| Presentation | 2011-05-10 A novel phase drift compensation method of distributed, array antennas for earth station onboard vessels and Its experiment Kouhei SUZAKI, Yoshinori SUZUKI, Kiyoshi KOBAYSHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a concept of distributed array antenna and its phase drift compensation method. The proposed distributed array antenna consists of multiple tracking antennas and an array controller. The array controller controls phase of each antenna's transmitted signal appropriately to realize spatially in-phase combining. Although frequencies of all antennas are synchronized using a common reference oscillator, output signal's phase of each antenna is independently drifted. Due to the phase drift, distributed array antenna's E.I.R.P decreases and considerable pointing error occurs. To detect and compensate the phase drift, we propose to obtain low frequency feedback signal by mixing frequency-multiplied version of input IF signal to each antenna and Ku-band output signal, As a result of experimental evaluation, the phase drift was suppressed below 10 degrees which meets a target value. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distributed array antenna / phase drift compensation / Mobile satellite communication system / ESV((Earth Stations on board Vessels) |
| Paper # | SAT2011-3 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2011/5/2(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) | A novel phase drift compensation method of distributed, array antennas for earth station onboard vessels and Its experiment |
| Sub Title (in English) | |
| Keyword(1) | Distributed array antenna |
| Keyword(2) | phase drift compensation |
| Keyword(3) | Mobile satellite communication system |
| Keyword(4) | ESV((Earth Stations on board Vessels) |
| 1st Author's Name | Kouhei SUZAKI |
| 1st Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation() |
| 2nd Author's Name | Yoshinori SUZUKI |
| 2nd Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation |
| 3rd Author's Name | Kiyoshi KOBAYSHI |
| 3rd Author's Affiliation | NTT Access Network Service System Laboratories, NTT Corporation |
| Date | 2011-05-10 |
| Paper # | SAT2011-3 |
| Volume (vol) | vol.111 |
| Number (no) | 24 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |