Paper Abstract and Keywords |
Presentation |
2007-10-25 13:55
Wide-band analog predistortion for UHF amplifiers
-- Compensation of IM in a Terrestrial Digital Broadcasting MCPA -- Ryota Iwai, Hiroshi Matsubara, Toshio Nojima (Hokkaido Univ.) EMCJ2007-60 MW2007-107 Link to ES Tech. Rep. Archives: MW2007-107 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A novel wide-band linearization technique for Terrestrial Digital Broadcasting multi-channel power amplifiers (MCPA) is proposed. This technique is based upon a cuber predistortion technique, which can realize more compact amplifiers and lower power consumption. Firstly, to achieve wide-band compensation performance, detailed theoretical investigations using complex power series are carried out. To effectively improve MCPA’s 3rd order distortion, a 3rd order distortion generator is designed to have a flat frequency response. Secondly, to examine applicability of the wide-band linearization technique, 2-tone characteristics are measured. The results show that the intermodulation distortion of the MCPA is improved by more than 10 dB over a 200 MHz range. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
power amplifier / linearizer / predistortion / Terrestrial Digital Broadcasting / ISDB-T / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 279, MW2007-107, pp. 41-46, Oct. 2007. |
Paper # |
MW2007-107 |
Date of Issue |
2007-10-18 (EMCJ, 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 |
EMCJ2007-60 MW2007-107 Link to ES Tech. Rep. Archives: MW2007-107 |
Conference Information |
Committee |
EMCJ MW |
Conference Date |
2007-10-25 - 2007-10-26 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
MW |
Conference Code |
2007-10-EMCJ-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Wide-band analog predistortion for UHF amplifiers |
Sub Title (in English) |
Compensation of IM in a Terrestrial Digital Broadcasting MCPA |
Keyword(1) |
power amplifier |
Keyword(2) |
linearizer |
Keyword(3) |
predistortion |
Keyword(4) |
Terrestrial Digital Broadcasting |
Keyword(5) |
ISDB-T |
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1st Author's Name |
Ryota Iwai |
1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
2nd Author's Name |
Hiroshi Matsubara |
2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
3rd Author's Name |
Toshio Nojima |
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Hokkaido University (Hokkaido Univ.) |
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Speaker |
Author-1 |
Date Time |
2007-10-25 13:55:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
EMCJ2007-60, MW2007-107 |
Volume (vol) |
vol.107 |
Number (no) |
no.278(EMCJ), no.279(MW) |
Page |
pp.41-46 |
#Pages |
6 |
Date of Issue |
2007-10-18 (EMCJ, MW) |
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