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Paper Abstract and Keywords
Presentation 2010-05-14 10:25
Broadband Design and Fabrication of Partially-Corporate Feed Double-Layer Waveguide Slot Antennas with Magnetic Wall Terminations due to Symmetrical Waveguide Connections
Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2010-27
Abstract (in Japanese) (See Japanese page) 
(in English) A double-layer partially-corporate waveguide to feed only two elements in series is introduced to a waveguide slot antenna to enhance the bandwidth of the gain. A PMC termination realized by symmetrical waveguide connection is newly proposed in the partially-corporate feed antenna. The termination distance in the last slot coupler with the PMC termination is reduced by half compared to the conventional PEC termination, and the degradation in sidelobe levels due to a large slot-free region is prevented. For the broadband design of a 16x16-element array with uniform excitation, the 4x4-element sub-array with the travelling-wave excitation and that with the standing-wave excitation are designed for comparison. The standing-wave fed 16x16-element antenna, which exhibits a larger bandwidth of reflection, is fabricated in the E-band by diffusion bonding of laminated thin copper plates which has advantages of high precision and high mass-productivity. As the measurement results, an antenna gain of 32.4 dBi and an antenna efficiency of 83.0% are achieved at the center frequency. The bandwidth of 1dB-down gain is 9.0%, where a broadband characteristic is achieved.
Keyword (in Japanese) (See Japanese page) 
(in English) waveguide slot antenna / double-layer / partially-corporate feed / broadband design / PMC termination / diffusion bonding / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 23, AP2010-27, pp. 75-80, May 2010.
Paper # AP2010-27 
Date of Issue 2010-05-06 (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 AP2010-27

Conference Information
Committee AP  
Conference Date 2010-05-13 - 2010-05-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Southeast Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2010-05-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Broadband Design and Fabrication of Partially-Corporate Feed Double-Layer Waveguide Slot Antennas with Magnetic Wall Terminations due to Symmetrical Waveguide Connections 
Sub Title (in English)  
Keyword(1) waveguide slot antenna  
Keyword(2) double-layer  
Keyword(3) partially-corporate feed  
Keyword(4) broadband design  
Keyword(5) PMC termination  
Keyword(6) diffusion bonding  
Keyword(7)  
Keyword(8)  
1st Author's Name Miao Zhang  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Jiro Hirokawa  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name Makoto Ando  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2010-05-14 10:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2010-27 
Volume (vol) vol.110 
Number (no) no.23 
Page pp.75-80 
#Pages 6 
Date of Issue 2010-05-06 (AP) 

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