Husseini, Thoalfukar, Al-Rawachy, Azam, Anera, Syed S., Bell, James  ORCID: https://orcid.org/0000-0002-4815-2199, Tasker, Paul ORCID: https://orcid.org/0000-0002-6760-7830 and Benedikt, Johannes ORCID: https://orcid.org/0000-0002-9583-2349
2018.
On the effective modeling of the test-set non-linearity.
Presented at: 2018 91st ARFTG Microwave Measurement Conference (ARFTG),
Philadelphia, PA, USA,
15 June 2018.
2018 91st ARFTG Microwave Measurement Conference (ARFTG).
IEEE,
10.1109/ARFTG.2018.8423832
|
Preview |
PDF
- Accepted Post-Print Version
Download (900kB) | Preview |
Abstract
This paper investigates and compares the use of nonlinear test-set models for an effective and accurate operation of active load-pull systems. The results demonstrate a simple-to-implement and yet robust technique to align the generator and receiver reference plane with a minimum set of required measurements. With only 14 measurements a high agreement between target and measured load points was achieved with an average error less than 0.1 dB over a 70dB dynamic range. An increase in modeling complexity has therefore yielded no improvement. To compare the results, a behavioral model was employed, and it is shown that a high order of model complexity is required to achieve the same level of accuracy. The presented work provides, for the first time, a practical and effective method for the modeling of test-set nonlinearities, hence allowing a cost-effective implementation of active load-pull systems that operate power amplifiers within a gain compression region.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Published Online |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | IEEE |
| ISBN: | 9781538654514 |
| Date of First Compliant Deposit: | 11 January 2019 |
| Date of Acceptance: | 15 June 2018 |
| Last Modified: | 24 Oct 2022 08:38 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/118309 |
Actions (repository staff only)
 |
Edit Item |
Altmetric
Altmetric