Analog predistortion linearizer for high-power RF amplifiers
SCIE
SCOPUS
- Title
- Analog predistortion linearizer for high-power RF amplifiers
- Authors
- Yi, J; Yang, Y; Park, M; Kang, W; Kim, B
- Date Issued
- 2000-12
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- We have developed an analog predistortion linearizer for a high-power amplifier of a code-division multiple-access (CDMA) base station. To effectively suppress the spectral regrowth in the adjacent channels, the odd-order intermodulation distortions (IMDs) should be cancelled. To accomplish this purpose, we employed a predistorter, which can cancel the third and fifth IMDs independently. The implemented predistorter linearized the RF amplifier with an average power of 45 dBm at 2.37-2.4-GHz band, A 9-dB suppression of spectral regrowth, from 33 to 42 dBc, was achieved for the CDMA signal with an 8.192-Mc/s chip rate over a 30-MHz bandwidth.
- Keywords
- intermodulation distortion; linearization; predistortion; RF power amplifier
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19700
- DOI
- 10.1109/22.899034
- ISSN
- 0018-9480
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 48, no. 12, page. 2709 - 2713, 2000-12
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.