Presentation 2016-10-28
[Invited Talk] Research and Development of Digital Radio Frequency Technology
Takashi Maehata, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We propose the digital RF front end to consist of 1-bit digital RF transmitter and direct RF undersampling receiver. This architecture can reduce the size of transmitter and receiver because it does not require the local oscillator and the frequency conversion mixer. Therefore this RF front end is free from the interference among the mixers, locals and phase locked loops and this can enhance the miniaturization for 5G Massive Multiple-Input-Multiple-Output(MIMO), having large number of transmitters and receivers. In this paper, the 1-bit digital RF transmitter based on 1-bit bandpass delta sigma modulator, the direct RF undersampling S/H CMOS IC and technological trend are also introduced.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bandpass / delta-sigma / carrier aggregation / Undersampling / CMOS / RFIC / MIMO / 5G
Paper # SR2016-77
Date of Issue 2016-10-20 (SR)

Conference Information
Committee SR
Conference Date 2016/10/27(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Osaka Univ. Nakanoshima Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Technical Exhibition, Product Exhibition, etc.
Chair Takeo Fujii(Univ. of Electro-Comm.)
Vice Chair Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.)
Secretary Kenta Umebayashi(Shinshu Univ.) / Masayuki Ariyoshi(NICT) / Suguru Kameda
Assistant Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.)

Paper Information
Registration To Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] Research and Development of Digital Radio Frequency Technology
Sub Title (in English)
Keyword(1) Bandpass
Keyword(2) delta-sigma
Keyword(3) carrier aggregation
Keyword(4) Undersampling
Keyword(5) CMOS
Keyword(6) RFIC
Keyword(7) MIMO
Keyword(8) 5G
1st Author's Name Takashi Maehata
1st Author's Affiliation Sumitomo Electric Industries Ltd.(SEI)
2nd Author's Name Mizuki Motoyoshi
2nd Author's Affiliation Tohoku University(Tohoku Uni.)
3rd Author's Name Suguru Kameda
3rd Author's Affiliation Tohoku University(Tohoku Uni.)
4th Author's Name Noriharu Suematsu
4th Author's Affiliation Tohoku University(Tohoku Uni.)
Date 2016-10-28
Paper # SR2016-77
Volume (vol) vol.116
Number (no) SR-276
Page pp.pp.127-134(SR),
#Pages 8
Date of Issue 2016-10-20 (SR)