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Prediction of Nonli...
Prediction of Nonlinear Distortion in Wideband Active Antenna Arrays
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- Hausmair, Katharina, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gustafsson, Sebastian, 1990 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Sanchez Perez, Cesar, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Landin, Per, 1983 (författare)
- Telefonaktiebolaget L M Ericsson,Ericsson
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- Gustavsson, Ulf, 1975 (författare)
- Telefonaktiebolaget L M Ericsson,Ericsson
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- Eriksson, Thomas, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fager, Christian, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: IEEE Transactions on Microwave Theory and Techniques. - 0018-9480 .- 1557-9670. ; 65:11, s. 4550-4563
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this paper we propose a technique for comprehensive analysis of nonlinear and dynamic characteristics of multi-antenna transmitters (TXs). The analysis technique is enabled by the development of a Volterra series-based dual-input model for power amplifiers (PAs), which is capable of taking into account the joint effects of PA nonlinearity, antenna crosstalk and mismatch for wideband modulated signals. By combining multiple instances of the PA model with linear dynamic antenna simulations we develop the analysis technique. The proposed method allows the prediction of the output signal of every antenna in an arbitrarily sized TX array, as well as the total far-field radiated wave of the TX for any input signal with low computational effort. A 2.12 GHz four-element TX demonstrator based on GaAs PAs is implemented to verify simulation results with measurements. The proposed technique is a powerful tool to study hardware characteristics, as for example the effects of antenna design and element spacing. It can be used in cases where experiments are not feasible, and thus aid the development of next generation wireless systems.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- multi-antenna transmitter
- active antenna array
- power amplifier modeling
- MIMO
- antenna crosstalk
- mismatch
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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