Presentation 2017-12-15
A 28GHz Fractional-N Frequency Synthesizer with Reference and Frequency Doublers for 5G New Radio
Hanli Liu, Teerachot Siriburaron, Kengo Nakata, Wei Deng, Kenichi Okada, Akira Matsuzawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The increasing demand for larger data capacity drives researchers finding new spectrum beyond 4G, i.e., 28GHz frequency band. The higher carrier frequency brings wider available bandwidth while it also brings more challenges in wireless transceiver design than 4G. One of the biggest challenges is the fractional-N frequency synthesizer/PLL design in this high frequency. The phase noise at 28GHz degrades with the divide ratio N increasing. To encounter this issue, this paper introduces a fractional-N PLL architecture which utilizes both reference and frequency doublers at 40MHz reference input and 14GHz VCO output. The combination of both frequency doublers effectively lowers the divide ratio by 4 times which lower the noise contribution from the feedback divider and charge pump by 12dB. The proposed PLL achieves 0.5ps RMS jitter while consumes only 33mW power.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 28GHz5Gfractional-NPLL
Paper # CAS2017-101,ICD2017-89,CPSY2017-98
Date of Issue 2017-12-07 (CAS, ICD, CPSY)

Conference Information
Committee ICD / CPSY / CAS
Conference Date 2017/12/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Art Hotel Ishigakijima
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hideto Hidaka(Renesas) / Koji Nakano(Hiroshima Univ.) / Mitsuru Hiraki(Renesas)
Vice Chair Makoto Nagata(Kobe Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Takashi Miyoshi(Fujitsu) / Hideaki Okazaki(Shonan Inst. of Tech.)
Secretary Makoto Nagata(Univ. of Tokyo) / Hidetsugu Irie(Panasonic) / Takashi Miyoshi(Utsunomiya Univ.) / Hideaki Okazaki(Hokkaido Univ.)
Assistant Masanori Natsui(Tohoku Univ.) / Masatoshi Tsuge(Socionext) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) / Yasuaki Ito(Hiroshima Univ.) / Tomoaki Tsumura(Nagoya Inst. of Tech.) / Yohei Nakamura(Hitachi)

Paper Information
Registration To Technical Committee on Integrated Circuits and Devices / Technical Committee on Computer Systems / Technical Committee on Circuits and Systems
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A 28GHz Fractional-N Frequency Synthesizer with Reference and Frequency Doublers for 5G New Radio
Sub Title (in English)
Keyword(1) 28GHz5Gfractional-NPLL
1st Author's Name Hanli Liu
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
2nd Author's Name Teerachot Siriburaron
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
3rd Author's Name Kengo Nakata
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
4th Author's Name Wei Deng
4th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
5th Author's Name Kenichi Okada
5th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
6th Author's Name Akira Matsuzawa
6th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
Date 2017-12-15
Paper # CAS2017-101,ICD2017-89,CPSY2017-98
Volume (vol) vol.117
Number (no) CAS-343,ICD-344,CPSY-345
Page pp.pp.147-150(CAS), pp.147-150(ICD), pp.147-150(CPSY),
#Pages 4
Date of Issue 2017-12-07 (CAS, ICD, CPSY)