Piacibello, Anna, Moreno Rubio, Jorge Julian, Quaglia, Roberto  ORCID: https://orcid.org/0000-0003-3228-301X and Camarchia, Vittorio
2022.
AM/PM characterization of wideband power amplifiers.
Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR),
Las Vegas, NV, USA,
16-19 January 2022.
Proceedings of IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications.
IEEE,
10.1109/PAWR53092.2022.9719787
|
Preview |
PDF
- Accepted Post-Print Version
Download (673kB) | Preview |
Abstract
This paper presents the linearity assessment of two state-of-the-art wideband power amplifiers, a single stage class AB and a two-way 6 dB Doherty, in terms of amplitude-to-phase-modulation (AM/PM) distortion. The simulated and measured characteristics are shown and discussed. The class AB amplifier maintains AM/PM within 6° from 1 to 4 GHz, i.e. on a 120% bandwidth, while the Doherty amplifier has similar performance from 2.2 to 2.9 GHz, i.e. on a 28 % bandwidth. This characterization campaign highlights the superior linearity of the class AB amplifier over relative bandwidths that exceed 100% but, at the same time, the potential of the Doherty amplifier to maintain very limited (within 10°) amplitude-to-phase-modulation distortion over bandwidths up to around 60 %. Both power amplifiers are well in line with the state of the art also in terms of linearity, besides output power, gain, and efficiency performance.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | IEEE |
| ISBN: | 9781665434737 |
| ISSN: | 2164-8751 |
| Date of First Compliant Deposit: | 13 January 2023 |
| Last Modified: | 03 Mar 2023 02:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/153910 |
Actions (repository staff only)
 |
Edit Item |
Dimensions
Dimensions