A HIGHLY EFFICIENT CLASS-F POWER AMPLIFIER FOR WIDEBAND LINEAR POWER AMPLIFIER APPLICATIONS
SCIE
SCOPUS
- Title
- A HIGHLY EFFICIENT CLASS-F POWER AMPLIFIER FOR WIDEBAND LINEAR POWER AMPLIFIER APPLICATIONS
- Authors
- Kim, J; Moon, J; Hong, S; Kim, B
- Date Issued
- 2009-10
- Publisher
- JOHN WILEY & SONS INC
- Abstract
- In this letter, a highly, efficient class-F power amplifier (PA) is developed as a new main block of tire wideband base-station linear power amplifier. The class-F PA is implemented using Eudyna EGN010MK GaN HEMT with a 10-W peak envelop power. The nonlinearity and memory effects of class-F PA are explored to apply the wideband application. The maximum power-added efficiency of the implemented PA is 68% at a saturated output power of 40 dBm for the 2.14-GHz CW signal. The PA delivers a good efficiency of 35% at an average output power of 32.3 dBm for wide-band code division multiple access 3FA signal with 15-MHz bandwidth, and the linearity can be improved to about -48 dBc using the digital feedback predistortion linearization technique. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2323-2326, 2009 Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24631
- Keywords
- power amplifier; efficiency; linearity; linearization; WCDMA; CDMA BASE-STATION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/27809
- DOI
- 10.1002/MOP.24631
- ISSN
- 0895-2477
- Article Type
- Article
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, vol. 51, no. 10, page. 2323 - 2326, 2009-10
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