
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] PbTiO3 piezoelectric thin films for shear wave type RF filters
Sota Kuninobu, Takahiko Yanagitani (Waseda Univ.)
 [more]
MIKA
(3rd)
2023-10-11
14:30
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] High power characteristics of nitride multilayered piezoelectric thin films for RF filters
Saneyuki Shibata, Takahiko Yanagitani (Waseda Univ.)
In the 5th generation mobile communication systems (5G), which are currently in widespread use, and in the 6G and beyond... [more]
MIKA
(3rd)
2023-10-11
14:30
Okinawa Okinawa Jichikaikan
(Primary: On-site, Secondary: Online)
[Poster Presentation] Multilayer piezoelectric thin-film resonators aimed at RF filters for base stations
Kazutaka Shiraiwa, Takahiko Yanagitani (Waseda Univ.)
Currently, the demand for wireless communications at high-frequency such as 5G and 6G is increasing. Piezoelectric mater... [more]
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-20
15:15
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
Elastic constant tensors cijE of (0001) ScxAl1-xN thin films (x=0-0.63) measured by Brillouin light scattering method
Hiroki Uchida (Waseda Univ.), Hayato Ichihashi (Doshisya Univ.), Masashi Suzuki (Yamanashi Univ.), Shinji Takayanagi, Mami Matsukawa (Doshisya Univ.), Takahiko Yanagitani (Waseda Univ.) EMT2023-20 MW2023-38 OPE2023-20 EST2023-20 MWPTHz2023-16
Large piezoelectricity and high Q factor in ScAlN film is attractive for RF filter applications. . Elastic constant tens... [more] EMT2023-20 MW2023-38 OPE2023-20 EST2023-20 MWPTHz2023-16
pp.61-66
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-20
15:40
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
IBAD c-axis parallel ZnO thin films for nonlinear optical device applications
Kohei Ekida, Junjun Jia, Takahiko Yanagitani (Waseda Univ.) EMT2023-21 MW2023-39 OPE2023-21 EST2023-21 MWPTHz2023-17
Wurtzite crystals (such as ZnO and AlN) are attractive for applications in laser wavelength conversion devices using non... [more] EMT2023-21 MW2023-39 OPE2023-21 EST2023-21 MWPTHz2023-17
pp.67-70
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-21
13:25
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
Development of new method for evaluating electromechanical coupling coefficient using Mason’s equivalent circuit model simulation
Yohkoh Shimano (Waseda Univ.), Kohei Yatabe (Tokyo Univ. of Agri. and Tech.), Takahiko Yanagitani (Waseda Univ.) EMT2023-56 MW2023-74 OPE2023-56 EST2023-56 MWPTHz2023-52
The electromechanical coupling coefficient is one of the important parameters for determining the performances of RF fil... [more] EMT2023-56 MW2023-74 OPE2023-56 EST2023-56 MWPTHz2023-52
pp.241-242
EA, US
(Joint)
2022-12-22
16:50
Hiroshima Satellite Campus Hiroshima [Poster Presentation] Q factor extraction of ScAlN, ZnO, PZT piezoelectric films without etching substrate
Yuki Shimizu (Waseda Univ.), Takahiko Yanagitani (Waseda Univ./JST) US2022-61
In recent years, sharp passband is required for RF filters to prevent interference between neighboring bands. The sharpn... [more] US2022-61
pp.56-61
EA, US
(Joint)
2022-12-22
16:50
Hiroshima Satellite Campus Hiroshima [Poster Presentation] Quasi-shear mode excitation of c-axis tilted MgZnO epitaxial thin film
Hiroki Kishi (Waseda Univ.), Takahiko Yanagitani (Waseda Univ./JST) US2022-62
Thickness shear mode piezoelectric thin films with high electromechanical coupling coefficient k´352 are attractive for ... [more] US2022-62
pp.62-67
EA, US
(Joint)
2022-12-22
16:50
Hiroshima Satellite Campus Hiroshima [Poster Presentation] Effect of electrode area on kt2 extraction methods from piezoelectric film/substrate structure
Ryo Seki, Yuki Shimizu, Keita Kondo, Takahiko Yanagitani (Waseda Univ) US2022-63
Electromechanical coupling coefficient (kt2) is one of the important parameters to determine the performance of BAW devi... [more] US2022-63
pp.68-73
 Results 1 - 20 of 64  /  [Next]  
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