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A technique to exte...
A technique to extend the bandwidth of an RF power amplifier test bed
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- Wisell, David (författare)
- Högskolan i Gävle,KTH,Signalbehandling,Ämnesavdelningen för elektronik,Ericsson AB, Stockholm, Sweden; Signal Processing Laboratory, Royal Institute of Technology, Stockholm, Sweden
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- Rönnow, Daniel (författare)
- Högskolan i Gävle,Ämnesavdelningen för elektronik,Westerngeco AS, Asker, Norway.
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- Händel, Peter, 1962- (författare)
- Högskolan i Gävle,KTH,Signalbehandling,ACCESS Linnaeus Centre,Ämnesavdelningen för elektronik,Signal Processing Laboratory, Royal Institute of Technology, Stockholm, Sweden
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(creator_code:org_t)
- 2007
- 2007
- Engelska.
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Ingår i: IEEE Transactions on Instrumentation and Measurement. - 0018-9456 .- 1557-9662. ; 56:4, s. 1488-1494
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Abstract
Ämnesord
Stäng
- In this paper, a method for increasing the bandwidth of a test bed for dynamic characterization of power amplifiers (PAs) is described. The technique is readily implemented using commercially available instruments, which makes it suitable for, e.g., production testing. The bandwidth extension technique is combined with coherent averaging of the measurements in order to simultaneously increase the bandwidth and dynamic range of the test bed. The errors in the obtained wideband signal are also estimated. The method is evaluated experimentally on a base station PA for the third-generation wideband code division multiple access system and on a Doherty amplifier. A tenfold increase in bandwidth to a total of 144 MHz and a more than 10-dB increase in dynamic range to 78 dB were obtained in practice. In addition, the obtained wideband signal is used for behavioral amplifier modeling.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- amplifier model
- bandwidth extension
- dynamic range
- measurement system
- power amplifier (PA)
- test bed
- Signal processing
- Signalbehandling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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