Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Shohei IMAI"'
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043155 (2022)
The at-will control of quantum states is a primary goal of quantum science and technology. The celebrated Hahn echo exemplifies such quantum-state control based on a time-reversal process in a few-level system. Here, we propose a different echo pheno
Externí odkaz:
https://doaj.org/article/bc90f4762c54402fbca7310131abbd9c
Publikováno v:
IEICE Transactions on Electronics. :421-432
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dfec3747f95bd1fb90551e63fe45e07
https://doi.org/10.1587/transele.2022mmi0008
https://doi.org/10.1587/transele.2022mmi0008
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:813-826
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d18ace8cac4050d7888f15fd8474ff5a
https://doi.org/10.1109/tmtt.2021.3124302
https://doi.org/10.1109/tmtt.2021.3124302
Publikováno v:
2021 IEEE MTT-S International Microwave Symposium (IMS).
This study presents a transformer-based Doherty combiner for a wideband Doherty amplifier suitable for use in a handset. The circuit topology configuration is based on closed-form equations. Circuit element values are optimized for wideband operation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c91bd6ccbeeefefcbc543dc6e68ac2e2
https://doi.org/10.1109/ims19712.2021.9574838
https://doi.org/10.1109/ims19712.2021.9574838
Publikováno v:
Physical Review Letters. 124
High-harmonic generation (HHG) in crystalline solids have been examined so far on the basis of one-body energy-band structures arising from electron itineracy in a periodic potential. Here, we show emergence of HHG signals which are attributed to dyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8478305ad2f779dc2b6f2a64278823b2
https://doi.org/10.1103/physrevlett.124.157404
https://doi.org/10.1103/physrevlett.124.157404
Autor:
Hiroshi Fukumoto, Masaki Kono, Masafumi Nagasaka, Koji Yamanaka, Hiromitsu Utsumi, Susumu Nakazawa, Shoji Tanaka, Shohei Imai, Takuma Torii
Publikováno v:
2016 Asia-Pacific Microwave Conference (APMC).
In Japan, test satellite broadcasting of UHDTV started in August 2016 and practical broadcasting will begin in 2018. The test broadcasting is being provided in Ku-band (11.7 to 12.75 GHz) with a modulation scheme of amplitude and phase shift keying (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d78c594b4592e2ede00529db936a3ea
https://doi.org/10.1109/apmc.2016.7931273
https://doi.org/10.1109/apmc.2016.7931273
Autor:
Akira Ohta, Koji Yamanaka, Norihiro Yunoue, Tetsuo Kunii, Takuo Morimoto, Shohei Imai, Maehara Hiroaki, Hideaki Katayama, Miyo Miyashita, Hiroshi Fukumoto, Akira Inoue, Takuma Torii
Publikováno v:
2016 46th European Microwave Conference (EuMC).
Two kinds of high efficiency power amplifiers (PAs) at X and Ku bands utilizing 0.15 μm GaN HEMT technology are presented. The 0.15 μm GaN HEMT technology with cutoff frequency of over 40 GHz enables them to realize high RF performances at higher f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ecf5e969b252fa90db88fa1d52c5ddc
https://doi.org/10.1109/eumc.2016.7824406
https://doi.org/10.1109/eumc.2016.7824406
Autor:
Hiroshi Fukumoto, Shohei Imai, Motoyoshi Koyanagi, H. Ohtsuka, Hiroaki Maehara, Akira Inoue, K. Yamanaka, Akira Ohta
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
A high power internally matched GaN-HEMT amplifier at Ku-Band was successfully developed. In order to achieve high output power over the targeted bandwidth, a new balancing network is added to the gate side matching circuit. At 24 V drain supply volt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab0b65702677955f3332222cec338ac
https://doi.org/10.1109/mwsym.2014.6848263
https://doi.org/10.1109/mwsym.2014.6848263
Publikováno v:
2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications.
A Rectifying Antenna (Rectenna) is one of the most important components for a wireless power transmission. It has been developed for many applications such as Space Solar Power System (SSPS), and Radio Frequency Identification (RFID) etc. The Rectenn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0a07cc5fbfec34390e37a7521cdeab7
https://doi.org/10.1109/imws.2011.5877081
https://doi.org/10.1109/imws.2011.5877081
Publikováno v:
The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2007:1P1-C06_1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::801a372b74c1d3cacecdf5010741925c
https://doi.org/10.1299/jsmermd.2007._1p1-c06_1
https://doi.org/10.1299/jsmermd.2007._1p1-c06_1