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Paper Abstract and Keywords
Presentation 2014-07-18 13:50
Self-Directed Beam Forming System with Low Loop Control for Broadband Communication Array Antenna
Mikoto Nakamura, Ta Tuan Thanh, Suguru Kameda, Noriharu Suematsu, Akinori Taira, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) MW2014-82 OPE2014-51 EST2014-43 MWP2014-40
Abstract (in Japanese) (See Japanese page) 
(in English) Self-directed beam forming system is to calculate phase difference from signals received at each element of the
array antennas with digital signal processing and estimate the direction of arrival of the signal, and form a main beam to the
direction. If we consider applying this method to broadband communication, the receiver is required to process broadband
signals as many as antenna elements, thus, the method is difficult to realize[1]. In this paper, we propose self-directed beam
forming system with low loop control. In this method, we calculate phase difference from only low frequency component of
the received signal and control beam forming. If we use the proposed method, self-directed beam forming system can be realized with reasonable performance ADCs (Analog-to-Digital Converter) and the DSP (Digital Signal Processor) in broadband communication. When the number of the antenna elements is n and bandwidth of low frequency component is 1/m of the received signal bandwidth, power consumption of the ADCs can be decreased to 1/n and the processing speed of the DSP can be decreased to 1/m. The proposed method is verified that the received signals can be phase shifted and added correctly by simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Beam forming / Array antenna / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 141, MW2014-82, pp. 203-208, July 2014.
Paper # MW2014-82 
Date of Issue 2014-07-10 (MW, OPE, EST, MWP) 
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 MW2014-82 OPE2014-51 EST2014-43 MWP2014-40

Conference Information
Committee MW OPE EMT MWP EST IEE-EMT  
Conference Date 2014-07-17 - 2014-07-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Muroran Inst. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Light wave & Electromagnetic Wave Workshop 
Paper Information
Registration To MW 
Conference Code 2014-07-MW-OPE-EMT-MWP-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Self-Directed Beam Forming System with Low Loop Control for Broadband Communication Array Antenna 
Sub Title (in English)  
Keyword(1) Beam forming  
Keyword(2) Array antenna  
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1st Author's Name Mikoto Nakamura  
1st Author's Affiliation Tohoku Univercity (Tohoku Univ.)
2nd Author's Name Ta Tuan Thanh  
2nd Author's Affiliation Tohoku Univercity (Tohoku Univ.)
3rd Author's Name Suguru Kameda  
3rd Author's Affiliation Tohoku Univercity (Tohoku Univ.)
4th Author's Name Noriharu Suematsu  
4th Author's Affiliation Tohoku Univercity (Tohoku Univ.)
5th Author's Name Akinori Taira  
5th Author's Affiliation Tohoku Univercity (Tohoku Univ.)
6th Author's Name Tadashi Takagi  
6th Author's Affiliation Tohoku Univercity (Tohoku Univ.)
7th Author's Name Kazuo Tsubouchi  
7th Author's Affiliation Tohoku Univercity (Tohoku Univ.)
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Speaker Author-1 
Date Time 2014-07-18 13:50:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2014-82, OPE2014-51, EST2014-43, MWP2014-40 
Volume (vol) vol.114 
Number (no) no.141(MW), no.142(OPE), no.143(EST), no.144(MWP) 
Page pp.203-208 
#Pages 6 
Date of Issue 2014-07-10 (MW, OPE, EST, MWP) 

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