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Paper Abstract and Keywords
Presentation 2021-06-17 13:50
Prototype of Multi band orthogonal polarization and Angle MIMO antenna in cellular system
Masayuki Nakano, Yoshiaki Amano (KDDI Research, Inc) AP2021-21
Abstract (in Japanese) (See Japanese page) 
(in English) We devised a small, low-profile multi-band MIMO antenna for cellular band such as indoor base
stations that supports multiple frequency bands from 800MHz to 4.2GHz in 4G and 5G. Then, the effectiveness was confirmed by computer simulation and measurement in anechoic chamber room. For MIMO, we have realized 2 branches of orthogonally polarized MIMO below 2.6GHz and 4 branches by combining angular MIMO above 3.3GHz. Furthermore, the return loss, gain, and directivity were measured in the anechoic chamber. The correlation coefficient was 0.1 or less for 2 ports within the 3 GHz band and 4 ports above the 3 GHz band
Keyword (in Japanese) (See Japanese page) 
(in English) vertical polarization monopole antenna / horizontal polarization dipole antenna / low profile MIMO small antenna / in-vehicle antenna / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 65, AP2021-21, pp. 13-18, June 2021.
Paper # AP2021-21 
Date of Issue 2021-06-10 (AP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 AP2021-21

Conference Information
Committee AP  
Conference Date 2021-06-17 - 2021-06-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2021-06-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Prototype of Multi band orthogonal polarization and Angle MIMO antenna in cellular system 
Sub Title (in English)  
Keyword(1) vertical polarization monopole antenna  
Keyword(2) horizontal polarization dipole antenna  
Keyword(3) low profile MIMO small antenna  
Keyword(4) in-vehicle antenna  
1st Author's Name Masayuki Nakano  
1st Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc)
2nd Author's Name Yoshiaki Amano  
2nd Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc)
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Date Time 2021-06-17 13:50:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2021-21 
Volume (vol) IEICE-121 
Number (no) no.65 
Page pp.13-18 
#Pages IEICE-6 
Date of Issue IEICE-AP-2021-06-10 

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