Akifumi Kasamatsu

National Institute on Consumer Education — Japan

Engineering · Physical Sciences

22h-index2.4kcitations345works1.72yr avg
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Research Topics

Photonic and Optical Devices(105), Radio Frequency Integrated Circuit Design(97), Microwave Engineering and Waveguides(75), Semiconductor Quantum Structures and Devices(58), Terahertz technology and applications(41)

Publications345 total

2D Beam-Steerable 300-GHz CMOS Phased-Array Transmitter and Receiver
2025
Measurement of Attenuation Characteristics in Rainy and Foggy Conditions in Millimeter-Wave and Sub-Terahertz Bands
2025
A Measurement of Transmission Characteristics of Laminated Glasses in mmWave and Sub-THz Bands
2025
Characterization of a Stud Bump Interconnect for 40-nm CMOS Flip-Chip Up to D-Band Frequencies
2025
High-Speed and Low DC-Power Operations of Double δ-Doped GaInSb HEMTs
2025
A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology
Microwave and Optical Technology Letters·2025
Electronic Transport in Ultra-Narrow-Bandgap InAs/InGaSb Superlattices on Conductive GaSb Substrates
Journal of Electronic Materials·2025Open Access
150 GHz-Band Compact Phased-Array AiP Module for XR Applications Toward 6G
IEEE Microwave and Wireless Technology Letters·2025· 4 cited
Design of an Analog Integrated Circuit Solving the Two-Armed Bandit Problem in 180-nm CMOS
2025
Power Delay Profile Characterization for THz Communications Link
2025· 1 cited
Passive and Causal Modeling of 300-GHz-Band IC Capacitors Using Rational Polynomial Approximation
2025
Reduced activation temperature of B impurities in Si(001) epitaxial layers grown by sputter epitaxy using B-doped Si(001) target compared with Si(111) target
Journal of Crystal Growth·2025
A D-Band CMOS Transceiver Chipset Supporting 640Gb/s Date Rate with 4?4 Line-of-Sight MIMO
2025
A 300-GHz-Band 36-Gb/s Scalable 2-D Phased-Array CMOS Double Superheterodyne Receiver
IEEE Solid-State Circuits Letters·2025· 2 cited
A 640-Gb/s 4 × 4-MIMO D-Band CMOS Transceiver Chipset
IEEE Journal of Solid-State Circuits·2024· 11 citedOpen Access
Output Estimation of Photonic Reservoir Systems Considering Characteristics of Analog MAC Circuits
2024
A 300-GHz-Band 36-Gb/s Scalable 2x2 2D Phased-Array CMOS Receiver
2024· 5 cited
AD-band Power Amplifier with Dual-Frequency Matching Network in 40 nm CMOS
2024
300-GHz-Band Double-Balanced Mixer with Improved Conversion Gain Using Substrate Bias Effect in 40-nm CMOS
2024· 1 cited
Wide-Incident-Angle Radio-Wave Absorber with Loop-Shape Frequency Selective Surface
2024
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Frequent Co-authors

Issei Watanabe(20), Shinsuke Hara(18), Takeshi Yoshida(15), Shuhei Amakawa(15), Minoru Fujishima(15), Ruibing Dong(14), Kyoya Takano(13), Norihiko Sekine(13), Toshiaki Matsui(11), Kosuke Katayama(10), Nobumitsu Hirose(10), Yoshiyuki Suda(10), Iwao Hosako(9), Takashi Mimura(8), Sangyeop Lee(6), Takahiro Tsukamoto(6), Kazunori Mizuno(5), Katsumi Fujii(5), Hiroaki Hanafusa(4), Satoru Tanoi(4)