Paper Abstract and Keywords |
Presentation |
2014-09-19 13:00
An RF front-end circuit for inter-band carrier aggregation Kunihiro Kawai (NTT DOCOMO), Mitsumasa Nakajima (NTT), Yuta Takagi, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2014-95 Link to ES Tech. Rep. Archives: MW2014-95 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes an RF front-end circuit for mobile terminals supporting inter-band carrier aggregation using two frequency bands. In order to reduce the insertion loss when two bands are simultaneously used, this RF front-end circuit employs impedance control circuits comprising LC-tank circuits with reactive elements. The LC-tank circuits followed by one duplexer makes the input impedance high at the passband of the other duplexer, which achieves the low insertion loss at the passband of the duplexers. The reactive elements help to match the impedances between LC-tank circuits and the following duplexers. Measured results of the proposed RF front-end circuit without duplexers verify its fundamental functionality. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
RF Front-end / Switches / Carrier aggregation / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 219, MW2014-95, pp. 55-58, Sept. 2014. |
Paper # |
MW2014-95 |
Date of Issue |
2014-09-11 (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 |
MW2014-95 Link to ES Tech. Rep. Archives: MW2014-95 |
Conference Information |
Committee |
AP MW |
Conference Date |
2014-09-18 - 2014-09-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo Institute of Technology, Ookayama Campus |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave and Millimeter-wave, Metamaterials, Antennas and Propagation, Student Session |
Paper Information |
Registration To |
MW |
Conference Code |
2014-09-AP-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An RF front-end circuit for inter-band carrier aggregation |
Sub Title (in English) |
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Keyword(1) |
RF Front-end |
Keyword(2) |
Switches |
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Carrier aggregation |
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1st Author's Name |
Kunihiro Kawai |
1st Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
2nd Author's Name |
Mitsumasa Nakajima |
2nd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
3rd Author's Name |
Yuta Takagi |
3rd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
4th Author's Name |
Hiroshi Okazaki |
4th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
5th Author's Name |
Shoichi Narahashi |
5th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
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Speaker |
Author-1 |
Date Time |
2014-09-19 13:00:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2014-95 |
Volume (vol) |
vol.114 |
Number (no) |
no.219 |
Page |
pp.55-58 |
#Pages |
4 |
Date of Issue |
2014-09-11 (MW) |
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