Akihiro Yamagishi

A 2-V, 2-GHz low-power direct digital frequency synthesizer chip-set for wireless communication

Akihiro Yamagishi, Masahito Ishikawa, Takehiko Tsukahara et al. · IEEE Journal of Solid-State Circuits · 1998 · 90 citations

Engineering, Radio Frequency, High-frequency Device +11

2-GHz RF front-end circuits in CMOS/SIMOX operating at an extremely low voltage of 0.5 V

Mitsuru Harada, Takehiko Tsukahara, Junichi Kodate et al. · IEEE Journal of Solid-State Circuits · 2000 · 43 citations

Low-power Electronics, Electrical Engineering, Engineering +12

A low-power direct digital synthesizer using a self-adjusting phase-interpolation technique

Hideyuki Nosaka, Yo Yamaguchi, Akihiro Yamagishi et al. · IEEE Journal of Solid-State Circuits · 2001 · 34 citations

Engineering, Analog-to-digital Converter, Clock Recovery +10

A 1-V 2.4-GHz PLL synthesizer with a fully differential prescaler and a low-off-leakage charge pump

Akihiro Yamagishi, Mamoru Ugajin, Takehiko Tsukahara · 2003 · 22 citations

Low-power Electronics, Electrical Engineering, Engineering +11

A phase-interpolation direct digital synthesizer with an adaptive integrator

Akihiro Yamagishi, Hideyuki Nosaka, M. Muraguchi et al. · IEEE Transactions on Microwave Theory and Techniques · 2000 · 21 citations

Numerical Analysis, Engineering, Analog-to-digital Converter +11