Urvoy, Jean-Baptiste, Quaglia, Roberto  ORCID: https://orcid.org/0000-0003-3228-301X and Cripps, Steve C. ORCID: https://orcid.org/0000-0002-2258-951X
2025.
Design and simulation of a Doherty-mode OLMBA for enhanced back-off efficiency over an octave bandwidth.
Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits,
Torino, Italy,
10-11 April 2025.
Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits.
IEEE,
pp. 1-4.
10.1109/INMMIC64198.2025.10975674
|
Preview |
PDF
- Accepted Post-Print Version
Download (3MB) | Preview |
Abstract
This paper presents a new design for the OLMBA focused on exploiting a Doherty-like mode with one device in class AB and the other in class C to enhance 6 dB output back-off efficiency across an octave bandwidth of 0.8 to 1.6 GHz. The simulation results show that the device can achieve 48 to 53 % back-off PAE while delivering an output power of 46 to 48 dBm at 3 dB compression and 12.6 to 16.1 dB gain. Furthermore, the operation of this device seems to conform with the operation of Doherty power amplifiers in terms of how the intrinsic impedance changes between back-off and saturation. Whilst this is only based on simulated results, it does show that it is a promising design for a high-efficiency, wide-bandwidth OLMBA for linear applications.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | IEEE |
| ISBN: | 979-8-3315-1961-2 |
| ISSN: | 2689-548X |
| Date of First Compliant Deposit: | 13 May 2025 |
| Date of Acceptance: | 14 February 2025 |
| Last Modified: | 20 May 2025 09:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/178243 |
Actions (repository staff only)
 |
Edit Item |
Altmetric
Altmetric