Takashi MAEHATA


A Line Coding for Digital RF Transmitter Using a 1-Bit Band-Pass Delta-Sigma Modulator
Takashi MAEHATA Suguru KAMEDA Noriharu SUEMATSU 
Publication:   
Publication Date: 2018/11/01
Vol. E101-B  No. 11  pp. 2313-2319
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
bandpassdelta-sigma modulatorD/A converterchannel codingrunlength
 Summary | Full Text:PDF(3.2MB)

Asymmetrical Waveform Compensation for Concurrent Dual-Band 1-bit Band-Pass Delta-Sigma Modulator with a Quasi-Elliptic Filter
Takashi MAEHATA Suguru KAMEDA Noriharu SUEMATSU 
Publication:   
Publication Date: 2018/06/01
Vol. E101-B  No. 6  pp. 1352-1358
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
bandpassdelta-sigma modulatorconcurrent dual-bandD/A converter
 Summary | Full Text:PDF(2.2MB)

1-bit Band-Pass Delta-Sigma Modulator with Parallel IIR Form for Concurrent Multiband Digital Transmitter
Takashi MAEHATA Suguru KAMEDA Noriharu SUEMATSU 
Publication:   
Publication Date: 2017/07/01
Vol. E100-B  No. 7  pp. 1152-1159
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
bandpassdelta-sigma modulatorconcurrent multibandD/A converter
 Summary | Full Text:PDF(1.6MB)

Cancellation for Asymmetrical Waveform in 1-bit Bandpass Delta-Sigma Modulators
Takashi MAEHATA Suguru KAMEDA Noriharu SUEMATSU 
Publication:   
Publication Date: 2017/06/01
Vol. E100-B  No. 6  pp. 1017-1022
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
delta sigma modulationbandpassintersymbol interferencecompensationdigital transmitter
 Summary | Full Text:PDF(1.7MB)

1-bit Feedforward Distortion Compensation Technology for Bandpass Delta-Sigma Modulation
Takashi MAEHATA Suguru KAMEDA Noriharu SUEMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/05/01
Vol. E99-B  No. 5  pp. 1087-1092
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
bandpassdelta-sigma modulatorfeedforward compensationD/A converter
 Summary | Full Text:PDF(1.7MB)