Paper Abstract and Keywords |
Presentation |
2017-09-21 14:00
High Frequency Analog Beam Forming by Frequency Control of Local Oscillator Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2017-68 Link to ES Tech. Rep. Archives: MW2017-68 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a novel configuration for a phased array antenna system (PAS) that achieves ultra-broadband transmission using millimeter waves for 5G. Since it is expected to employ an unprecedented number of antennas, the PAS is required to be compact and cost effective. Generally, the PAS employs phase shifters that are applied to the IF or RF transmission signal lines for beam forming. However, the phase shifter limits the bandwidth of the transmission signal due to the required accuracy of the phase adjustment. A PAS employing phase-controlled RF carriers is a promising configuration for broadband transmission. In the proposed configuration, RF carriers are obtained by frequency upconvertion of the phase-controlled local signals with a lower frequency. To confirm the feasibility of the proposed configuration, a two-branch PAS transmitter with phase-controlled RF carriers is configured and tested. Measurement results show that the phase-controlled local signals that have a frequency lower than that of the RF carriers can be used to control the phase difference between the transmitted RF signals. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
5G / Ultra-broadband transmission / array antenna / Beam forming / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 216, MW2017-68, pp. 1-4, Sept. 2017. |
Paper # |
MW2017-68 |
Date of Issue |
2017-09-14 (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 |
MW2017-68 Link to ES Tech. Rep. Archives: MW2017-68 |
Conference Information |
Committee |
AP MW |
Conference Date |
2017-09-21 - 2017-09-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Saitama University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave, Millimeter wave, Measurement, Antennas and Propagation |
Paper Information |
Registration To |
MW |
Conference Code |
2017-09-AP-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
High Frequency Analog Beam Forming by Frequency Control of Local Oscillator |
Sub Title (in English) |
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Keyword(1) |
5G |
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Ultra-broadband transmission |
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array antenna |
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Beam forming |
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1st Author's Name |
Atsushi Fukuda |
1st Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
2nd Author's Name |
Hiroshi Okazaki |
2nd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
3rd Author's Name |
Shoichi Narahashi |
3rd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
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Speaker |
Author-1 |
Date Time |
2017-09-21 14:00:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2017-68 |
Volume (vol) |
vol.117 |
Number (no) |
no.216 |
Page |
pp.1-4 |
#Pages |
4 |
Date of Issue |
2017-09-14 (MW) |
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