| Presentation | 2008-05-27 A Study on Spurious Domain Emission from Multi-carrier Operated Transmitter Masayoshi TANAKA, Hiroshi SAKAMOTO, Mituo KOBAYASHI, Yukiharu KITAYAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents experimental and analytical studies of spurious emissions that a multi-carrier transmitter produces in the spurious domain that was newly defined in ITU WRC-03. We performed a lot of measurement for the multi-carrier system composed of up to 256 QPSK modulated or unmodulated carriers for several output back off conditions of a TWT amplifier. In addition, we developed a precise analytical model of the multi-carrier system. After confirming the validity of the model, we analyzed the spurious emission levels for several operational modes, which include the cases experimentally difficult to construct a test system. Based on these results, we proposed a simple evaluation method without performing complex multi carrier tests. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spurious emission / nonlinear / multi-carrier / nonlinear / HPA / power efficiency |
| Paper # | SAT2008-2 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2008/5/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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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 Study on Spurious Domain Emission from Multi-carrier Operated Transmitter |
| Sub Title (in English) | |
| Keyword(1) | spurious emission |
| Keyword(2) | nonlinear |
| Keyword(3) | multi-carrier |
| Keyword(4) | nonlinear |
| Keyword(5) | HPA |
| Keyword(6) | power efficiency |
| 1st Author's Name | Masayoshi TANAKA |
| 1st Author's Affiliation | College of Industrial Technology, Nihon University() |
| 2nd Author's Name | Hiroshi SAKAMOTO |
| 2nd Author's Affiliation | NTT-Advanced Technologies |
| 3rd Author's Name | Mituo KOBAYASHI |
| 3rd Author's Affiliation | NTT Communications |
| 4th Author's Name | Yukiharu KITAYAMA |
| 4th Author's Affiliation | NTT Communications |
| Date | 2008-05-27 |
| Paper # | SAT2008-2 |
| Volume (vol) | vol.108 |
| Number (no) | 58 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |