| Presentation | 2007-07-27 A study of Hybrid Transmitter of LING and EER Takahiko KISHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The distortion of transmitters is an impediment of the improvement of frequency use. It causes the restriction of the actual transmission rate due to deterioration of modulation accuracy in the channel band, and gives interference to radios about the radio that uses neighboring frequencies outside the channel band. In this paper, LINC with excellent theoretical linearity but the low power efficiency in low power range and EER with excellent power efficiency and higher linearity than linear amplifiers in high power but lower distortion in low power are combined as the measures, and it is operated as EER in a high power range and LINC in a low power range. Then, issues of efficiency of LINC and dynamic range of EER are solved, and it is possible to balance excellent linearity and wide dynamic range. Furthermore, band limiting of the envelope amplifier in addition to balance linearity and dynamic rage becomes possible because it combines this proposal and the band limiting envelope amplifier of EER. As a result, the feasibility of LINC systems and EER systems for which realization in broadband or high PAPR modulation systems improves by this proposal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LINC / EER / Power Amplifier / Power Efficiency / SDR / Cognitive Radio / Give Interference |
| Paper # | SR2007-42 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2007/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Software Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of Hybrid Transmitter of LING and EER |
| Sub Title (in English) | |
| Keyword(1) | LINC |
| Keyword(2) | EER |
| Keyword(3) | Power Amplifier |
| Keyword(4) | Power Efficiency |
| Keyword(5) | SDR |
| Keyword(6) | Cognitive Radio |
| Keyword(7) | Give Interference |
| 1st Author's Name | Takahiko KISHI |
| 1st Author's Affiliation | Samsung Yokohama Research Institute Co., Ltd.() |
| Date | 2007-07-27 |
| Paper # | SR2007-42 |
| Volume (vol) | vol.107 |
| Number (no) | 162 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |