| Presentation | 2014-10-23 A Broadband High-Efficiency C-band GaAs p-HEMT MMIC Doherty Amplifier without Impedance Inverting Network Tsuyoshi Yoshida, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The microwave Doherty amplifier consists of two different type amplifiers and quarter-wave impedance inverting network. Therefore, circuit area is large and frequency bandwidth is narrow. We reported a novel Doherty amplifier without impedance inverting network. In order to remove the inverting network, the output matching networks of both amplifiers are designed to realize high performance both at a low RF level and at the RF saturation level. C-band series-connected-load Doherty amplifier without impedance inverting network was designed and fabricated using GaAs p-HEMT MMIC technology. The amplifier achieved a maximum power added efficiency(PAE) of 49.9% and maximum output power 23.4dBm, A PAE under 10-dB input back-off from a saturated outout power higher than 40% is obtained for a frequency range of 6.1GHz to 6.8GHz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Doherty Amplifier / microwave / power amplifier / GaAs HEMT / series connected load type / MMIC / broadband |
| Paper # | EMCJ2014-47,MW2014-103,EST2014-61 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2014/10/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Broadband High-Efficiency C-band GaAs p-HEMT MMIC Doherty Amplifier without Impedance Inverting Network |
| Sub Title (in English) | |
| Keyword(1) | Doherty Amplifier |
| Keyword(2) | microwave |
| Keyword(3) | power amplifier |
| Keyword(4) | GaAs HEMT |
| Keyword(5) | series connected load type |
| Keyword(6) | MMIC |
| Keyword(7) | broadband |
| 1st Author's Name | Tsuyoshi Yoshida |
| 1st Author's Affiliation | The University of Electro-Communications() |
| 2nd Author's Name | Yoichiro Takayama |
| 2nd Author's Affiliation | The University of Electro-Communications |
| 3rd Author's Name | Ryo Ishikawa |
| 3rd Author's Affiliation | The University of Electro-Communications |
| 4th Author's Name | Kazuhiko Honjo |
| 4th Author's Affiliation | The University of Electro-Communications |
| Date | 2014-10-23 |
| Paper # | EMCJ2014-47,MW2014-103,EST2014-61 |
| Volume (vol) | vol.114 |
| Number (no) | 267 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |