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| Presentation | 2012-11-21 13:30 Design Method for GHz-Band Harmonics Treatment High Efficiency Power Amplifiers Using MHz-Band Active Harmonics Load-Pull System Ryo Ishikawa, Yoichiro Takayama, Kazuhiko Honjo (UEC)  MW2012-114 Link to ES Tech. Rep. Archives: MW2012-114 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For advanced wireless communication systems and wireless power transmission applications, many types of ampli ers have been reported, such as class-F, class-E, class-J, etc. All methods to improve efficiency result in shaping voltage and current waveforms in a transistor. The amplitudes and phases of harmonic components for both waveforms cannot be determined with harmonic impedance alone, since they depend on the speci c properties of the transistor. Thus, optimum load impedance exists for each transistor. Then, the optimum load impedance for a transistor without reactive parasitics is estimated in the MHz-band by using a simple active load-pull system. And, the optimum impedance outside the transistor in the GHz-band is estimated by considering the reactive parasitics. The procedure of this method is reported. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Microwave / Power amplifier / High efficiency / Harmonics tuning / Active load-pull / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 312, MW2012-114, pp. 1-6, Nov. 2012. | |
| Paper # | MW2012-114 | |
| Date of Issue | 2012-11-14 (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 | MW2012-114 Link to ES Tech. Rep. Archives: MW2012-114 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2012-11-21 - 2012-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2012-11-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design Method for GHz-Band Harmonics Treatment High Efficiency Power Amplifiers Using MHz-Band Active Harmonics Load-Pull System |
| Sub Title (in English) | |
| Keyword(1) | Microwave |
| Keyword(2) | Power amplifier |
| Keyword(3) | High efficiency |
| Keyword(4) | Harmonics tuning |
| Keyword(5) | Active load-pull |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryo Ishikawa |
| 1st Author's Affiliation | The University of Electro-Communications (UEC) |
| 2nd Author's Name | Yoichiro Takayama |
| 2nd Author's Affiliation | The University of Electro-Communications (UEC) |
| 3rd Author's Name | Kazuhiko Honjo |
| 3rd Author's Affiliation | The University of Electro-Communications (UEC) |
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| Speaker | 1 |
| Date Time | 2012-11-21 13:30:00 |
| Presentation Time | 30 |
| Registration for | MW |
| Paper # | IEICE-MW2012-114 |
| Volume (vol) | IEICE-112 |
| Number (no) | no.312 |
| Page | pp.1-6 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-MW-2012-11-14 |
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