A novel Doherty power amplifier with self-adaptive biasing network for efficiency improvement
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 2586-2589 |
| Journal / Publication | Microwave and Optical Technology Letters |
| Volume | 53 |
| Issue number | 11 |
| Publication status | Published - Nov 2011 |
Link(s)
Abstract
A Doherty power amplifier (DPA) with a self-adaptive biasing circuit is presented in this letter. The proposed structure is integrated into the gate biasing network of the peaking power amplifier (PA), and then the gate voltage can be adaptively adjusted with the input power. Due to the presence of this simple but effective circuit, the peaking PA can approach the ideal power transfer characteristic which results in better efficiency than the conventional design with constant biasing. The proposed circuit is implemented and compared with both the conventional DPA and a single Class-AB PA. 12% and 34% power added efficiency improvements are achieved at 6 dB backoff © 2011 Wiley Periodicals, Inc.
Research Area(s)
- Doherty power amplifier, peak-to-average power ratio, self-adaptive biasing, soft tune-on
Citation Format(s)
A novel Doherty power amplifier with self-adaptive biasing network for efficiency improvement. / Chen, Shichang; Xue, Quan.
In: Microwave and Optical Technology Letters, Vol. 53, No. 11, 11.2011, p. 2586-2589.
In: Microwave and Optical Technology Letters, Vol. 53, No. 11, 11.2011, p. 2586-2589.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
