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Paper Abstract and Keywords
Presentation 2007-01-26 15:40
Aperiodic array antennas composed of Penrose tiles.
Motoi Fujikata, Takashi Katagi, Shin-ichi Betsudan, Motoo Mizusawa, Tetsuo Hirota, Keisuke Noguchi (Kanazawa Inst. of Tech.) AP2006-135
Abstract (in Japanese) (See Japanese page) 
(in English) To reduce the number of phase shifter, an array antenna is divided into subarrays, and one phase shifter is attached to each subarray. In this case grating lobes will appear when the beam is scanned because of the periodicity of the array. Random arrangement of element antennas is effective to prevent grating lobes. But to change the size or shape of each subarray or to change the number of elements in each subarray requires many kinds of feed circuit for an array and not easy to fabricate. Penrose tiles are composed of two types, and cover a plane continuously without a gap. Using each tile as a subarray, it needs only two different feed circuits and element antennas are arranged aperiodic, resulting decrease of grating lobes when the beam is scanned.
Keyword (in Japanese) (See Japanese page) 
(in English) aperiodic array antennas / Penrose tile / subarray / grating lobe / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 491, AP2006-135, pp. 149-154, Jan. 2007.
Paper # AP2006-135 
Date of Issue 2007-01-18 (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 AP2006-135

Conference Information
Committee AP  
Conference Date 2007-01-25 - 2007-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukui Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2007-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Aperiodic array antennas composed of Penrose tiles. 
Sub Title (in English)  
Keyword(1) aperiodic array antennas  
Keyword(2) Penrose tile  
Keyword(3) subarray  
Keyword(4) grating lobe  
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1st Author's Name Motoi Fujikata  
1st Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
2nd Author's Name Takashi Katagi  
2nd Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
3rd Author's Name Shin-ichi Betsudan  
3rd Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
4th Author's Name Motoo Mizusawa  
4th Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
5th Author's Name Tetsuo Hirota  
5th Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
6th Author's Name Keisuke Noguchi  
6th Author's Affiliation Kanazawa Institute of Technology (Kanazawa Inst. of Tech.)
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Speaker Author-1 
Date Time 2007-01-26 15:40:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2006-135 
Volume (vol) vol.106 
Number (no) no.491 
Page pp.149-154 
#Pages 6 
Date of Issue 2007-01-18 (AP) 

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