Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Masahiro Toki"'
Autor:
Masahiro Hikita, Masahiro Toki, Yasuhiro Uemoto, Hiroto Yamagiwa, Ayanori Ikoshi, Kenichiro Tanaka, Kazuki Suzuki, Daijiro Arisawa, Tetsuzo Ueda, Manabu Yanagihara
Publikováno v:
IRPS
Reliability of a GaN-based Hybrid-Drain-embedded Gate Injection Transistor (HD-GIT) under continuous switching operation is investigated to extract the lifetime under a practical switching application. Switching lifetimes are deduced by varying ambie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9643103594f017b842e32d508e74848e
https://doi.org/10.1109/irps.2018.8353594
https://doi.org/10.1109/irps.2018.8353594
Autor:
Kenichiro Tanaka, Tetsuzo Ueda, Tatsuo Morita, Tsuguyasu Hatsuda, Masahiro Ishida, Masahiro Toki, Masahiro Hikita, Ayanori Ikoshi, Kazuki Yokoyama, Yasuhiro Uemoto, Manabu Yanagihara
Publikováno v:
2017 IEEE International Reliability Physics Symposium (IRPS).
Reliability tests on 600V-rated GaN-based normally-off hybrid-drain-embedded Gate Injection Transistor (HD-GIT) are performed. High-temperature reverse-bias test on HD-GIT reveals that the lifetime is dependent on the leakage current before the relia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ec0fb458dcfbd5b478782126e5cbf61
https://doi.org/10.1109/irps.2017.7936308
https://doi.org/10.1109/irps.2017.7936308
Autor:
Masahiro Toki, Takashi Fuchisawa
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 77:72-80
A method is investigated for an analysis of the level characteristics of the two-port active impedance in a CMOS quartz crystal oscillator circuit used widely as a clock source of electronic devices. As a result, it was found that the negative resist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ce90de9957d261546379c9e51628c49
https://doi.org/10.1002/ecjb.4420770609
https://doi.org/10.1002/ecjb.4420770609
Publikováno v:
Scopus-Elsevier
The analysis of resonant electrical length and unloaded Q for the miniaturized dielectric coaxial stepped impedance resonator (SIR), used often in diplexers of portable radio telephones, is performed usually with the assumption of only fundamental TE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4de2bcc3241063ab47cd37ee1f4b252
https://doi.org/10.1002/ecjb.4420760204
https://doi.org/10.1002/ecjb.4420760204
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 72:10-16
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8551aaa4011995177811f3b25f845003
https://doi.org/10.1002/ecjb.4420721102
https://doi.org/10.1002/ecjb.4420721102
Publikováno v:
IEEJ Transactions on Electronics, Information and Systems. 108:692-698
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::649f123bd8598d9707e64c2d4ad2c2f4
https://doi.org/10.1541/ieejeiss1987.108.9_692
https://doi.org/10.1541/ieejeiss1987.108.9_692
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 68:68-76
Crystal oscillator circuits have been used widely in such electronic equipment as communication devices and measurement instruments. However, until the crystal is connected, usually it is uncertain if the circuit oscillates or it is difficult to dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8630752d33221aeecaa6be57c6a99d65
https://doi.org/10.1002/ecjb.4420680608
https://doi.org/10.1002/ecjb.4420680608
Publikováno v:
Scopus-Elsevier
As equipment becomes smaller and lighter, the antenna needs to become smaller and planarized. One of the analysis methods for the small antenna with a complex configuration is the Diakoptic (DK) method which is a type of moment method. By means of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ed44fcf8e61c13109556516ee7ed3f8
http://www.scopus.com/inward/record.url?eid=2-s2.0-0026858726&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0026858726&partnerID=MN8TOARS
Publikováno v:
Scopus-Elsevier
A novel flat antenna system for energy density reception for mobile telephony is presented, and the configuration of the model antenna is demonstrated. The system is based on the assembly of a notch array cut into the circular disk of a ring patch an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::522fab0bba2f6243c8760abfa9730fcb
http://www.scopus.com/inward/record.url?eid=2-s2.0-0025559956&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0025559956&partnerID=MN8TOARS
Publikováno v:
Scopus-Elsevier
In digital mobile communication, the directional diversity method is useful against fading. In this method, the antennas are switched successively to the antenna directed toward the arrival of the desired signal. In this paper, a four-directional swi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eea92336e02244d6e925058fbb8917f
http://www.scopus.com/inward/record.url?eid=2-s2.0-0026193441&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0026193441&partnerID=MN8TOARS