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Paper Abstract and Keywords
Presentation 2020-06-18 13:35
A Quad-Band Branched Monopole Antenna with Filters Suppressing Higher-Mode
Shingo Yamaura, Kengo Nishimoto, Yasuhiro Nishioka, Naofumi Yoneda (Mitsubishi Electric) AP2020-6
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a compact quad-band antenna with filters suppressing higher-mode. A quad-band is obtained by a simple structure consisting of branch-elements. Filters are loaded at the roots of low-band elements to suppress the higher-mode. The filters are located near the ground to adjust the parameters of the filters easily. First, operation principles of an ideal filter-loaded antenna are described. Next, a band-pass filter (BPF)-loaded antenna and a low-pass filter (LPF)-loaded antenna are compared. As a result, VSWR characteristic of the BPF-loaded antenna agrees with that of the ideal filter-loaded antenna. Last, it is clarified that desirable VSWR characteristic and filter-loss can be achieved by designing the filters with the suitable quality factor.
Keyword (in Japanese) (See Japanese page) 
(in English) Multiband / Branch-element / Lumped-element filter / Higher-mode / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 72, AP2020-6, pp. 1-6, June 2020.
Paper # AP2020-6 
Date of Issue 2020-06-11 (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)
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Conference Information
Committee AP  
Conference Date 2020-06-18 - 2020-06-18 
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 2020-06-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Quad-Band Branched Monopole Antenna with Filters Suppressing Higher-Mode 
Sub Title (in English)  
Keyword(1) Multiband  
Keyword(2) Branch-element  
Keyword(3) Lumped-element filter  
Keyword(4) Higher-mode  
1st Author's Name Shingo Yamaura  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Kengo Nishimoto  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Yasuhiro Nishioka  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Naofumi Yoneda  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2020-06-18 13:35:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2020-6 
Volume (vol) vol.120 
Number (no) no.72 
Page pp.1-6 
Date of Issue 2020-06-11 (AP) 

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