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Time Alignment in a...
Time Alignment in a Dynamic Load Modulation Transmitter Architecture
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- Cao, Haiying, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Soltani Tehrani, Ali, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mashad Nemati, Hossein, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fager, Christian, 1974 (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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- Zirath, Herbert, 1955 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- ISBN 9781424447480
- 2009
- 2009
- English.
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In: Proceedings of the 39th European Microwave Conference, EuMC 2009, Sept. 29-Oct. 1 2009, Rome. - 9781424447480 ; , s. 1211 - 1214
- Related links:
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http://dx.doi.org/10...
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Abstract
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- A time alignment algorithm is proposed for a dynamic load modulation transmitter architecture. The effect of time mismatch between the RF input and baseband control signal is investigated by experiments, and it is shown that unsynchronized signals can result in severe distortion of the output signal. In this paper, cross correlation and sinc interpolation techniques are applied to estimate and compensate for the sub-sample delay between the RF signal path and the baseband control signal path in the measurement system. The performance of the dynamic load modulation transmitter architecture with accurate time alignment is shown by experimental results. The measurement shows that, the efficiency is greatly affected by time alignment and the spectral regrowth is suppressed by more than 10 dB.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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