Ryoji Hayashi
Mitsubishi Electric
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Publication
Featured researches published by Ryoji Hayashi.
european microwave conference | 1998
Mitsuhiro Shimozawa; Hiroshi Ikematsu; Ryoji Hayashi; Kenji Itoh; Yoji Isota; Osami Ishida
An even harmonic type direct conversion receiver (EH-DCR) has an advantage of suppressing a degradation of sensitivity caused by interferences such as second order intermodulation and self detected local oscillator noise, so dynamic range of the receiver is as same as that of heterodyne receiver. This paper presents a design condition of the even harmonic quadrature mixer in the EH-DCR. A developed 1.9GHz-band EH-DCR has a sensitivity of ?10ldBm and an intermodulation characteristic of 49dB. These results satisfy the requirements of Personal Handyphone System in Japan.
Electronics and Communications in Japan Part Ii-electronics | 1999
Mitsuhiro Shimozawa; Kenji Itoh; Yoji Isota; Akio Iida; Ryoji Hayashi; Osami Ishida
An even harmonic type direct conversion receiver (EH-DCR) has an advantage of suppressing a degradation of sensitivity caused by interferences such as second order intermodulation and self detected local oscillator noise, so dynamic range of the receiver is as same as that of heterodyne receiver. This paper presents a design condition of the even harmonic quadrature mixer in the EH-DCR. A developed 1.9GHz-band EH-DCR has a sensitivity of ¿10ldBm and an intermodulation characteristic of 49dB. These results satisfy the requirements of Personal Handyphone System in Japan.
Archive | 2006
Ryoji Hayashi; Naohisa Takayama; Mitsuhiro Shimozawa
Archive | 2001
Ryoji Hayashi
Archive | 1999
Takatoshi Katsura; Kenji Itoh; Shinjirou Fukuyama; Mitsuru Mochizuki; Hiroaki Nagano; Yoshinori Matsunami; Fumio Ishizu; Ryoji Hayashi
Archive | 2010
Kazutomi Mori; Hiroyuki Joba; Yoshinori Takahashi; Tomohiro Akiyama; Ryoji Hayashi; Mitsuhiro Shimozawa; Akira Inoue; Morishige Hieda; Kiyohide Sakai; Yoshihito Hirano
Archive | 2007
Kenichi Tajima; Ryoji Hayashi; Masafumi Nakane
IEICE Transactions on Electronics | 2002
Hiroshi Komurasaki; Hisayasu Sato; Masayoshi Ono; Ryoji Hayashi; Takeo Ebana; Harunobu Takeda; Kohji Takahashi; Yutaka Hayashi; Tetsuya Iga; Kohichi Hasegawa; Takahiro Miki
european microwave conference | 2010
Masaomi Tsuru; Kazuhiro Nishida; Kenji Kawakami; Daisuke Yamaguchi; Masahiko Komaki; Morishige Hieda; Ryoji Hayashi; Yoshihito Hirano
Archive | 2010
Kazutomi Mori; 森 一富; Hiroyuki Joba; 上馬 弘敬; Takanori Takahashi; 高橋 貴紀; Tomohiro Akiyama; 秋山 智浩; Ryoji Hayashi; 林 亮司; Mitsuhiro Shimozawa; 下沢 充弘; Akira Inoue; 井上 晃; Morishige Hieda; 檜枝 護重; Kiyohide Sakai; 酒井 清秀; Yoshihito Hirano; 平野 嘉仁
