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Vector Measurements for Wireless Network Devices
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Electronics. KTH, Skolan för elektro- och systemteknik (EES), Signalbehandling/ACCESS Linnaeus Centre.ORCID iD: 0000-0001-8460-6509
2013 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Wireless networks are an iconic technology of today’s modern era, theyare present in our daily activities as can be exemplified by cellular communications,wi-fi, bluetooth, and others. Vector measurements play an importantrole in the design, simulation, and testing of wireless networks and are usedto characterize key devices operating in the radio interface, such as amplifiers,filters, and mixers.Accurate characterization is the key for improving the capacity and efficiencyof wireless networks. As the demand for network capacity continuouslyincreases, the accuracy of vector measurements must also improve. Further,it is anticipated that such trends will continue in the years to come. Consequently,the wireless industry needs to include nonlinear behavior in theircharacterization and analysis, to assess and guaranty the operation of the devices,and to comply to the specifications from governmental regulations. Incontrast to linear behavior, nonlinear behavior presents an additional bandwidthrequirement because the signal bandwidth grows when it passes throughnonlinear devices. In this thesis, vector measurements for devices operatingin wireless networks are studied, emphasizing a synthetic approach for theinstrumentation. This approach enables the use of digital post-processing algorithms,which enhances the measurement accuracy and/or speed and canovercome hardware impairments. This thesis presents the design of a vectorialmeasurement system for wireless devices considering the aforementionedtrends and requirements. It also explores the advantages of the proposedapproach, describes its limitations, and discusses the digital signal processingalgorithms used to reach its final functionality. Finally, measurement resultsof the proposed setup are presented, analyzed and compared to those of modernindustrial instruments.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology , 2013. , p. 45
Series
TRITA-EE, ISSN 1653-5146 ; 2013:004
Keywords [en]
Vector measurements, radio frequency, synthetic instrumentation, bandwidth extension
National Category
Telecommunications
Research subject
Järnvägsgruppen - Elsystem
Identifiers
URN: urn:nbn:se:hig:diva-18940ISBN: 978-91-7501-630-6 (print)OAI: oai:DiVA.org:hig-18940DiVA, id: diva2:786300
Presentation
2013-02-22, Hörsal 99131, Kungsbäcksvägen 47, Gävle, 13:00 (English)
Opponent
Supervisors
Available from: 2015-02-05 Created: 2015-02-05 Last updated: 2021-06-17Bibliographically approved
List of papers
1. An Envelope Domain Measurement Test Setup to Acquire Linear Scattering Parameters
Open this publication in new window or tab >>An Envelope Domain Measurement Test Setup to Acquire Linear Scattering Parameters
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2008 (English)In: 72nd ARFTG Conf. Dig., Portland, OR, 2008, p. 54-57Conference paper, Published paper (Refereed)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-3272 (URN)10.1109/ARFTG.2008.4804287 (DOI)978-1-4244-2300-2 (ISBN)
Available from: 2008-12-16 Created: 2008-12-16 Last updated: 2018-03-13Bibliographically approved
2. Nonlinear Network Analysis for Modern Communication Devices and Systems
Open this publication in new window or tab >>Nonlinear Network Analysis for Modern Communication Devices and Systems
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2008 (English)In: 72nd ARFTG Conf. Dig., Portland, OR, 2008, p. 64-68Conference paper, Published paper (Refereed)
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-3273 (URN)10.1109/ARFTG.2008.4804292 (DOI)978-1-4244-2300-2 (ISBN)
Available from: 2008-12-16 Created: 2008-12-16 Last updated: 2018-03-13Bibliographically approved
3. A synthetic vector network analyzing measurement system
Open this publication in new window or tab >>A synthetic vector network analyzing measurement system
2011 (English)In: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662, Vol. 60, no 6, p. 2154-2161Article in journal (Refereed) Published
Abstract [en]

In this paper a synthetic vector network analyzing measurement system is presented. The system is based on a hardware set-up, including a signal generator and a vector signal analyzer, with the vector network analyzing functionality implemented in the software. The measurements of the proposed system demonstrated comparable performance in terms of accuracy and speed compared with a modern traditional vector network analyzer, but it is more flexible due to its inherent software implementation. The proposed system’s ability to measure nonlinear phenomena is addressed and discussed, and some preliminary results are given.

Place, publisher, year, edition, pages
Institution of Electrical Engineers (IEE), 2011
Keywords
vector network analyzer, S-parameters, nonlinear, virtual instrument, synthetic instrument
National Category
Control Engineering
Identifiers
urn:nbn:se:hig:diva-9735 (URN)10.1109/TIM.2011.2113132 (DOI)000290538700025 ()2-s2.0-79955971576 (Scopus ID)
Available from: 2011-07-01 Created: 2011-07-01 Last updated: 2018-03-13Bibliographically approved
4. A Bandwidth Extension for Technique Radio Frequency Measurements Using Pilot Tones
Open this publication in new window or tab >>A Bandwidth Extension for Technique Radio Frequency Measurements Using Pilot Tones
2013 (English)Manuscript (preprint) (Other academic)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-36324 (URN)
Available from: 2013-02-04 Created: 2021-06-17 Last updated: 2022-06-13Bibliographically approved

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