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Linearization Study...
Linearization Study of a Highly Efficient CMOS-GaN RF Pulse Width Modulation Based Transmitter
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- ÖZEN, MUSTAFA, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Andersson, Christer, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Eriksson, Thomas, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Acar, Mustafa (author)
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Jos, Hendrikus, 1954 (author)
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- Fager, Christian, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- IEEE, 2012
- 2012
- English.
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In: European Microwave Conference. - : IEEE. ; , s. 136-139
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Abstract
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- This paper studies linearity of a 2 GHz, 10 Watt peak output power RF pulse width modulation (RF-PWM) based transmitter. The transmitter incorporates a tunable load network class-E PA as the final output stage. The tunable load network enables dynamic optimization of the class-E along with the duty cycle resulting in high efficiency over a wide range of output power levels. A digital predistiortion based linearization scheme is proposed to enhance the linearity of the transmitter. After linearization, the transmitter exhibits an adjacent channel power ratio (ACPR) of -45 dBc with a 3.84 MHz, 6.7 dB peak-to-average power ratio (PAPR) W-CDMA signal. The average drain efficiency of the GaN HEMT output stage is 67% and the total transmitter efficiency is 54%.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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