Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kazuyuki Ozaki"'
System validation of millimeter-wave beam multiplexing with interleaved hybrid beam-forming antennas
Autor:
Atsushi Honda, Kazuyuki Ozaki, Chikara Kojima, Zhengyi Li, Toshihiro Shimura, Takenori Ohshima, Masahiko Shimizu, Kenichi Nishikawa, Hiroshi Ashida, Shohei Ishikawa, Shunsuke Fujio, Yoji Ohashi
Publikováno v:
PIMRC
This paper describes beam division multiplexing at millimeter wave band using interleaved hybrid beam-forming (BF) antennas. The antenna elements are located alternately to make narrow beam-width of about 5 degrees, and the user multiplexing calculat
Publikováno v:
Journal of the Magnetics Society of Japan. 25:322-327
TbFeCo perpendicular magnetic recording media were developed by employing a NiP underlayer to control the magnetic properties of TbFeCo magnetic layer. With the NiP underlayer the magnetization reversal changed from the wall motion to the rotation mo
Autor:
Yuzuru Yamakage, Hiroyasu Yoshikawa, Satoshi Shimokawa, Koichi Tezuka, Kazuyuki Ozaki, Yasumasa Iwamura, Kazushi Uno
Publikováno v:
Japanese Journal of Applied Physics. 47:5915-5917
We have developed a new objective lens for a holographic storage system to increase areal density. To balance focal length and working distance, we adopted a finite objective lens. By incorporating phase conjugate reproduction into the finite objecti
Publikováno v:
IEEE Transactions on Magnetics. 37:1409-1411
A near-field MO recording was done at a wavelength of 680 nm using a super-hemispherical solid immersion lens (SIL) flying head. The SIL optical system has a designed NA of 1.46. The SIL can write and read marks to a minimum length of about 0.15 /spl
Autor:
Soichi Hama, Kazuyuki Ozaki, Akio Ito, Akifumi Muto, Takemi Igarashi, Toshihiro Ishizuka, Yoshiro Goto
Publikováno v:
Microelectronic Engineering. 16:53-60
We have developed an EB delay tester for high-speed, high-accuracy measurement of the delay time between I/O pins of LSIs. In order to replace the measured LSI in the air, the LSI is placed on a multilayer board and measurement terminals on the back
Publikováno v:
International Topical Meeting on Microwave Photonics. MWP '96 Technical Digest. Satellite Workshop (Cat. No.96TH8153).
We have developed a novel probing system for internal node diagnostics. This probe uses an electro-optic sampling technique. It has sub-/spl mu/m spatial resolution, a few mV voltage resolution and 100 ps temporal resolution. The prototype system has
Publikováno v:
Japanese Journal of Applied Physics. 39:L1161
TbFeCo media for perpendicular magnetic recording were developed by employing a NiP underlayer that controls the magnetic properties of a TbFeCo magnetic layer. Dynamic write-read characteristics were examined using a conventional merge-type giant ma
Publikováno v:
Journal of Electron Microscopy.
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 5:84
We have developed an electron beam (EB) probing system with an ultrahigh time resolution of 10 ps. To achieve this, the distortion of the rise/fall time of the observed waveform must be less than 10 ps and the resolution of the time scale must be 10