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| Presentation | 2009-08-04 13:50 On Evaluation Index of Power Efficiency for Transmitter Architecture with Amplitude-Modulated Final Stage Amplifier -- Power Added Efficiency, Drain/Anode Efficiency, or Anything Suitable? -- Makoto Taromaru, Satoshi Tsukamoto, Keizo Inagaki, Kazuto Yano, Masazumi Ueba (ATR)  RCS2009-102 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A new power efficiency index for RF (radio frequency) power amplifiers is proposed. These amplifiers studied are saturating ones with class-B/C operation and modulated by envelope/amplitude signal; they are suitable for OFDM or multi-level QAM modulation transmitters that are getting more and more widely used for recent wireless communications and broadcasting systems. For those systems usually, class-A linear amplifiers are used with large back-off for the purpose of enough modulation accuracy and spurious characteristics. On the other hand, the amplifiers that are modulated by envelope/amplitude signal are recently being studied. However, a good index of power efficiency for that kind of amplifiers has not been known commonly. This report discusses the problem of conventional indexes, power adding efficiency, for examples, and studies the suitable indexes for the amplifiers. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | power amplifier / efficiency / EER / EPWM / EDSM / envelope / PAPR / modulation | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 164, RCS2009-102, pp. 143-146, Aug. 2009. | |
| Paper # | RCS2009-102 | |
| Date of Issue | 2009-07-27 (RCS) | |
| 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 | RCS2009-102 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2009-08-03 - 2009-08-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Equalization, Multihop Systems, Resource Control, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2009-08-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On Evaluation Index of Power Efficiency for Transmitter Architecture with Amplitude-Modulated Final Stage Amplifier |
| Sub Title (in English) | Power Added Efficiency, Drain/Anode Efficiency, or Anything Suitable? |
| Keyword(1) | power amplifier |
| Keyword(2) | efficiency |
| Keyword(3) | EER |
| Keyword(4) | EPWM |
| Keyword(5) | EDSM |
| Keyword(6) | envelope |
| Keyword(7) | PAPR |
| Keyword(8) | modulation |
| 1st Author's Name | Makoto Taromaru |
| 1st Author's Affiliation | ATR Wave Engineering Laboratories (ATR) |
| 2nd Author's Name | Satoshi Tsukamoto |
| 2nd Author's Affiliation | ATR Wave Engineering Laboratories (ATR) |
| 3rd Author's Name | Keizo Inagaki |
| 3rd Author's Affiliation | ATR Wave Engineering Laboratories (ATR) |
| 4th Author's Name | Kazuto Yano |
| 4th Author's Affiliation | ATR Wave Engineering Laboratories (ATR) |
| 5th Author's Name | Masazumi Ueba |
| 5th Author's Affiliation | ATR Wave Engineering Laboratories (ATR) |
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| Speaker | Author-1 |
| Date Time | 2009-08-04 13:50:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2009-102 |
| Volume (vol) | vol.109 |
| Number (no) | no.164 |
| Page | pp.143-146 |
| #Pages | 4 |
| Date of Issue | 2009-07-27 (RCS) |
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