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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 22  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2023-11-16
13:00
Okinawa Nago City Industrial Support Center (Okinawa)
(Primary: On-site, Secondary: Online)
A Ka-band Three-Stage GaN MMIC Doherty Power Amplifier with Wideband Tee-line Doherty Network for 5G Applications
Keigo Nakatani, Yutaro Yamaguchi, Ko Kanaya, Akihito Hirai (Mitsubishi Electric) MW2023-128
 [more] MW2023-128
pp.13-18
MW 2023-11-16
15:45
Okinawa Nago City Industrial Support Center (Okinawa)
(Primary: On-site, Secondary: Online)
A 280 GHz Quadruple-Push Subharmonic Down-Conversion Mixer with Load Impedance Optimization
Akihito Hirai (MELCO), Yuki Tsukui (MEE), Shinya Yokomizo (MELCO), Ryo Sakamaki (AIST), Sho Ikeda (MELCO) MW2023-134
 [more] MW2023-134
pp.43-48
MW 2023-03-02
10:00
Tottori Tottori Univ.
(Primary: On-site, Secondary: Online)
A Ka-band Variable-Gain Phase Shifter Using Phase Compensation Technique with Varactors
Akihito Hirai (Melco), Yuki Tsukui (MEE), Koji Tsutsumi, Kazutomi Mori (Melco) MW2022-158
 [more] MW2022-158
pp.7-12
MW 2022-03-03
13:15
Online Online [Special Talk] Vector Sum Phase Shifter Using Active gm-C Poly Phase Filter
Akihito Hirai, Masaomi Tsuru, Kazutomi Mori, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2021-119
 [more] MW2021-119
pp.48-53
AP 2021-12-16
14:50
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
A Design of a Short-Circuited Ring Patch Antenna with a Stacked Patch and a LNA Mounted on the Center of the Antenna
Shunichi Ikeda, Kei Yokokawa, Narihiro Nakamoto, Akihito Hirai, Toru Fukasawa, Masataka Otsuka (Mitsubishi Electric Corp.) AP2021-133
 [more] AP2021-133
pp.25-30
MW, WPT 2020-04-23
12:50
Online Online V-band Vector-sum Phase Shifter with Two Frequency Mixing with Image Rejection
Shinya Yokomizo, Akihito Hirai, Fujiwara Takanobu, Masaomi Tsuru (Mitsubishi Electric Corp.) WPT2020-2 MW2020-2
 [more] WPT2020-2 MW2020-2
pp.7-12
ED, MW 2020-01-31
09:05
Tokyo Kikai-Shinko-Kaikan Bldg. Phase Synchronization Technique Between Fractional-N PLLs by Correcting Phase Error due to Cycle Slip using Reference Delta-Sigma Modulator
Sho Ikeda, Akihito Hirai, Koji Tsutsumi, Masaomi Tsuru (MELCO) ED2019-93 MW2019-127
 [more] ED2019-93 MW2019-127
pp.1-5
MW 2019-11-14
12:50
Okinawa Minami Daido Villa. Tamokuteki Koryu Center Phase detector based on mixer with sinusoidal output voltage using small delay
Akihito Hirai, Masaomi Tsuru, Mitsuhiro Shimozawa (Mitsubishi Electric Corp) MW2019-100
 [more] MW2019-100
pp.1-5
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 2018-11-15
13:05
Nagasaki Fukue Cultural Hall Wide frequency range digital frequency discriminator using time-to-digital converter and adaptive control of input counter for Instantaneous Frequency Measurement
Akihito Hirai, Koji Tsutsumi, Masaomi Tsuru, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2018-96
 [more] MW2018-96
pp.25-30
MW 2018-11-15
13:55
Nagasaki Fukue Cultural Hall Trial manufacture of V-band vector-sum phase shift mixer
Shinya Yokomizo, Akihito Hirai, Fujiwara Takanobu, Masaomi Tsuru (Mitsubishi Electric Corp.) MW2018-98
V-band vector-sum phase shift mixer is developed. The vector-sum phase shift mixer is composed of VGAs (Variable Gain Am... [more] MW2018-98
pp.35-40
ICD, MW 2018-03-02
13:25
Shiga The University of Shiga Prefecture Vector-sum phase shift mixer
Akihito Hirai, Shinya Yokomizo, Fujiwara Takanobu, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.Mitsubishi Electric Corp.) MW2017-194 ICD2017-118
 [more] MW2017-194 ICD2017-118
pp.97-102
MW 2017-11-10
09:45
Okinawa Miyakojima Marin Terminal Bldg. Active PPF using transconductance of transistor
AKihito Hirai, Taknobu Fujiwara, Mitsuhiro Shimozawa (Mitsubishi Electric Crop.) MW2017-128
 [more] MW2017-128
pp.87-92
SANE 2017-05-22
11:25
Tokyo Kikai-Shinko-Kaikan Bldg. Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement
Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi, Mitsuhiro Shimozawa (Mitsubishi Electric Crop.) SANE2017-5
 [more] SANE2017-5
pp.23-28
MW 2016-11-17
13:50
Saga Saga Univ. Image Rejection Mixer with Tunable Poly Phase Filter using external reference resistor
Akihito Hirai, Koji Tsutsumi, Mitsuhiro Shimozawa (Mitsubishi Electric) MW2016-121
An Image rejection mixer (IRM) with Poly Phase Filter (PPF) has been commonly used in RF transceiver integral circuits (... [more] MW2016-121
pp.27-32
MW 2015-11-19
11:00
Okinawa Univ. of the Ryukyus High resolution and high precision Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement
Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi (Mitsubishi Electric Corp.) MW2015-122
 [more] MW2015-122
pp.11-16
MW 2014-11-21
16:10
Nagasaki Nagasaki Univ. The sampling clock circuit using a Manchester code and the data detection technique
Yusuke Kitsukawa, Kenichi Tajima, Akihito Hirai, Hiroyuki Mizutani, Kenji Kawakami (Mitsubishi Electric) MW2014-147
The sampling clock circuit using a Manchester code and the data detection technique are described. The proposal techniqu... [more] MW2014-147
pp.129-132
ICD, ITE-IST 2014-07-03
10:00
Shimane Izumo-shi (Shimane) Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement
Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi (Mitsubishi Electric) ICD2014-19
The Digital Frequency Discriminator (DFD) with delay lines has been commonly used at instantaneous frequency measurement... [more] ICD2014-19
pp.1-6
ICD, ITE-IST 2013-07-05
11:00
Hokkaido San Refre Hakodate Development of 64 Linear Array ROIC for 3D Imaging LADAR
Akihito Hirai, Koji Tsutsumi, Nobuki Kotake, Hidenobu Tsuji, Masaharu Imaki, Shumpei Kameyama, Eiji Taniguchi, Yoshihito Hirano (Mitsubishi Electric) ICD2013-35
 [more] ICD2013-35
pp.69-74
MW 2012-11-22
14:00
Okinawa   Fast and High Precision Phase Detector using an integrator with constant integration time
Akihito Hirai, Koji Tsutsumi, Yoshinori Takahashi, Eiji Taniguchi (Mitsubishi Electric) MW2012-125
 [more] MW2012-125
pp.69-74
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