| Presentation | 2009-09-25 Analysis and Design of a Dynamic Predistorter for WCDMA Handset Power Amplifiers(2008MTT-S Japan Chapter Young Engineer Award) Shingo YAMANOUCHI, Yuuichi AOKI, Kazuaki Kunihiro, Tomohisa HIRAYAMA, Takashi MIYAZAKI, Hikaru HIDA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a dynamic predistorter (PD), which linearizes dynamic AM-AM and AM-PM of a wide-band CDMA (WCDMA) handset power amplifier (PA). The dynamic PD allows an ACPR improvement of 15.7dB, which is superior to conventional PDs that linearize static AM-AM and AM-PM. The third-order inter-modulation distortion (IMD3) amplitude and phase of the dynamic PD are designed by load impedance at RF fundamental band and baseband, respectively. Dynamic AM-AM and AM-PM of the dynamic PD are also designed through the IMD3 design. The fabricated two-stage InGaP/GaAs HBT PA module with the dynamic PD exhibited an ACPR of -40dBc and a PAE of 50% at an average output power of 26.8dBm with a quiescent current of 20mA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adjacent channel leakage power ratio (ACPR) / intermodulation distortion (IMD) / linearization / nonlinear distortion / power amplifiers (PAs) / predistorter (PD) |
| Paper # | MW2009-90 |
| Date of Issue |
| Conference Information | |
| Committee | MW |
|---|---|
| Conference Date | 2009/9/18(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) | Analysis and Design of a Dynamic Predistorter for WCDMA Handset Power Amplifiers(2008MTT-S Japan Chapter Young Engineer Award) |
| Sub Title (in English) | |
| Keyword(1) | Adjacent channel leakage power ratio (ACPR) |
| Keyword(2) | intermodulation distortion (IMD) |
| Keyword(3) | linearization |
| Keyword(4) | nonlinear distortion |
| Keyword(5) | power amplifiers (PAs) |
| Keyword(6) | predistorter (PD) |
| 1st Author's Name | Shingo YAMANOUCHI |
| 1st Author's Affiliation | NEC Corporation() |
| 2nd Author's Name | Yuuichi AOKI |
| 2nd Author's Affiliation | NEC Corporation |
| 3rd Author's Name | Kazuaki Kunihiro |
| 3rd Author's Affiliation | NEC Corporation |
| 4th Author's Name | Tomohisa HIRAYAMA |
| 4th Author's Affiliation | NEC Electronics Corporation |
| 5th Author's Name | Takashi MIYAZAKI |
| 5th Author's Affiliation | NEC Corporation |
| 6th Author's Name | Hikaru HIDA |
| 6th Author's Affiliation | NEC Electronics Corporation |
| Date | 2009-09-25 |
| Paper # | MW2009-90 |
| Volume (vol) | vol.109 |
| Number (no) | 210 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |