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Paper Abstract and Keywords
Presentation 2018-06-22 13:50
The development of X band 2.8Gbps dual polarization downlink satellite communication
Tomoki Kaneko (Tokyo Univ.), Makoto Mita, Atsushi Tomiki, Hirobumi Saito (JAXA) SANE2018-15
Abstract (in Japanese) (See Japanese page) 
(in English) his paper describes the development of a 2.8Gbps X-band transmitter (XTX) and dual circularly polarized wave antenna. The communication standard of XTX is DVB-S2X. When we use 64APSK (coding rate = 11/15) with 300Msps symbol rate. This paper describes key points of ultra high speed transmitter such as power amplifier bias condition (AM-AM performance, AM-PM performance, third order distortion), heat transport (FPGA, DA converter). For realizing dual circularly polarized wave, we designed high cross polarization discrimination (XPD) antenna using ANSYS/HFSS finite element electromagnetic field software. The antenna is composed of septum type polarizer, and corrugated horn antenna. Measured XPD was higher than 37dB using polarization pattern method. We are trying to prepare for ground station. The ground station has 55dBi gain and 50K system noise.
Keyword (in Japanese) (See Japanese page) 
(in English) satellite communication / small satellite / DVB-S2X / X-band / XPD / transmitter / antenna / polarizer  
Reference Info. IEICE Tech. Rep., vol. 118, no. 105, SANE2018-15, pp. 13-18, June 2018.
Paper # SANE2018-15 
Date of Issue 2018-06-15 (SANE) 
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)
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Conference Information
Committee SANE  
Conference Date 2018-06-22 - 2018-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Tsukuba Space Center, JAXA 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Space applications symposium, Mission for Space Science, Satellite technology and General issue 
Paper Information
Registration To SANE 
Conference Code 2018-06-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The development of X band 2.8Gbps dual polarization downlink satellite communication 
Sub Title (in English)  
Keyword(1) satellite communication  
Keyword(2) small satellite  
Keyword(3) DVB-S2X  
Keyword(4) X-band  
Keyword(5) XPD  
Keyword(6) transmitter  
Keyword(7) antenna  
Keyword(8) polarizer  
1st Author's Name Tomoki Kaneko  
1st Author's Affiliation The University of Tokyo (Tokyo Univ.)
2nd Author's Name Makoto Mita  
2nd Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
3rd Author's Name Atsushi Tomiki  
3rd Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
4th Author's Name Hirobumi Saito  
4th Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
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Speaker Author-1 
Date Time 2018-06-22 13:50:00 
Presentation Time 25 minutes 
Registration for SANE 
Paper # SANE2018-15 
Volume (vol) vol.118 
Number (no) no.105 
Page pp.13-18 
#Pages 6 
Date of Issue 2018-06-15 (SANE) 

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