| Presentation | 2002/10/17 Feedforward Power Amplifier Control Method Using Weight Division Adaptive Algorithm Kenichi HORIGUCHI, Atushi OKAMURA, Masatoshi NAKAYAMA, Yukio IKEDA, Tadashi TAKAGI, Osami ISHIDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The weight division adaptive algorithm which is suitable to control a microwave FeedForward Power Amplifier (FFPA) is presented. In this algorithm, an output signal of a power amplifier is used as a reference signal to exclude the effect of the power amplifier to the convergence performances. The down converted complex reference signal is divided by the loop adjustment complex weight vector in the digital circuit. After the division, the phase difference between the reference signal and the error signal are calibrated, and then the Normalized Least Mean Square (NLMS) algorithm is applied. The proposed algorithm and the convergence condition are derived analytically. The effects of the proposed algorithm are verified by the nonlinear simulation of the FFPA using AM-AM and AM-PM nonlinearity of GaAsFET. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Normalized Least Mean Square / Adaptive Algorithm / Feedforward / Power Amplifier |
| Paper # | EMCJ2002-57 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2002/10/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Feedforward Power Amplifier Control Method Using Weight Division Adaptive Algorithm |
| Sub Title (in English) | |
| Keyword(1) | Normalized Least Mean Square |
| Keyword(2) | Adaptive Algorithm |
| Keyword(3) | Feedforward |
| Keyword(4) | Power Amplifier |
| 1st Author's Name | Kenichi HORIGUCHI |
| 1st Author's Affiliation | Mitsubishi Electric Corporation() |
| 2nd Author's Name | Atushi OKAMURA |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation |
| 3rd Author's Name | Masatoshi NAKAYAMA |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation |
| 4th Author's Name | Yukio IKEDA |
| 4th Author's Affiliation | Mitsubishi Electric Corporation |
| 5th Author's Name | Tadashi TAKAGI |
| 5th Author's Affiliation | Mitsubishi Electric Corporation |
| 6th Author's Name | Osami ISHIDA |
| 6th Author's Affiliation | Mitsubishi Electric Corporation |
| Date | 2002/10/17 |
| Paper # | EMCJ2002-57 |
| Volume (vol) | vol.102 |
| Number (no) | 405 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |