Go Endo
Fujitsu
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Publication
Featured researches published by Go Endo.
international microwave symposium | 2008
Tokihiro Nishihara; Masafumi Iwaki; Go Endo; Xiaoyu Mi; Shinji Taniguchi; Masanori Ueda; Yoshio Satoh
This paper describes a 3.0 ° 2.5 ° 0.7 mm3 wideband code division multiple access (WCDMA) Band I duplexer with receiver (Rx) balanced output we developed. The low-loss and power-durable film bulk acoustic resonator (FBAR) and the single-to-balanced double mode SAW (DMS) were utilized for the transmitter (Tx) and the Rx filter respectively. It was experimentally confirmed that the 2nd distortion of FBAR was significantly worse than that of the surface acoustic wave (SAW). In order to suppress the 2nd harmonic due to the nonlinear distortion of the duplexer and the power amplifier (PA), a notch circuit was implemented at the antenna port using our high-Q Integrated Passive Devices (IPD) technology. As a result, we realized the duplexer with suppressed nonlinear distortion as well as excellent filter response.
Archive | 2007
Motoaki Hara; Tokihiro Nishihara; Masanori Ueda; Go Endo
Archive | 1997
Shinji Taniguchi; Tokihiro Nishihara; Tsuyoshi Kawasaki Yokoyama; Masafumi Iwaki; Go Endo; Yasuyuki Saitou; Hisanori Ehara; Masanori Ueda
Archive | 2006
Tokihiro Nishihara; Shogo Inoue; Takashi Matsuda; Masanori Ueda; Masafumi Iwaki; Shinji Taniguchi; Go Endo
Archive | 2007
Masanori Ueda; Masafumi Iwaki; Tokihiro Nishihara; Shinji Taniguchi; Go Endo; Yasuo Ebata
Archive | 2008
Masanori Ueda; Tokihiro Nishihara; Shinji Taniguchi; Tsuyoshi Yokoyama; Go Endo; Yasuyuki Saitou
Archive | 2010
Go Endo; Hajime Shirai
Archive | 2009
Shinji Taniguchi; Tokihiro Nishihara; Masafumi Iwaki; Masanori Ueda; Go Endo; Tsuyoshi Yokoyama; Takeshi Sakashita; Motoaki Hara
Archive | 2013
Shinji Taniguchi; o Fujitsu Limited; Tokihiro Nishihara; Tsuyoshi Yokoyama; Masafumi Iwaki; Go Endo; Yasuyuki Saitou; Hisanori Ehara; Masanori c Ueda
Archive | 2014
Go Endo; Yusuke Sawada
