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Paper Abstract and Keywords
Presentation 2010-02-18 09:00
Dual-band Operation Bent-folded-Monopole Antenna
Ippei Kashiwagi, Masaki Nishio, Shuichi Obayashi, Hiroki Shoki (Toshiba Corp), Tasuku Morooka (Tsohiba Research Consulting Corp.) AP2009-184
Abstract (in Japanese) (See Japanese page) 
(in English) Antennas built in mobile terminals are required to archive small size and wide-band operation. Folded dipole/monopole antennas have been known as wide-band and higher input impedance characteristics compared to single wire antennas. We report a bent-folded-monopole antenna with dual-band operation at basic resonant frequency f1 and second frequency f2 where two times higher than the basic frequency f1. The top of the bent-folded-monopole antenna is connected to the ground through a capacitor, and an inductor is also embedded at the antenna. The capacitor shifts the f1, whereas the inductor adjusts only the f2, thus both of the operating frequencies of the proposed antenna can be designed almost independently. Electromagnetic simulation and measurement results are provided to examine the antenna operation. We also report an example of the antenna designed for GSM/UMTS/CDMA systems.
Keyword (in Japanese) (See Japanese page) 
(in English) Antenna / Folded-monopole antenna / dual-band / capacitor / inductor / GSM / UMTS /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 417, AP2009-184, pp. 1-6, Feb. 2010.
Paper # AP2009-184 
Date of Issue 2010-02-11 (AP) 
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 AP2009-184

Conference Information
Committee AP  
Conference Date 2010-02-18 - 2010-02-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Toshiba 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2010-02-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dual-band Operation Bent-folded-Monopole Antenna 
Sub Title (in English)  
Keyword(1) Antenna  
Keyword(2) Folded-monopole antenna  
Keyword(3) dual-band  
Keyword(4) capacitor  
Keyword(5) inductor  
Keyword(6) GSM  
Keyword(7) UMTS  
Keyword(8)  
1st Author's Name Ippei Kashiwagi  
1st Author's Affiliation Toshiba Corp (Toshiba Corp)
2nd Author's Name Masaki Nishio  
2nd Author's Affiliation Toshiba Corp (Toshiba Corp)
3rd Author's Name Shuichi Obayashi  
3rd Author's Affiliation Toshiba Corp (Toshiba Corp)
4th Author's Name Hiroki Shoki  
4th Author's Affiliation Toshiba Corp (Toshiba Corp)
5th Author's Name Tasuku Morooka  
5th Author's Affiliation Tsohiba Research Consulting Corp. (Tsohiba Research Consulting Corp.)
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Speaker Author-1 
Date Time 2010-02-18 09:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2009-184 
Volume (vol) vol.109 
Number (no) no.417 
Page pp.1-6 
#Pages 6 
Date of Issue 2010-02-11 (AP) 

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