| Presentation | 2011-10-20 C-Band High-Efficiency AlGaN/GaN HEMT Power Amplifier by Controlling Phase Angle of up to 4th Harmonics Masahiro KAMIYAMA, Ryo ISHIKAWA, Kazuhiko HONJO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A high-efficiency AlGaN/GaN HEMT power amplifier at C-band has been developed by controlling the phase angles of harmonics up to the fourth order. Through this controlling, the phase angle between voltage and current harmonic waves at a transistor output node is set to be 90 or -90 degrees for each harmonic, in order to remove average power consumption at the transistor. The phase angle control circuit was designed using microstrip transmission lines made on a low-loss alumina ceramics substrate. The fabricated AlGaN/GaN HEMT amplifier delivered a maximum power-added efficiency of 79.5% and a maximum drain efficiency of 90.7% at 5.65 GHz, and the saturated output power was 33.3 dBm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microwave / power amplifier / C-band high efficiency / harmonic phase angles control |
| Paper # | MW2011-89 |
| Date of Issue |
| Conference Information | |
| Committee | MW |
|---|---|
| Conference Date | 2011/10/13(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 | Microwaves (MW) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | C-Band High-Efficiency AlGaN/GaN HEMT Power Amplifier by Controlling Phase Angle of up to 4th Harmonics |
| Sub Title (in English) | |
| Keyword(1) | microwave |
| Keyword(2) | power amplifier |
| Keyword(3) | C-band high efficiency |
| Keyword(4) | harmonic phase angles control |
| 1st Author's Name | Masahiro KAMIYAMA |
| 1st Author's Affiliation | The University of Electro-Communications() |
| 2nd Author's Name | Ryo ISHIKAWA |
| 2nd Author's Affiliation | The University of Electro-Communications |
| 3rd Author's Name | Kazuhiko HONJO |
| 3rd Author's Affiliation | The University of Electro-Communications |
| Date | 2011-10-20 |
| Paper # | MW2011-89 |
| Volume (vol) | vol.111 |
| Number (no) | 250 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |