Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2026-03-19 11:45
Design of a Radial Line Curl Array Antenna as a Primary Radiator for Low-Profile Mechanical Beam Steering Transmitarray
Gen Nakayama, Takashi Tomura (Science Tokyo) AP2025-235
Abstract (in Japanese) (See Japanese page) 
(in English) In a transmitarray (TA) beam scanning system utilizing the translation of a primary radiator, we design a beam scanning antenna system that features (i) two-dimensional scanning, (ii) continuous scanning, (iii) wide-angle scanning performance in the range of ±70 degrees, and (iv) a low-profile configuration. We design a Gaussian beam radiating radial line curl array (RLCA) antenna and use it as the primary radiator for the TA system. The proposed antenna system has a system height of 1.53 λ₀, achieving a significantly lower profile compared to conventional systems. Analysis of a one-dimensional approximate model showed a scan range of ±70 deg. or more, with scan losses of 0.65 dB at a 30-deg. orientation and 4.16 dB at a 60-deg. orientation.
Keyword (in Japanese) (See Japanese page) 
(in English) Transmitarray antenna / Mechanical beam steering / Gaussian beam / Radial line curl array antenna / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 419, AP2025-235, pp. 59-64, March 2026.
Paper # AP2025-235 
Date of Issue 2026-03-11 (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 AP2025-235

Conference Information
Committee AP  
Conference Date 2026-03-18 - 2026-03-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Matsumoto Chamber of Commerce and Industry 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2026-03-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of a Radial Line Curl Array Antenna as a Primary Radiator for Low-Profile Mechanical Beam Steering Transmitarray 
Sub Title (in English)  
Keyword(1) Transmitarray antenna  
Keyword(2) Mechanical beam steering  
Keyword(3) Gaussian beam  
Keyword(4) Radial line curl array antenna  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Gen Nakayama  
1st Author's Affiliation Institute of Science Tokyo (Science Tokyo)
2nd Author's Name Takashi Tomura  
2nd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2026-03-19 11:45:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2025-235 
Volume (vol) vol.125 
Number (no) no.419 
Page pp.59-64 
#Pages 6 
Date of Issue 2026-03-11 (AP) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan