| Presentation | 2010-08-27 Excitation Condition of Array-Fed Reflector Antennas for 100-Beam-Class Multibeam Communications Satellite Yoshiyuki FUJINO, Naokazu HAMAMOTO, Amane MIURA, Teruaki ORIKASA, Ryutaro SUZUKI, Shin-ichi YAMAMOTO, Yoshio INASAWA, Izuru NAITO, Masahiko FUNADA, Naoyuki NATORI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Mobile satellite communications systems using 100-beam-class multibeam on-board antenna have been proposed and some of them are already in operation. Such systems can concentrate the resource, such as bandwidth, power, etc., on a specific beam. Therefore, these are effective for emergency operation under natural disaster. For such kind of the on-board antennas, size and power consumption are important to install the antenna in the satellite. In this paper, we study a tradeoff on the excitation condition of the on-board antenna from the view point of size and power consumption. For that purpose, the size is evaluated by the element number of the feed-array. The power consumption is evaluated by that of high power amplifiers (HPAs) connected with the elements, because the power consumption of HPAs dominates that of the satellite payload. In the case of variable amplitude excitation of feed array, the HPAs of some types of output power are necessary. The power consumption of the HPAs can be reduced compared with the case of uniform amplitude excitation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multibeam / On-board Antenna / Array-fed Reflector Antenna / Feed Array / Power Consumption / High Power Amplifier |
| Paper # | SAT2010-36 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2010/8/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Excitation Condition of Array-Fed Reflector Antennas for 100-Beam-Class Multibeam Communications Satellite |
| Sub Title (in English) | |
| Keyword(1) | Multibeam |
| Keyword(2) | On-board Antenna |
| Keyword(3) | Array-fed Reflector Antenna |
| Keyword(4) | Feed Array |
| Keyword(5) | Power Consumption |
| Keyword(6) | High Power Amplifier |
| 1st Author's Name | Yoshiyuki FUJINO |
| 1st Author's Affiliation | National Institute of Information and Communications Technology() |
| 2nd Author's Name | Naokazu HAMAMOTO |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology |
| 3rd Author's Name | Amane MIURA |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology |
| 4th Author's Name | Teruaki ORIKASA |
| 4th Author's Affiliation | National Institute of Information and Communications Technology |
| 5th Author's Name | Ryutaro SUZUKI |
| 5th Author's Affiliation | National Institute of Information and Communications Technology |
| 6th Author's Name | Shin-ichi YAMAMOTO |
| 6th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 7th Author's Name | Yoshio INASAWA |
| 7th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 8th Author's Name | Izuru NAITO |
| 8th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 9th Author's Name | Masahiko FUNADA |
| 9th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 10th Author's Name | Naoyuki NATORI |
| 10th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| Date | 2010-08-27 |
| Paper # | SAT2010-36 |
| Volume (vol) | vol.110 |
| Number (no) | 174 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |