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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 12 of 12  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2020-03-05
10:55
Kochi Kochi City Culture-Plaza CUL=PORT
(Cancelled but technical report was issued)
Inductor-less Active Directional Coupler
Takanobu Fujiwara, Tatsuya Hagiwara, Masaomi Tsuru (MELCO) MW2019-141
In order to miniturize the directional coupler, one of the best option is to use inductors and capacitors instead of cou... [more] MW2019-141
pp.5-9
MW, ICD 2019-03-14
14:25
Okinawa   Vector sum phase shifter using active PPF with transcondactance
Akihito Hirai, Takanobu Fujiwara, Masaomi Tsuru, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2018-163 ICD2018-107
 [more] MW2018-163 ICD2018-107
pp.37-42
MW 2018-05-25
11:35
Kyoto Doshisha Univ. A 28GHz 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-band Massive MIMO in 5G
Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Tatsuya Hagiwara, Ai Osawa, Mitsuhiro Shimozawa (Mitsubishi Electric Co.) MW2018-17
 [more] MW2018-17
pp.39-43
MW 2017-11-09
12:55
Okinawa Miyakojima Marin Terminal Bldg. A 28GHz High Accuracy 6-bit Vector-Sum Phase Shifter for High SHF Wide-band Massive MIMO in 5G
Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Mitsuhiro Shimozawa (Mitsubishi Electric Co.) MW2017-117
In 5th generation mobile communication system (5G), the active phased array antenna (APAA) have attracted attention to r... [more] MW2017-117
pp.31-34
MW 2017-11-09
13:10
Okinawa Miyakojima Marin Terminal Bldg. Broadband and Precise Phase Shifter and Variable Attenuator Fabricated Using SiGe BiCMOS
Takanobu Fujiwara, Mitsuhiro Shimozawa (Mitsubishi Electric) MW2017-118
 [more] MW2017-118
pp.35-39
MWP, OPE, EMT, MW, EST, IEE-EMT [detail] 2017-07-21
11:00
Hokkaido Obihiro Chamber of Commerce and Industry An 80MHz Modulation Bandwidth High Efficiency Multi-band Envelope-Tracking Power Amplifier Using GaN Single-Phase Buck-Converter
Shuichi Sakata (Mitsubishi Electric), Sandro Lanfranco, Tapio Kolmonen, Olli Piirainen (Nokia Bell Labs), Takanobu Fujiwara, Shintaro Shinjo (Mitsubishi Electric), Peter Asbeck (Univ. of California, San Diego) EMT2017-31 MW2017-56 OPE2017-36 EST2017-33 MWP2017-33
We report a high efficiency multi-band Envelope-Tracking Power Amplifier (ET-PA) that supports modulation bandwidth up t... [more] EMT2017-31 MW2017-56 OPE2017-36 EST2017-33 MWP2017-33
pp.133-138
MW 2017-05-19
13:50
Osaka Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) Ku-band Vector-Sum Phase Shifter Using LC-Type PPF With Adjustable Operating Frequency
Takanobu Fujiwara, Koji Tsutsumi, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2017-20
Recently many vector-sum phase shifters designed with cost-effective silicon process have been reported, featuring their... [more] MW2017-20
pp.71-76
MW, ICD 2017-03-03
15:00
Okayama Okayama Prefectural Univ. A Small and Coverless T/R Module with Electromagnetic Shielded Surface Mount Packages
Hiroyuki Mizutani, Hidenori Ishibashi, Masatake Hangai, Takanobu Fujiwara, Kenichi Tajima (Mitsubishi Electric) MW2016-214 ICD2016-144
Small size and high performance electronic devices are required lately. To prevent a malfunction by an electromagnetic i... [more] MW2016-214 ICD2016-144
pp.141-144
EMCJ, IEE-EMC, MW, EST [detail] 2016-10-20
10:55
Miyagi Tohoku Univ. 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-band Massive MIMO in 5G
Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Ichiro Somada, Tatsuya Hagiwara, Eiji Taniguchi, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) EMCJ2016-63 MW2016-95 EST2016-59
In 5th generation mobile communication system (5G), the active phased array antenna (APAA) have attracted attention to r... [more] EMCJ2016-63 MW2016-95 EST2016-59
pp.21-24
MW 2016-05-20
11:35
Kyoto Kyoto Univ. Multiband and Broadband Envelope Tracking Power Amplifier Using Entirely GaN Process
Takanobu Fujiwara, Nakamizo Hideyuki, Shinjo Shintaro (MELCO), Peter Asbeck (UCSD) MW2016-20
 [more] MW2016-20
pp.51-56
MW 2014-11-21
15:45
Nagasaki Nagasaki Univ. A Study of Polar Loop Distortion Compensation for LTE Signal
Hifumi Noto, Takanobu Fujiwara, Nobuhiko Ando, Morishige Hieda (Mitsubishi Electric) MW2014-146
(To be available after the conference date) [more] MW2014-146
pp.123-128
MW 2013-11-21
10:30
Kagoshima Kagoshima Prefectural Culture Center The Correction System for the 2nd order Distortion in Mixer Utilizing DC Offset Control
Takanobu Fujiwara, Eiji Taniguchi (Mitsubishi Electric Corp.) MW2013-133
The direct conversion receiver is attractive candidate in order to realize compact and low-cost radio receivers. But it ... [more] MW2013-133
pp.11-16
 Results 1 - 12 of 12  /   
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