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Nonlinear Network Analysis for Modern Communication Devices and Systems
University of Gävle, ATM/Department of Building, Energy and Environmental Engineering .ORCID iD: 0000-0001-8460-6509
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2008 (English)In: 72ND ARFTG MICROWAVE MEASUREMENT SYMPOSIUM, IEEE , 2008, 64-68 p.Conference paper (Refereed)
Abstract [en]

This paper presents a novel test setup, based on a vector signal generator (VSG) and a vector signal analyzer (VSA), capable of nonlinear characterization of communications devices such as RF power amplifiers. Envelope time-domain waveform extraction and correction is applied to the DUT reference plane, preserving vector correction even in modulated environments where ingoing and outgoing signals from the ports of the DUT can be distinguished. This tool is valuable in the analysis of nonlinear devices, the generation of behavioral models and the study of memory effects..

Place, publisher, year, edition, pages
IEEE , 2008. 64-68 p.
National Category
Engineering and Technology Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-45201DOI: 10.1109/ARFTG.2008.4804292ISI: 000270442000011OAI: diva2:452014
72nd ARFTG Microwave Measurement Conference. Portland, OR. DEC 09-12, 2008
QC 20111109Available from: 2011-10-27 Created: 2011-10-27 Last updated: 2013-02-04Bibliographically approved
In thesis
1. Vector Measurements for Wireless Network Devices
Open this publication in new window or tab >>Vector Measurements for Wireless Network Devices
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. 45 p.
Trita-EE, ISSN 1653-5146 ; 2013:004
Vector measurements, radio frequency, synthetic instrumentation, bandwidth extension
National Category
Research subject
Järnvägsgruppen - Elsystem
urn:nbn:se:kth:diva-111863 (URN)978-91-7501-630-6 (ISBN)
2013-02-22, hörsal 99131, Kungsbäcksvägen 47, Gävle, Gävle, 13:00 (English)

QC 20130204

Available from: 2013-02-04 Created: 2013-01-14 Last updated: 2013-02-04Bibliographically approved

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Zenteno, Efrain
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