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| Presentation | 2014-11-21 10:55 Quadrature-modulation Transmitter with Tri-level Delta-sigma Modulation for Generating Bi-level EPWM Signal Takashi Noda, Wataru Someya, Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science)  MW2014-139 Link to ES Tech. Rep. Archives: MW2014-139 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents a quadrature-modulation (QM) envelope-pulse-width-modulation (EPWM) transmitter with delta-sigma tri-level modulators to generate a bi-level EPWM signal for representing the off state between burst signals. This bi-level transmitter is suitable for directly connecting to a single-ended antenna and advantageous in small size and high power efficiency due to the omission of a transformer used in the conventional tri-level transmitters with two power amplifiers (PAs) in H-bridge configuration. Although simulation including digital signal processing with the QM EPWM and microwave circuit simulation with the power amplifier using n-MOSFETs shows that the error vector magnitude (EVM) of the proposed transmitter is slightly worse than the conventional transmitter, the proposed transmitter shows substantially good EVM performance. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | transmitter / power amplifier / class-D / envelope pulse-width modulation / quadrature modulation / error vector magnitude / coding efficiency / power-added efficiency | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 318, MW2014-139, pp. 83-88, Nov. 2014. | |
| Paper # | MW2014-139 | |
| Date of Issue | 2014-11-13 (MW) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MW2014-139 Link to ES Tech. Rep. Archives: MW2014-139 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2014-11-20 - 2014-11-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2014-11-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Quadrature-modulation Transmitter with Tri-level Delta-sigma Modulation for Generating Bi-level EPWM Signal |
| Sub Title (in English) | |
| Keyword(1) | transmitter |
| Keyword(2) | power amplifier |
| Keyword(3) | class-D |
| Keyword(4) | envelope pulse-width modulation |
| Keyword(5) | quadrature modulation |
| Keyword(6) | error vector magnitude |
| Keyword(7) | coding efficiency |
| Keyword(8) | power-added efficiency |
| 1st Author's Name | Takashi Noda |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Wataru Someya |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 3rd Author's Name | Yoshiharu Iikura |
| 3rd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 4th Author's Name | Yohtaro Umeda |
| 4th Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 5th Author's Name | Yusuke Kozawa |
| 5th Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
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| Speaker | Author-1 |
| Date Time | 2014-11-21 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2014-139 |
| Volume (vol) | vol.114 |
| Number (no) | no.318 |
| Page | pp.83-88 |
| #Pages | 6 |
| Date of Issue | 2014-11-13 (MW) |
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