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Paper Abstract and Keywords
Presentation 2023-08-31 10:55
A Novel Feeding Method for Broadband Series-fed Omnidirectional Antennas
Sirao Wu, Junyi Xu, Qiang Chen (Tohoku Univ.) AP2023-67
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a novel omnidirectional horizontally polarized (OHP) dipole antenna array with broadband designed for the Sub-6 GHz band. Inspired by the feeding method of turnstile antenna, the omnidirectional radiation of the series-fed antenna is achieved by designing the arrangement position of the dipole unit and finally feeding it with one port. The design features six pairs of modified cross dipoles arranged along a parallel feeding wire transmission line, with six dipole elements positioned in two orthogonal planes. The antenna array is fabricated by 1 mm diameter copper wire and fed by a coaxial structure at the center of the array. The maximum cross-section area is 3.17×0.5l2 (at the designed frequency of 4 GHz), enabling easy implementation within a cylinder. Measurements and simulations have been conducted to validate the antenna. The 10 dB impedance bandwidth is 26.89%, ranging from 3.83 to 5.02 GHz, with a measured peak realized gain (RG) of 7.44 dBi. Furthermore, the measured 1 dB gain bandwidth of the proposed antenna is 1 GHz (22%), spanning from 4 to 5 GHz. The combination of high gain, wide bandwidth, omnidirectional radiation, and cost-effectiveness renders this antenna array suitable for base station applications.
Keyword (in Japanese) (See Japanese page) 
(in English) Omnidirectional patterns / Series-fed dipole array / Broadband / Sub-6 band / Base station / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 173, AP2023-67, pp. 7-10, Aug. 2023.
Paper # AP2023-67 
Date of Issue 2023-08-24 (AP) 
ISSN 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 AP2023-67

Conference Information
Committee AP  
Conference Date 2023-08-31 - 2023-09-01 
Place (in Japanese) (See Japanese page) 
Place (in English) KOZO KEIKAKU ENGINEERING Inc. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2023-08-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Feeding Method for Broadband Series-fed Omnidirectional Antennas 
Sub Title (in English)  
Keyword(1) Omnidirectional patterns  
Keyword(2) Series-fed dipole array  
Keyword(3) Broadband  
Keyword(4) Sub-6 band  
Keyword(5) Base station  
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1st Author's Name Sirao Wu  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Junyi Xu  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Qiang Chen  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2023-08-31 10:55:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2023-67 
Volume (vol) vol.123 
Number (no) no.173 
Page pp.7-10 
#Pages 4 
Date of Issue 2023-08-24 (AP) 

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