Ogboi, Friday Lawrence, Tasker, Paul J.  ORCID: https://orcid.org/0000-0002-6760-7830, Akmal, M., Lees, Jonathan ORCID: https://orcid.org/0000-0002-6217-7552, Benedikt, Johannes ORCID: https://orcid.org/0000-0002-9583-2349, Bensmida, S., Morris, K., Beach, M. and McGeehan, J.
2014.
High bandwidth investigations of a baseband linearization approach formulated in the envelope domain under modulated stimulus.
Presented at: European Microwave Conference (EuMC) 2014,
Rome, Italy,
6-9 October 2014.
European Microwave Conference (EuMC).
, vol.44
IEEE,
pp. 1305-1308.
10.1109/EuMC.2014.6986683
|
Abstract
Baseband injection provides a useful approach for use in linearizing power amplifiers. The challenge is the determination of the required baseband signal. In [6] a generalized formulation quantifying the baseband voltage signal, injected at the output bias port, to linearize the device behavior was introduced. This envelope domain based solution requires the determination of only a small number of linearizing coefficients. More importantly these coefficients should be stimulus, hence bandwidth independent. This property has been experimentally investigated using a 10W Cree GaN HEMT device under a 3-tone modulated stimulus at 1.5dB of compression. It will be shown that the linearization coefficients were invariant when varying the modulation bandwidth from 2MHz to 20MHz.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Publisher: | IEEE |
| Last Modified: | 27 Oct 2022 10:04 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/68805 |
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