Abstract
The authors have shown that polynomial predistortion has the potential to provide useful improvements in amplifier linearity. Improvements are achieved over a very wide frequency range: 100 MHz to 1 GHz using the same hardware. By careful design and balancing of delays it is possible to linearise over very wide bandwidths indeed, tests being conducted at up to 180 MHz instantaneous bandwidth. Although tests were carried out at up to 60 MHz tone spacing there is no reason to believe that wider bandwidths are not achievable. Due to the relative simplicity of this hardware this method of predistortion may well find application in both the base station and the mobile part of a radio communication system
| Translated title of the contribution | Power amplifier linearisation using predistortion techniques |
|---|---|
| Original language | English |
| Title of host publication | Colloquium on RF and Microwave Components for Communication Systems, Bradford, UK |
| Publisher | Institution of Engineering and Technology (IET) |
| Pages | 6/1 - 6/6 |
| Publication status | Published - Apr 1997 |
| Event | Colloquium on RF and Microwave Components for Communication Systems - Bradford, United Kingdom Duration: 1 Apr 1997 → … |
Conference
| Conference | Colloquium on RF and Microwave Components for Communication Systems |
|---|---|
| Country/Territory | United Kingdom |
| City | Bradford |
| Period | 1/04/97 → … |
Bibliographical note
Conference Proceedings/Title of Journal: IEE Colloquium on RF and Microwave Components for Communication SystemsRose publication type: Conference contribution
Sponsorship: The authors would like to thank Professor J. P. McGeehan for the provision of laboratory facilities. The first author would also like to thank EPSRC for funding this work
Other identifier: IEE Digest No: 1997/126
Keywords
- radiofrequency amplifiers