Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Naoya Kukutsu"'
Autor:
Tomoki Sagisaka, Tadao Nagatsuma, Ryohei Kaname, Li Yi, Masayuki Fujita, Masato Kikuchi, Daniel Headland, Naoya Kukutsu
Publikováno v:
Scopus-Elsevier
Terahertz waves hold potential in industrial imaging applications, to detect sub-millimeter defects and undesired foreign materials. However, terahertz imaging systems are generally bulky due to the need for optical components, and this is a key issu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9236b7dd52ebf1e3c249a682bf304df0
https://doi.org/10.23919/mwp48676.2020.9314570
https://doi.org/10.23919/mwp48676.2020.9314570
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:6831-6841
With the aim of providing an overview of the propagation channels in a vehicle engine compartment, narrow-band (1–2 MHz) and broadband (500 MHz) channels in the frequency range from 2 GHz to 7.75 GHz were analyzed. To secure as much generality of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a6e905018921a514519711079b2ba17
https://doi.org/10.1109/tvt.2015.2493042
https://doi.org/10.1109/tvt.2015.2493042
Publikováno v:
IEEE Transactions on Antennas and Propagation. 63:4408-4417
This paper studies loop antennas over artificial magnetic conductor (AMC) surfaces with the objective of designing a dual-band RF energy harvesting antenna. The AMC surface is well known to achieve low-profile and higher gain wire antennas. From a pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::034488d4a48690e39e1043892fb51836
https://doi.org/10.1109/tap.2015.2459132
https://doi.org/10.1109/tap.2015.2459132
Publikováno v:
IEEE Transactions on Antennas and Propagation. 62:5437-5444
This paper presents 300-GHz step-profiled corrugated horn antennas, aiming at their integration in low-temperature co-fired ceramic (LTCC) packages. Using substrate integrated waveguide technology, the cavity inside the multi-layer LTCC substrate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce95e2b0819c5bd3a856ac721ced3aed
https://doi.org/10.1109/tap.2014.2350520
https://doi.org/10.1109/tap.2014.2350520
Autor:
Jun Takeuchi, Akihiko Hirata, Hiroyuki Takahashi, Kei Kitamura, Naoya Kukutsu, Mitsuhiro Teshima, Yoshiaki Yamada
Publikováno v:
IEICE Transactions on Electronics. :101-110
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08409bfe9b0e673136ec9e76bfb281f1
https://doi.org/10.1587/transele.e97.c.101
https://doi.org/10.1587/transele.e97.c.101
Autor:
Hiroyuki Takahashi, Naoya Kukutsu, Jun Takeuchi, Akihiko Hirata, Koichi Murata, Toshihiko Kosugi
Publikováno v:
IEICE Transactions on Electronics. :583-591
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e2a6678b01e5bfe93452b144c77dc6
https://doi.org/10.1587/transele.e97.c.583
https://doi.org/10.1587/transele.e97.c.583
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 61:4745-4753
This paper describes a 10-Gbit/s fully integrated wireless link for last-one-mile access in optical fiber networks. The wireless equipment employs quadrature phase-shift keying (QPSK) for modulation. The transmitter (TX) head of the link includes a 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84fc303f1a36b7887dd1a794052eb33
https://doi.org/10.1109/tmtt.2013.2285354
https://doi.org/10.1109/tmtt.2013.2285354
Autor:
Yuko Fujiwara, Shoji Mochizuki, Hiroyoshi Togo, Naoya Kukutsu, Yoshihisa Fujii, Shogo Okumura, Soichi Tanaka
Publikováno v:
Journal of Wood Science. 59(5):367-374
To evaluate the dielectric anisotropy caused by wood structure at a millimeter wave frequency of 100 GHz, the dielectric parameters for flat-sawn specimens of nine wood species at 0 and 11 % moisture content (MC) were measured using a free space meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b140c612659a45861e090f00c16f098c
http://hdl.handle.net/2433/193013
http://hdl.handle.net/2433/193013
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 3:445-452
An ASK receiver MMIC operating at 300 GHz for future terahertz communications is presented. In the receiver IC, we fully integrated all necessary components-a receiving dipole antenna, high gain RF amplifier, envelop detector for demodulating ASK sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2654855c3c4a3210f05208502622f1bd
https://doi.org/10.1109/tthz.2013.2252954
https://doi.org/10.1109/tthz.2013.2252954
Autor:
Naoya Kukutsu, Hiroyoshi Togo, Shogo Okumura, Yoshihisa Fujii, Soichi Tanaka, Yuko Fujiwara, Shoji Mochizuki
Publikováno v:
Journal of Wood Science. 59:375-382
For the application of millimeter wave (MMW) technique to nondestructive evaluation of wood, the effect of annual rings on the behavior of a 100 GHz MMW transmitted through wood was examined. The complex amplitude was measured for 2 mm thick flat- (L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d100e44d06937768fa87e2a12b130188
https://doi.org/10.1007/s10086-013-1342-6
https://doi.org/10.1007/s10086-013-1342-6