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| Presentation | 2007-01-19 09:45 A 2.4-V Reference Voltage Operation InGaP-HBT MMIC Power Amplifier for CDMA Handsets Takao Moriwaki, Kazuya Yamamoto, Nobuyuki Ogawa, Takeshi Miura, Kosei Maemura, Teruyuki Shimura (Mitsubishi Electric) Link to ES Tech. Rep. Archives:  ED2006-226 MW2006-179 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes circuit design and measurement results of a newly developed InGaP/GaAs HBT MMIC power amplifier module (PA) which can operate with 2.4-V low reference (Vref) and supply voltages of its on-chip bias circuits. To achieve the low-Vref operation, the following two new circuit design techniques are incorporated into the IC: (i) two different kinds of bias feeding (current feed, and voltage-/current-feed) to AC-coupled power stages, and (ii) successful implementation of a diode linearizer built in the power stage. Measurement results at 900 MHz, a 3.5-V Vcc, and a 2.4-V Vref show that the PA meets J-/W-CDMA power and distortion specifications sufficiently over a wide temperature range from -10 to 90?C while keeping a low quiescent current of less than 65 mA. For J-CDMA modulation, the PA can deliver a 27.5-dBm Pout, a 40% PAE, and a -50-dBc ACPR, while a 28-dBm Pout, a 42% PAE, and a -42-dBc ACLR are achieved for W-CDMA modulation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | GaAs / Power amplifiers / CDMA / HBT / Low-Reference Voltage / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 459, ED2006-226, pp. 143-148, Jan. 2007. | |
| Paper # | ED2006-226 | |
| Date of Issue | 2007-01-10 (ED, MW) | |
| ISSN | Print edition: ISSN 0913-5685 | |
| 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 | Link to ES Tech. Rep. Archives: ED2006-226 MW2006-179 |
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| Conference Information | |
| Committee | MW ED |
| Conference Date | 2007-01-17 - 2007-01-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ED |
| Conference Code | 2007-01-MW-ED |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 2.4-V Reference Voltage Operation InGaP-HBT MMIC Power Amplifier for CDMA Handsets |
| Sub Title (in English) | |
| Keyword(1) | GaAs |
| Keyword(2) | Power amplifiers |
| Keyword(3) | CDMA |
| Keyword(4) | HBT |
| Keyword(5) | Low-Reference Voltage |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takao Moriwaki |
| 1st Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
| 2nd Author's Name | Kazuya Yamamoto |
| 2nd Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
| 3rd Author's Name | Nobuyuki Ogawa |
| 3rd Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
| 4th Author's Name | Takeshi Miura |
| 4th Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
| 5th Author's Name | Kosei Maemura |
| 5th Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
| 6th Author's Name | Teruyuki Shimura |
| 6th Author's Affiliation | Mitsubishi Electric (Mitsubishi Electric) |
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| Speaker | Author-1 |
| Date Time | 2007-01-19 09:45:00 |
| Presentation Time | 25 minutes |
| Registration for | ED |
| Paper # | ED2006-226, MW2006-179 |
| Volume (vol) | vol.106 |
| Number (no) | no.459(ED), no.460(MW) |
| Page | pp.143-148 |
| #Pages | 6 |
| Date of Issue | 2007-01-10 (ED, MW) |
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