Paper Abstract and Keywords |
Presentation |
2017-03-03 09:25
Quadrature-modulation Envelope-pulse-width-modulation Transmission System Using Quadrature Polarized Waves Ryo Sakai, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2016-204 ICD2016-134 Link to ES Tech. Rep. Archives: MW2016-204 ICD2016-134 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper presents quantitative evaluation of power efficiency decrese by not satisfying the zero current switching (ZCS) condition occurring in a bi-level quadrature-modulation (QM) envelope-pulse-width-modulation (EPWM) transmitter. Evaluation of power efficiency decrease is done by changing Q value of the series resonance circuit inserted in power amplifier (PA). As a result, the power efficiency decreases as the Q value increases. In addition, QM EPWM transmission system using quadrature polarized waves is proposed to satisfy ZCS condition for high efficiency. Simulation including digital signal processing with the QM EPWM and microwave circuit simulation with two class-D PAs shows that the proposed transmission system can demodulate both siguma and deruta component, and can improve power efficiency of the PAs. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
transmitter / power amplifier / class-D / envelope pulse-width modulation / quadrature modulation / quadrature polarization / power-added efficiency / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 486, MW2016-204, pp. 89-94, March 2017. |
Paper # |
MW2016-204 |
Date of Issue |
2017-02-23 (MW, ICD) |
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 |
MW2016-204 ICD2016-134 Link to ES Tech. Rep. Archives: MW2016-204 ICD2016-134 |
Conference Information |
Committee |
MW ICD |
Conference Date |
2017-03-02 - 2017-03-03 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okayama Prefectural Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Integrated Circuit / Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2017-03-MW-ICD |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Quadrature-modulation Envelope-pulse-width-modulation Transmission System Using Quadrature Polarized Waves |
Sub Title (in English) |
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Keyword(1) |
transmitter |
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power amplifier |
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class-D |
Keyword(4) |
envelope pulse-width modulation |
Keyword(5) |
quadrature modulation |
Keyword(6) |
quadrature polarization |
Keyword(7) |
power-added efficiency |
Keyword(8) |
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1st Author's Name |
Ryo Sakai |
1st Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
2nd Author's Name |
Yohtaro Umeda |
2nd Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
3rd Author's Name |
Yusuke Kozawa |
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Tokyo University of Science (Tokyo Univ. of Science) |
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Speaker |
Author-1 |
Date Time |
2017-03-03 09:25:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2016-204, ICD2016-134 |
Volume (vol) |
vol.116 |
Number (no) |
no.486(MW), no.487(ICD) |
Page |
pp.89-94 |
#Pages |
6 |
Date of Issue |
2017-02-23 (MW, ICD) |
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