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A Comparative Study of Single-Ended vs. Differential Six-Port Modulators for Wireless Communications
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-2117-1178
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
2015 (English)In: IEEE Transactions on Circuits and Systems Part 1: Regular Papers, ISSN 1549-8328, E-ISSN 1558-0806, Vol. 62, no 2, 564-570 p.Article in journal (Refereed) Published
Abstract [en]

If present, nonlinear effects in a six-port modulator cause distortion and degradation of the quality of the modulated output waveform. How nonlinear effects occur and their impact on system performance were derived in a mathematical model. The model shows that non-ideal performance of the passive six-port correlator is the main contributor to nonlinear distortion. Simulations and measurements on two manufactured six-port modulators were used to validate the theory and to give deeper insight on system performance. It is shown that by using a differentially signaled six-port modulator instead of a single-ended six-port modulator, better performance is achieved over a wide bandwidth. For an error vector magnitude of less than 10%, the relative bandwidth was measured to 12% for the single-ended but 30% for the differentially signaled modulator

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2015. Vol. 62, no 2, 564-570 p.
Keyword [en]
Differential; modulation order; non-linearity; single-ended; six-port; six-port correlator; six-port modulator
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-115331DOI: 10.1109/TCSI.2014.2362310ISI: 000349399800025OAI: oai:DiVA.org:liu-115331DiVA: diva2:795054
Available from: 2015-03-13 Created: 2015-03-13 Last updated: 2017-12-04

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Östh, JoakimKarlsson, MagnusSerban, AdrianaGong, Shaofang

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IEEE Transactions on Circuits and Systems Part 1: Regular Papers
Electrical Engineering, Electronic Engineering, Information Engineering

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  • apa
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  • de-DE
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