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| Presentation | 2017-04-21 09:30 A Study on 12/21-GHz Dual-circularly Polarized Feed Antenna for Satellite Broadcasting Reception Masafumi Nagasaka, Susumu Nakazawa, Atsushi Iwasaki, Shoji Tanaka (NHK)  AP2017-12 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | NHK started test satellite broadcasting of UHDTV by using BS-17 transponder in August 2016, and practical broadcasting will begin in 2018. Test broadcasting is provided in the 12-GHz (11.7 to 12.75 GHz) band by using right-hand circular polarization. For practical broadcasting, multiple UHDTV programs will be provided using left-hand circular polarization in the same frequency band. We have also been studying a satellite broadcasting using the 21-GHz (21.4 to 22.0 GHz) band for 3D television, and so on. Therefore, we designed a 12/21-GHz dual-circularly polarized feed antenna composed of two 2 × 2 microstrip antenna arrays to receive these satellite broadcasting services. Simulation results showed that the VSWR of the 12-GHz and 21-GHz bands were 1.2 and 1.4, respectively. We also calculated the radiation pattern of a 45-cm reflector antenna with the designed feed. The aperture efficiency was 66% in the 12-GHz band and 56% in the 21-GHz band. The XPD of the reflector antenna was more than 31 dB. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite Broadcasting / 12-GHz band / 21-GHz band / Circularly Polarized Antenna / Microstrip Antenna / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 2, AP2017-12, pp. 59-64, April 2017. | |
| Paper # | AP2017-12 | |
| Date of Issue | 2017-04-13 (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 | AP2017-12 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2017-04-20 - 2017-04-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka university |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2017-04-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on 12/21-GHz Dual-circularly Polarized Feed Antenna for Satellite Broadcasting Reception |
| Sub Title (in English) | |
| Keyword(1) | Satellite Broadcasting |
| Keyword(2) | 12-GHz band |
| Keyword(3) | 21-GHz band |
| Keyword(4) | Circularly Polarized Antenna |
| Keyword(5) | Microstrip Antenna |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masafumi Nagasaka |
| 1st Author's Affiliation | Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name | Susumu Nakazawa |
| 2nd Author's Affiliation | Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name | Atsushi Iwasaki |
| 3rd Author's Affiliation | Japan Broadcasting Corporation (NHK) |
| 4th Author's Name | Shoji Tanaka |
| 4th Author's Affiliation | Japan Broadcasting Corporation (NHK) |
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| Speaker | Author-1 |
| Date Time | 2017-04-21 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2017-12 |
| Volume (vol) | vol.117 |
| Number (no) | no.2 |
| Page | pp.59-64 |
| #Pages | 6 |
| Date of Issue | 2017-04-13 (AP) |
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