| Presentation | 2001/11/12 A Calibration Method of Amplitude and Phase Balance of Power Amplifiers for LINC by Least-Squares Method Riichiro Nagareda, Kazuhiko Fukawa, Hiroshi Suzuki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In mobile radio communication systems, the linear amplification with nonlinear components (LINC) method is one of the promising techniques to achieve both highly linear and power-efficiency amplifiers, which are required for low-cost and downsized base stations. The LINC technique splits a modulated signal into two ones with constant amplitudes, which are thenamplified individually by the high power-efficiency nonlinear amplifiers and combined as the output. A major drawback of the LINC is that the gain and phase imbalance between the two amplifier branches causes intolerable out-of-band spectrum. For the purpose of overcoming such a problem, this report proposes a new technique that estimates the imbalance by the Least-Squares method so as to minimize it. Computer simulations with the QPSK modulation demonstrate that this method can suppress the out-of-band spectrum sufficiently. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile radio communications / LINC / Least-Squares method |
| Paper # | RCS2001-169 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2001/11/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Calibration Method of Amplitude and Phase Balance of Power Amplifiers for LINC by Least-Squares Method |
| Sub Title (in English) | |
| Keyword(1) | mobile radio communications |
| Keyword(2) | LINC |
| Keyword(3) | Least-Squares method |
| 1st Author's Name | Riichiro Nagareda |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Kazuhiko Fukawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi Suzuki |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| Date | 2001/11/12 |
| Paper # | RCS2001-169 |
| Volume (vol) | vol.101 |
| Number (no) | 436 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |