Presentation 2016-10-21
An Image Rejection Type Ku-Band Direct RF Undersampling CMOS Receiver
Keita Norishima, Tomokazu Koizumi, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Direct RF under sampling reception has been developed to reduce the size and the power consumption of the terrestrial wireless terminals. We have developed a series/shunt sampling switch type sample and hold (S/H) IC for Ku-band(12.2-12.75GHz) Very Small Aperture Terminal (VSAT) under sampling receiver. In this paper, we propose an image rejection type direct RF undersampling receiver. By using a direct RF I/Q Sample and Hold (S/H) circuits, and 90 degree power combiners in the digital domain, Upper Side Band (USB) and Lower Side Band (LSB) signals can be separated into two different (USB and LSB) output ports. Therefore the image rejection functionality can be achieved with half of the clock frequency of the conventional RF undersampling receivers. The proposed RFIC is designed for Ku-band (12.25 - 12.80 GHz, system bandwidth of 550MHz) very small aperture terminal (VSAT) application and is fabricated in 90 nm CMOS process. The fabricated RFIC performs a Signal-to-Noise Ratio (SNR) of higher than 27.4 dB and an Image Rejection Ratio (IRR) of higher than 19.5 dB with 610 MHz sampling clock.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Digital RF / RFIC / CMOS / Microwave circuit / Sampling mixer
Paper # EMCJ2016-79,MW2016-111,EST2016-75
Date of Issue 2016-10-13 (EMCJ, MW, EST)

Conference Information
Committee EMCJ / IEE-EMC / MW / EST
Conference Date 2016/10/20(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tohoku Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave, Electromagnetic simulation, EMC, etc.
Chair Hideaki Sone(Tohoku Univ.) / Ken Kawamata(Tohoku-gakuin Univ.) / Yohei Ishikawa(Kyoto Univ.) / Hideaki Kimura(NTT)
Vice Chair Osami Wada(Kyoto Univ.) / / Takao Kuki(Kokushikan Univ.) / Kenjiro Nishikawa(Kagoshima Univ.) / Kenichi Tajima(Mitsubishi Electric) / Shinichiro Ohnuki(Nihon Univ.) / Akimasa Hirata(Nagoya Inst. of Tech.)
Secretary Osami Wada(AIST) / (Hitachi Automotive Systems) / Takao Kuki(Osaka Univ.) / Kenjiro Nishikawa(NMRI) / Kenichi Tajima(Panasonic) / Shinichiro Ohnuki(Tokyo Inst. of Tech.) / Akimasa Hirata(Muroran Inst. of Tech.)
Assistant Yoshiki Kayano(Univ. of Electro-Comm.) / Yusaku Katsube(Hitachi) / Chie Sasaki(Panasonic) / Yu-ichi Hayashi(Tohoku-gakuin Univ.) / Naoto Sekiya(Univ. of Yamanashi) / Satoshi Ono(Univ. of Electro-Comm.) / Atsushi Kezuka(ENRI) / Kenji Taguchi(Kitami Inst. of Tech.)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility / Technical Committee on Microwaves / Technical Committee on Electronics Simulation Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Image Rejection Type Ku-Band Direct RF Undersampling CMOS Receiver
Sub Title (in English)
Keyword(1) Digital RF
Keyword(2) RFIC
Keyword(3) CMOS
Keyword(4) Microwave circuit
Keyword(5) Sampling mixer
1st Author's Name Keita Norishima
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Tomokazu Koizumi
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Mizuki Motoyoshi
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
4th Author's Name Suguru Kameda
4th Author's Affiliation Tohoku University(Tohoku Univ.)
5th Author's Name Noriharu Suematsu
5th Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2016-10-21
Paper # EMCJ2016-79,MW2016-111,EST2016-75
Volume (vol) vol.116
Number (no) EMCJ-253,MW-254,EST-255
Page pp.pp.113-118(EMCJ), pp.113-118(MW), pp.113-118(EST),
#Pages 6
Date of Issue 2016-10-13 (EMCJ, MW, EST)