Yoshikazu Dooi
Fujitsu
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Publication
Featured researches published by Yoshikazu Dooi.
european microwave conference | 1977
Haruo Yokouchi; Akira Izumi; Yoshikazu Dooi; Kazuo Takahara
A 7GHz band GaAs FET amplifier for the straight-through-repeater has been developed. The amplifier has six single-ended stages, a 40dB linear gain, a 4 to 4.5dB noise figure and 17dBm saturated output power over a frequency range of 6.5 to 6.9GHz. The power consumption is lW maximum. Distortion for FM transmission is sufficiently low over a wide dynamic range up to saturation, so the repeater needs no additional AGC circuit for output limitting. 960 telephone channel FM Transmission noise loading test results show distortion to be less than 10pWOp up to saturation. For two FM/ FDM carrier transmission, the distortion is nearly the same as single carrier up to the 1dB compression point.
Archive | 1984
Satoshi Ishii; Yoshikazu Dooi; Hiroyuki Yatsuka; Tetsuo Seki
Archive | 2004
Yoshikazu Dooi; Satoshi Ishii; Hiroyuki Yatsuka; Nobukazu Shima; Masaki Hitotsuya
Archive | 2003
Satoshi Ishii; Yoshikazu Dooi; Masayuki Kishida
Archive | 1980
Yutaka Hirano; Masanobu Itoh; Akira Izumi; Yoshikazu Dooi
Archive | 1988
Yutaka Hirano; Masanobu Itoh; Akira Izumi; Yoshikazu Dooi
Archive | 2003
Satoshi Ishii; Yoshikazu Dooi; Sadanori Matsui
Archive | 2004
Satoshi Ishii; Yoshikazu Dooi; Hiroyuki Yatsuka; Tetsuo Seki
Archive | 2004
Yoshikazu Dooi; Satoshi Ishii; Hiroyuki Yatsuka; Nobukazu Shima; Masaki Hitotsuya
Archive | 2004
Yoshikazu Dooi; Satoshi Ishii; Hiroyuki Yatsuka; Nobukazu Shima; Masaki Hitotsuya
