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| Presentation | 2009-09-25 17:15 [Special Talk] Anlysis and Design of a Dynamic Predistorter for WCDMA Handsets Power Amplifier Shingo Yamanouchi, Yuuichi Aoki, Kazuaki Kunihiro (NEC), Tomohisa Hirayama (NEC Electronics Corp.), Takashi Miyazaki (NEC), Hikaru Hida (NEC Electronics Corp.)  MW2009-90 Link to ES Tech. Rep. Archives: MW2009-90 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents a dynamic predistorter (PD), which linearizes dynamic AM-AM and AM-PM of a wide-band CDMA (WCDMA) handset power amplifier (PA). The dynamic PD allows an ACPR improvement of 15.7 dB, which is superior to conventional PDs that linearize static AM-AM and AM-PM. The third-order inter-modulation distortion (IMD3) amplitude and phase of the dynamic PD are designed by load impedance at RF fundamental band and baseband, respectively. Dynamic AM-AM and AM-PM of the dynamic PD are also designed through the IMD3 design. The fabricated two-stage InGaP/GaAs HBT PA module with the dynamic PD exhibited an ACPR of -40 dBc and a PAE of 50% at an average output power of 26.8 dBm with a quiescent current of 20 mA. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Adjacent channel leakage power ratio (ACPR) / intermodulation distortion (IMD) / linearization / nonlinear distortion / power amplifiers (PAs) / predistorter (PD) / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 210, MW2009-90, pp. 93-98, Sept. 2009. | |
| Paper # | MW2009-90 | |
| Date of Issue | 2009-09-18 (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 | MW2009-90 Link to ES Tech. Rep. Archives: MW2009-90 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2009-09-25 - 2009-09-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2009-09-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Anlysis and Design of a Dynamic Predistorter for WCDMA Handsets Power Amplifier |
| Sub Title (in English) | |
| Keyword(1) | Adjacent channel leakage power ratio (ACPR) |
| Keyword(2) | intermodulation distortion (IMD) |
| Keyword(3) | linearization |
| Keyword(4) | nonlinear distortion |
| Keyword(5) | power amplifiers (PAs) |
| Keyword(6) | predistorter (PD) |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shingo Yamanouchi |
| 1st Author's Affiliation | NEC Corporation (NEC) |
| 2nd Author's Name | Yuuichi Aoki |
| 2nd Author's Affiliation | NEC Corporation (NEC) |
| 3rd Author's Name | Kazuaki Kunihiro |
| 3rd Author's Affiliation | NEC Corporation (NEC) |
| 4th Author's Name | Tomohisa Hirayama |
| 4th Author's Affiliation | NEC Electronics Corporation (NEC Electronics Corp.) |
| 5th Author's Name | Takashi Miyazaki |
| 5th Author's Affiliation | NEC Corporation (NEC) |
| 6th Author's Name | Hikaru Hida |
| 6th Author's Affiliation | NEC Electronics Corporation (NEC Electronics Corp.) |
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| Speaker | Author-1 |
| Date Time | 2009-09-25 17:15:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2009-90 |
| Volume (vol) | vol.109 |
| Number (no) | no.210 |
| Page | pp.93-98 |
| #Pages | 6 |
| Date of Issue | 2009-09-18 (MW) |
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