Hayashi Ryoji

Efficiency Enhancement of250WDoherty PowerAmplifiers Using Virtual OpenStubTechniques forUHF-bandOFDM Applications

Masatoshi Nakayama, Y. Isota, Kenichi Horiguchi, 2006 .

A Downsized Moving-Average-Type Sampling filter

Sato Hisayasu, Hayashi Ryoji, Hamada Nao, 2007 .

Amplitude Adjustment Spur Suppression Technique of a Digital Frequency Synthesizer Using a PH-DAC

Tajima Kenichi, Hieda Morishige, Hayashi Ryoji, 2010 .

Phase Control Technique by Shifting of Control Data in a Fractional-N PLL Synthesizer

Tajima Kenichi, Hayashi Ryoji, 2006 .