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| Presentation | 2020-12-10 13:15 A 3.9-GHz-Band GaN HEMT Outphasing Power Amplifier with Reactance-Compensation Compact Combiner Ryoichi Ogasawara, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC)  MW2020-71 Link to ES Tech. Rep. Archives: MW2020-71 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, the need for large-capacity communications has increased in wireless communication systems due to the increase in communication traffic. Since wideband digitally modulated signals with a large peak-to-average power ratio (PAPR) are used in large-capacity wireless communication, power amplifiers with high- efficiency over a wide dynamic range are required. In this report, we have proposed, fabricated, and evaluated an outphasing amplifier with a small combiner circuit. The small combiner circuit is designed based on series load compensation and consists of only one inductor and one capacitor without quarter-wavelength transmission lines. In the matching circuit design, dual-power-level optimization was performed near the back-off and saturation in order to expand the dynamic range. The fabricated GaN HEMT outphasing power amplifier showed a saturated output power of 37 dBm and a maximum drain efficiency of 77 % at 3.92 GHz. Furthermore, a drain efficiency of over 50 % was obtained within a 7 dB output back-off. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | power amplifiers / high efficiency / outphasing / wide dynamic range / load modulation / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 280, MW2020-71, pp. 1-6, Dec. 2020. | |
| Paper # | MW2020-71 | |
| Date of Issue | 2020-12-03 (MW) | |
| ISSN | 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 | MW2020-71 Link to ES Tech. Rep. Archives: MW2020-71 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2020-12-10 - 2020-12-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2020-12-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 3.9-GHz-Band GaN HEMT Outphasing Power Amplifier with Reactance-Compensation Compact Combiner |
| Sub Title (in English) | |
| Keyword(1) | power amplifiers |
| Keyword(2) | high efficiency |
| Keyword(3) | outphasing |
| Keyword(4) | wide dynamic range |
| Keyword(5) | load modulation |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryoichi Ogasawara |
| 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 | Ryo Ishikawa |
| 3rd Author's Affiliation | The University of Electro-Communications (UEC) |
| 4th Author's Name | Kazuhiko Honjo |
| 4th Author's Affiliation | The University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2020-12-10 13:15:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2020-71 |
| Volume (vol) | vol.120 |
| Number (no) | no.280 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2020-12-03 (MW) |
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