| Presentation | 2007-10-26 A basic study on EER transmitter with burst-width envelope modulation based on triangle-wave PWM Toshiro KODERA, Nobuhiko ANDO, Makoto TAROMARU, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The improvement of efficiency on power amplifiers (PAs) has been a major assignment from dc to microwave region. The class-E and F PAs, overdriven amplifiers with harmonics control are well known scheme to obtain the high efficiency on microwave PA. However, significant deterioration as same as the conventional amplifier is specifically inevitable issue in the linear operation. These facts draw efficiency reduction and modulation inaccuracy on the high backoff modulation such as OFDM. Recently, EER (envelope elimination and restoration) and polar modulation are widely researched as a solution for these issues. In this work, a novel EER transmitter with burst-width modulation driven class-E amplifier system is verified on 64 QAM signal of 2.3GHz. As a result, it is confirmed that basic parameters on PA, EVM are simultaneously improved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | class-E amplifier / EER / burst-width envelope modulation / high-efficiency amplifier / improvement of error vector magnitude / improvement of PAE |
| Paper # | EMCJ2007-67,MW2007-114 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2007/10/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | 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) | A basic study on EER transmitter with burst-width envelope modulation based on triangle-wave PWM |
| Sub Title (in English) | |
| Keyword(1) | class-E amplifier |
| Keyword(2) | EER |
| Keyword(3) | burst-width envelope modulation |
| Keyword(4) | high-efficiency amplifier |
| Keyword(5) | improvement of error vector magnitude |
| Keyword(6) | improvement of PAE |
| 1st Author's Name | Toshiro KODERA |
| 1st Author's Affiliation | Wave Engineering Laboratories, ATR() |
| 2nd Author's Name | Nobuhiko ANDO |
| 2nd Author's Affiliation | Wave Engineering Laboratories, ATR |
| 3rd Author's Name | Makoto TAROMARU |
| 3rd Author's Affiliation | Wave Engineering Laboratories, ATR |
| Date | 2007-10-26 |
| Paper # | EMCJ2007-67,MW2007-114 |
| Volume (vol) | vol.107 |
| Number (no) | 278 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |