uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A Tunable Spherical Cap Microfluidic Electrically Small Antenna
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology. (Microsystems Technology)
2013 (English)In: Small, ISSN 1613-6810, E-ISSN 1613-6829, Vol. 9, no 19, 3230-3234 p.Article in journal (Refereed) Published
Abstract [en]

We present a novel microfluidic three-dimensional elec- trically small antenna (ESA). It is easy to construct simply by pneumatically inflating a planar stretchable liquid alloy microfluidic antenna into a spherical cap. Its center frequency is tuned when it is inflated; demonstrating combined high efficiency and a wide tunable frequency range around its hemispherical shape.

Place, publisher, year, edition, pages
Weinheim: John Wiley & Sons, 2013. Vol. 9, no 19, 3230-3234 p.
Keyword [en]
microfluidic electronics
National Category
Materials Chemistry Materials Engineering
Research subject
Engineering Science with specialization in Materials Science; Engineering Science with specialization in Microsystems Technology; Engineering Science with specialization in Electronics
Identifiers
URN: urn:nbn:se:uu:diva-198541DOI: 10.1002/smll.201300070ISI: 000327899900007OAI: oai:DiVA.org:uu-198541DiVA: diva2:616834
Projects
VR Forass to Wu, and Wisenet
Available from: 2013-04-19 Created: 2013-04-19 Last updated: 2017-12-06Bibliographically approved
In thesis
1. Wireless Interface Technologies for Sensor Networks
Open this publication in new window or tab >>Wireless Interface Technologies for Sensor Networks
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The main focus of the work presented in this thesis concerns the development and improvement of Wireless Sensor Networks (WSNs) as well as Wireless Body Area Networks (WBANs). WSN consist of interlinked, wireless devices (nodes) capable of relaying data wirelessly between the nodes. The applications of WSNs are very broad and cover both wireless fitness monitoring systems such as pulse watches or wireless temperature monitoring of buildings, among others.

The topics investigated in the work presented within this thesis covers antenna design, wireless propagation environment evaluation and modeling, adaptive antenna control and wireless nodes system design and evaluation. In order to provide an end-user suitable solution for wireless nodes the devices require both small form factor and good performance in order to be competitive on the marked and thus the main part of this thesis focuses on techniques developed and data collected to help achieve these goals. 

Several different prototype systems have been developed which have been used to measure data by the Swedish Defence Research Agency (FOI), GKN Aerospace Sweden AB, the Swedish Transport Administration. The system developed with GKN Aerospace was used to do real-time test measurements inside a running RM12 jet engine and required a substantial amount of measurements, environmental modeling and system validation in order to properly design a wireless system suitable for the harsh and fast fading environment inside a jet engine. For FOI improvements were made on a wearable wireless body area network initially developed during the authors master thesis work. Refinements included work on new generation wireless nodes, antenna packaging and node-supported diversity techniques.

Work and papers regarding the design of different types of antennas suitable for wireless nodes are presented. The primary constraints on the presented antennas are the limited electrical size. The types of antennas developed include electrically small helix antennas manufactured both on stretchable substrates consisting of a PDMS substrate with Galinstan as the liquid metal conductors, screen printed silver ink for helix antennas and conformal dual patch antennas for wireless sensor nodes. Other standard type antennas are included on the wireless sensors as well.

Place, publisher, year, edition, pages
uppsala: Acta Universitatis Upsaliensis, 2015. 97 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 1216
Keyword
Wireless Sensor Networks, Body Area Networks, Jet Turbine, Electrically Small Antennas, Antenna Theory, WISENET, Wisejet
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Embedded Systems Communication Systems Telecommunications
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-239400 (URN)978-91-554-9136-9 (ISBN)
Public defence
2015-02-13, Ångströmslaboratoriet, Lägerhyddsvägen 1, Uppsala, 13:15 (English)
Opponent
Supervisors
Available from: 2015-01-23 Created: 2014-12-22 Last updated: 2015-03-09

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://dx.doi.org/10.1002/smll.201300070

Authority records BETA

Jobs, MagnusHjort, KlasRydberg, AndersWu, Zhigang

Search in DiVA

By author/editor
Jobs, MagnusHjort, KlasRydberg, AndersWu, Zhigang
By organisation
Solid State ElectronicsMicrosystems Technology
In the same journal
Small
Materials ChemistryMaterials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 934 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf