| Presentation | 2013-04-25 Evaluation of the X-band High Speed Downlink Transmitter with GaN-HEMT amplifier for Nano Satellite Tomoya FUKAMI, Hiromi WATANABE, Atsushi TOMIKI, Naohiko IWAKIRI, Hirobumi SAITO, Shinichi NAKASUKA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently small satellites start playing important roles in earth observation missions. It, however, is true that small satellites have drawbacks of sensor resolutions and down link data rate. As a solution to the latter drawback, we have developed novel communications system for 320 Mbps down link with 16QAM for small satellites with 50 kg class. We developed a new 2 W class GaN-HEMT X-band amplifier with high efficiency and small distortion, digital filter and pre-distortion processing with relatively low clock frequency in FPGAs. This paper describes the transmitter design and evaluation result of the engineering model. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | nano satellite / satellite communication / X-band / GaN power amplifier / pre-distortion |
| Paper # | SANE2013-1 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 2013/4/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of the X-band High Speed Downlink Transmitter with GaN-HEMT amplifier for Nano Satellite |
| Sub Title (in English) | |
| Keyword(1) | nano satellite |
| Keyword(2) | satellite communication |
| Keyword(3) | X-band |
| Keyword(4) | GaN power amplifier |
| Keyword(5) | pre-distortion |
| 1st Author's Name | Tomoya FUKAMI |
| 1st Author's Affiliation | The University of Tokyo() |
| 2nd Author's Name | Hiromi WATANABE |
| 2nd Author's Affiliation | The University of Tokyo |
| 3rd Author's Name | Atsushi TOMIKI |
| 3rd Author's Affiliation | Japan Aerospace Exploration Agency(JAXA), Institute of Space and Astronautical Science(ISAS) |
| 4th Author's Name | Naohiko IWAKIRI |
| 4th Author's Affiliation | The University of Tokyo |
| 5th Author's Name | Hirobumi SAITO |
| 5th Author's Affiliation | Japan Aerospace Exploration Agency(JAXA), Institute of Space and Astronautical Science(ISAS) |
| 6th Author's Name | Shinichi NAKASUKA |
| 6th Author's Affiliation | The University of Tokyo |
| Date | 2013-04-25 |
| Paper # | SANE2013-1 |
| Volume (vol) | vol.113 |
| Number (no) | 16 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |