| Presentation | 2006-10-26 Linearization of a Microwave Class-F Amplifier Using an Analog Predistortion Circuit Hiroshi MATSUBARA, Norihisa MIYADAI, Toshio NOJIMA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The class-F amplifier operation mode enables a high efficiency power performance even at microwave frequencies. However, its input/output linearity is not necessarily good as linear amplifier applications, because drain current and voltage waveforms are controlled by harmonic tuning. Therefore, it seems that practical utilization has not been succeeded well. In this report, we conduct a fundamental study on the feasibility of third order intermodulation distortions (IM3s) compensation of a class-F amplifier by using an analog predistortion technique without any deterioration of power efficiency. The constructed amplifier achieves a maximum efficiency of 64%. In addition, the distortion characteristics and compensated results are shown. As a result, both IM3s and efficiency are improved at the same time with the proposed construction. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | class-F amplifier / linearizer / predistortion / 2nd order harmonic injection |
| Paper # | EMCJ2006-59,MW2006-115 |
| Date of Issue |
| Conference Information | |
| Committee | EMCJ |
|---|---|
| Conference Date | 2006/10/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Linearization of a Microwave Class-F Amplifier Using an Analog Predistortion Circuit |
| Sub Title (in English) | |
| Keyword(1) | class-F amplifier |
| Keyword(2) | linearizer |
| Keyword(3) | predistortion |
| Keyword(4) | 2nd order harmonic injection |
| 1st Author's Name | Hiroshi MATSUBARA |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Norihisa MIYADAI |
| 2nd Author's Affiliation | Nihon Dengyo Kosaku Co., Ltd. |
| 3rd Author's Name | Toshio NOJIMA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2006-10-26 |
| Paper # | EMCJ2006-59,MW2006-115 |
| Volume (vol) | vol.106 |
| Number (no) | 322 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |