| Presentation | 2009-08-04 On Evaluation Index of Power Efficiency for Transmitter Architecture with Amplitude-Modulated Final Stage Amplifier : Power Added Efficiency, Drain/Anode Efficiency, or Anything Suitable? Makoto TAROMARU, Satoshi TSUKAMOTO, Keizou INAGAKI, Kazuto YANO, Masazumi UEBA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A new power efficiency index for RF (radio frequency) power amplifiers is proposed. These amplifiers studied are saturating ones with class-B/C operation and modulated by envelope/amplitude signal; they are suitable for OFDM or multi-level QAM modulation transmitters that are getting more and more widely used for recent wireless communications and broadcasting systems. For those systems usually, class-A linear amplifiers are used with large back-off for the purpose of enough modulation accuracy and spurious characteristics. On the other hand, the amplifiers that are modulated by envelope/amplitude signal are recently being studied. However, a good index of power efficiency for that kind of amplifiers has not been known commonly. This report discusses the problem of conventional indexes, power adding efficiency, for examples, and studies the suitable indexes for the amplifiers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | power amplifier / efficiency / EER / EPWM / EDSM / envelope / PAPR |
| Paper # | RCS2009-102 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2009/7/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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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) | On Evaluation Index of Power Efficiency for Transmitter Architecture with Amplitude-Modulated Final Stage Amplifier : Power Added Efficiency, Drain/Anode Efficiency, or Anything Suitable? |
| Sub Title (in English) | |
| Keyword(1) | power amplifier |
| Keyword(2) | efficiency |
| Keyword(3) | EER |
| Keyword(4) | EPWM |
| Keyword(5) | EDSM |
| Keyword(6) | envelope |
| Keyword(7) | PAPR |
| 1st Author's Name | Makoto TAROMARU |
| 1st Author's Affiliation | ATR Wave Engineering Laboratories() |
| 2nd Author's Name | Satoshi TSUKAMOTO |
| 2nd Author's Affiliation | ATR Wave Engineering Laboratories |
| 3rd Author's Name | Keizou INAGAKI |
| 3rd Author's Affiliation | ATR Wave Engineering Laboratories |
| 4th Author's Name | Kazuto YANO |
| 4th Author's Affiliation | ATR Wave Engineering Laboratories |
| 5th Author's Name | Masazumi UEBA |
| 5th Author's Affiliation | ATR Wave Engineering Laboratories |
| Date | 2009-08-04 |
| Paper # | RCS2009-102 |
| Volume (vol) | vol.109 |
| Number (no) | 164 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |