Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Yasuhiro Tamayama"'
Publikováno v:
ELEKTRIKA- Journal of Electrical Engineering. 21:82-85
The wireless transfer characteristics between a circuit-shape leaky waveguide and a /2 dipole antenna were analyzed with scattering parameters obtained with the FDTD method. The circuit-shaped leaky waveguide was composed of two pairs of straight
Autor:
Tamami Maruyama, Koki Shibata, Masashi Nakatsugawa1, Yasuhiro Tamayama, Manabu Omiya, Tsunayuki Yamamoto, Takahiko Nakamura, Kouzoh Ohshima, Mitsuru Muramoto, Yutaka Nasuno, Keiichi Ito
Publikováno v:
ELEKTRIKA- Journal of Electrical Engineering. 21:86-89
This paper proposes to transform microwaves for snow melting, which slightly leaking from the slotted waveguide, into electric power using a wireless power transmission technique for effective use. A combination of left-handed and right-handed wavegu
Publikováno v:
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC).
Autor:
Yasuhiro Tamayama, Hiromu Yamamoto
Publikováno v:
Physical Review Applied. 18
We propose and verify a method for controlling the frequency dependence of the group delay of electromagnetic waves over a broad frequency range using the Brewster effect in single-layer metamaterials with finite thickness, here referred to as metafi
Autor:
Tamami Maruyama, Masashi Nakatsugawa, Takahiko Nakamura, Yasuhiro Tamayama, Tsunayuki Yamamoto, Manabu Omiya, Keiichi Ito, Kouzoh Ohshima, Mitsuru Muramoto, Yutaka Nasuno
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Autor:
Yasuhiro Tamayama, Ryosuke Yamada
To realize efficient nonlinear metamaterials, we investigate a method for enhancing the local electric field in a metamolecule composed of two radiatively coupled cut-wire resonators where resonance of the cut-wire resonators and low-group-velocity p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0fea479dc3d297605117a3891eae572
http://arxiv.org/abs/2108.04684
http://arxiv.org/abs/2108.04684
Publikováno v:
2021 97th ARFTG Microwave Measurement Conference (ARFTG).
Autor:
Ryusei Momosaki, Moritsugu Sakamoto, Kohei Noda, Yasuhiro Tamayama, Tomoyuki Sasaki, Takeya Unuma, Takeya Sakai, Yukitoshi Hattori, Nobuhiro Kawatsuki, Hiroshi Ono
Publikováno v:
Journal of the Optical Society of America B. 39:1964
A theoretical framework for determining biaxial anisotropy suitable for reducing the incident angle dependence of a polarization grating is proposed. The principal refractive indices are uniquely given by quantifying the biaxial anisotropy through th
Autor:
Yasuhiro Tamayama, Kengo Kanari
We evaluate the transient response of an optically tunable meta-atom composed of an electric inductor-capacitor resonator that is loaded with a piece of high-resistivity silicon and perform a proof-of-concept experiment to demonstrate the storage and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11dc04e4dccd5c7f13d981747d0dca57
Autor:
Yasuhiro Tamayama, Yutaro Kida
We develop a method to control the group delay of electromagnetic waves continuously using a doubly resonant metasurface. The method is based on the dependences of i) the group velocity in a medium featuring two resonance lines on the resonance linew
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef4e620e8e4eb1bcec68185e68e09174
http://arxiv.org/abs/1909.04833
http://arxiv.org/abs/1909.04833