| Presentation | 2017-08-02 Multi-carrier Transmission Characteristics of All-Digital Low-IF Transmitter Using Weber-Type Image Suppression Method Takumi Kamo, Yohtaro Umeda, Yusuke Kozawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, multicarrier transmission is performed by using a bandpass type (BP) ΔΣ modulator in an orthogonal modulation type (QM) envelope pulse width modulation (EPWM) transmitter. By forming a plurality of frequency zero points of the noise transfer function of the ΔΣ modulator, it is possible to perform noise shaping in a plurality of frequency bands, and multi-carrier transmission becomes possible. We adopted Low-IF method using Weber method as image signal suppression method, and generated multiple IF signals as multicarrier transmitter. This transmitter is evaluated by combining digital signal processing simulation with QM-BPEPWM and microwave circuit simulation with H bridge Class D power amplifier. As a result, power efficiency and modulation accuracy equivalent to that of the conventional QM-EPWM transmitter were obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | transmitter / quadrature-modulation envelope pulse width modulation / ΔΣ modulator / Low-IF / multicarrier |
| Paper # | SDM2017-47,ICD2017-35 |
| Date of Issue | 2017-07-24 (SDM, ICD) |
| Conference Information | |
| Committee | SDM / ICD / ITE-IST |
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| Conference Date | 2017/7/31(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido-Univ. Multimedia Education Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low voltage/low power techniques, novel devices, circuits, and applications |
| Chair | Tatsuya Kunikiyo(Renesas) / Hideto Hidaka(Renesas) / Shigetoshi Sugawa(Tohoku Univ.) |
| Vice Chair | Takahiro Shinada(Tohoku Univ.) / Makoto Nagata(Kobe Univ.) / Takayuki Hamamoto(Tokyo University of Science) / Hiroshi Ohtake(NHK) |
| Secretary | Takahiro Shinada(Tohoku Univ.) / Makoto Nagata(Renesas) / Takayuki Hamamoto(Univ. of Tokyo) / Hiroshi Ohtake(Panasonic) |
| Assistant | Hiroya Ikeda(Shizuoka Univ.) / Tetsu Morooka(TOSHIBA MEMORY) / Masanori Natsui(Tohoku Univ.) / Masatoshi Tsuge(Socionext) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Silicon Device and Materials / Technical Committee on Integrated Circuits and Devices / Technical Group on Information Sensing Technologies |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multi-carrier Transmission Characteristics of All-Digital Low-IF Transmitter Using Weber-Type Image Suppression Method |
| Sub Title (in English) | |
| Keyword(1) | transmitter |
| Keyword(2) | quadrature-modulation envelope pulse width modulation |
| Keyword(3) | ΔΣ modulator |
| Keyword(4) | Low-IF |
| Keyword(5) | multicarrier |
| 1st Author's Name | Takumi Kamo |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Yohtaro Umeda |
| 2nd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 3rd Author's Name | Yusuke Kozawa |
| 3rd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2017-08-02 |
| Paper # | SDM2017-47,ICD2017-35 |
| Volume (vol) | vol.117 |
| Number (no) | SDM-166,ICD-167 |
| Page | pp.pp.117-122(SDM), pp.117-122(ICD), |
| #Pages | 6 |
| Date of Issue | 2017-07-24 (SDM, ICD) |