Naofumi Okubo

A large-signal characterization of an HEMT using a multilayered neural network

K. Shirakawa, M. Shimiz, Naofumi Okubo et al. · IEEE Transactions on Microwave Theory and Techniques · 1997 · 52 citations

Engineering, Electrical Engineering, Circuit Theory +16

Structural determination of multilayered large-signal neural-network HEMT model

K. Shirakawa, M. Shimizu, Naofumi Okubo et al. · IEEE Transactions on Microwave Theory and Techniques · 1998 · 47 citations

Engineering, Computer Engineering, Electrical Engineering +16

A 15/60 GHz one-stage MMIC frequency quadrupler

K. Shirakawa, Yoji Kawasaki, Yoji Ohashi et al. · 2002 · 25 citations

Engineering, Electrical Engineering, Analog Electronics +16

GaAs MESFET characterization using least squares approximation by rational functions

K. Nagatomo, Y. Daido, M. Shimizu et al. · IEEE Transactions on Microwave Theory and Techniques · 1993 · 21 citations

Engineering, Electrical Engineering, Circuit Theory +16

New method of analyzing BER performance of GFSK with postdetection filtering

M. Shimizu, N. Aoki, K. Shirakawa et al. · IEEE Transactions on Communications · 1997 · 20 citations

Engineering, Communication, Electrical Engineering +17