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Naofumi Okubo

Observed names: N. Okubo, Naofum Okubo, Naofumi OKUBO
OpenAlex ID: A5111603965
A large-signal characterization of an HEMT using a multilayered neural network
1997 · K. Shirakawa, M. Shimiz, et al. · IEEE Transactions on Microwave Theory and Techniques · 51
Structural determination of multilayered large-signal neural-network HEMT model
1998 · K. Shirakawa, M. Shimizu, et al. · IEEE Transactions on Microwave Theory and Techniques · 46
A 15/60 GHz one-stage MMIC frequency quadrupler
2002 · K. Shirakawa, Y. Kawasaki, et al. · IEEE Microwave and Millimeter-Wave Monolithic Circuits Symposium (MMWMC) · 24
GaAs MESFET characterization using least squares approximation by rational functions
1993 · K. Nagatomo, Y. Daido, et al. · IEEE Transactions on Microwave Theory and Techniques · 22
An FM-CW radar module with front-end switching heterodyne receiver
2003 · T. Saito, N. Okubo, et al. · IEEE MTT-S International Microwave Symposium digest · 19
New method of analyzing BER performance of GFSK with postdetection filtering
1997 · M. Shimizu, N. Aoki, et al. · IEEE Transactions on Communications · 19
A 6-GHz 80-W GaAs FET Amplifier with a TM-Mode Cavity Power Combiner
1984 · Y. Tokumitsu, T. Saito, et al. · IEEE Transactions on Microwave Theory and Techniques · 18
A new empirical large-signal HEMT model
1996 · K. Shirakawa, M. Shimizu, et al. · IEEE Transactions on Microwave Theory and Techniques · 15
A 6-GHz 80-W GaAs FET Amplifier with TM-Mode Cavity Power Combiner
2005 · N. Okubo, Y. Kaneko, et al. · IEEE MTT-S International Microwave Symposium digest · 11
Automotive FM-CW Radar with Heterodyne Receiver
1996 · Tamio Saito, Teruhisa Ninomiya, et al. · IEICE Transactions on Communications · 6
A highly efficient, S-band, 100-W linear GaAs FET power amplifier for mobile communications satellites
1990 · Akio Iso, Yoshikazu Dooi, et al. · 6
3D-Scan Radar for Automotive Application
2012 · Shuhei Kobashi, Yasuhiro Kurono, et al. · 19th ITS World CongressERTICO - ITS EuropeEuropean CommissionITS AmericaITS Asia-Pacific · 5
76 Hz automotive radar chipset with stabilizing method for face-down high-frequency circuits
2002 · Y. Watanabe, T. Hirose, et al. · Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference · 5
Genetic Determination of Large-Signal HEMT Model
1997 · Kazuo Shirakawa, Naofum Okubo · European Microwave Conference (EuMC) · 4
38-GHz Band High-Power MMIC Amplifier Design using Improved Load-Pull Method
1990 · Kazuo Nagatomo, Shoichi Koike, et al. · European Microwave Conference (EuMC) · 4
Hemt Millimeter-wave Monolithic Ic Technology for 76-ghz Automotive Radar
1998 · Yoshio Watanabe, Naofumi Okubo · 3
A 38-GHz on-board solid-state power amplifier for millimeter-wave satellite communication
1990 · Y. Asano, Naofumi Okubo, et al. · 3
A neural network characterization of a HEMT
1996 · Kazuo Shirakawa, Naofumi Okubo · European Microwave Conference (EuMC) · 2
Experimental millimeter-wave satellite communications system
1990 · M. Shimada, Yoshiaki Suzuki, et al. · Space Technology and Science · 2
Class-A GaAs FET power amplifier design for optimizing intermodulation product
2003 · Y. Daido, M. Minowa, et al. · IEEE MTT-S International Microwave Symposium digest · 1
Hemt-based Millimeter-wave Monolithic Ic Technology for 76 Ghz Automotive Radar
1999 · Yoshio Watanabe, Naofumi Okubo · 1
A 50-GHz low-noise amplifier designed using noise parameters from an equivalent circuit
1993 · Kyoichi Ishii, Tetuo Yamamoto, et al. · European Microwave Conference (EuMC) · 1
A solid state power amplifier for mobile communications satellites
1988 · Yoshikazu Dooi, Akio Iso, et al. · 1
GaAs FET Amplifier with TM-Mode Cavity Power Combiner
1983 · Naofumi Okubo, Yoshiaki Kaneko, et al. · 1
Genetic Determination Of Large-signal HEMT Model
2005 · K. Shirakawa, N. Okubo · European Microwave Conference (EuMC)
Works count: 33
Citation count: 270
H-index: 9
I10-index: 9
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