| Presentation | 2005-02-25 Experimental Evaluation for Low Coupling Gap-Filler using Null Control Tomihiko YOSHIDA, Kiyoshi KOBAYASHI, Kohei OHATA, Masazumi UEBA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To expand service areas of a future satellite communication network, this paper proposes a simple configuration and the low coupling gap-filler which re-transmits the signals in the same frequency as received. To prevent the signal divergence caused by the strong coupling between the receiving and transmitting antennas, this gap-filler adopts two transmitting antennas, and the transmitting antennas form a null toward the receiving antenna direction by controlling amplitude and phase of one transmitting antenna appropriately. Results of simulations and outdoor experiments show that the proposed gap-filler realizes the large suppression of coupling and is feasible. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Gap-Filler / Repeater / Re-Transmitting / Single Frequency Network / Coupling / Null-Control |
| Paper # | SAT2004-169 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2005/2/18(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) | Experimental Evaluation for Low Coupling Gap-Filler using Null Control |
| Sub Title (in English) | |
| Keyword(1) | Gap-Filler |
| Keyword(2) | Repeater |
| Keyword(3) | Re-Transmitting |
| Keyword(4) | Single Frequency Network |
| Keyword(5) | Coupling |
| Keyword(6) | Null-Control |
| 1st Author's Name | Tomihiko YOSHIDA |
| 1st Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation() |
| 2nd Author's Name | Kiyoshi KOBAYASHI |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Kohei OHATA |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Masazumi UEBA |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2005-02-25 |
| Paper # | SAT2004-169 |
| Volume (vol) | vol.104 |
| Number (no) | 671 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |