Development of miniaturized antennas and adaptive tuning solutions for body sensor network applications

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dc.contributor.advisor McCarthy, Kevin G. en
dc.contributor.advisor O'Flynn, Brendan en
dc.contributor.author Buckley, John
dc.date.accessioned 2016-06-30T09:13:04Z
dc.date.available 2016-06-30T09:13:04Z
dc.date.issued 2016
dc.date.submitted 2016
dc.identifier.citation Buckley, J. 2016. Development of miniaturized antennas and adaptive tuning solutions for body sensor network applications. PhD Thesis, University College Cork. en
dc.identifier.endpage 183 en
dc.identifier.uri http://hdl.handle.net/10468/2817
dc.description.abstract Wireless Sensor Networks (WSNs) are currently having a revolutionary impact in rapidly emerging wearable applications such as health and fitness monitoring amongst many others. These types of Body Sensor Network (BSN) applications require highly integrated wireless sensor devices for use in a wearable configuration, to monitor various physiological parameters of the user. These new requirements are currently posing significant design challenges from an antenna perspective. This work addresses several design challenges relating to antenna design for these types of applications. In this thesis, a review of current antenna solutions for WSN applications is first presented, investigating both commercial and academic solutions. Key design challenges are then identified relating to antenna size and performance. A detailed investigation of the effects of the human body on antenna impedance characteristics is then presented. A first-generation antenna tuning system is then developed. This system enables the antenna impedance to be tuned adaptively in the presence of the human body. Three new antenna designs are also presented. A compact, low-cost 433 MHz antenna design is first reported and the effects of the human body on the impedance of the antenna are investigated. A tunable version of this antenna is then developed, using a higher performance, second-generation tuner that is integrated within the antenna element itself, enabling autonomous tuning in the presence of the human body. Finally, a compact sized, dual-band antenna is reported that covers both the 433 MHz and 2.45 GHz bands to provide improved quality of service (QoS) in WSN applications. To date, state-of-the-art WSN devices are relatively simple in design with limited antenna options available, especially for the lower UHF bands. In addition, current devices have no capability to deal with changing antenna environments such as in wearable BSN applications. This thesis presents several contributions that advance the state-of-the-art in this area, relating to the design of miniaturized WSN antennas and the development of antenna tuning solutions for BSN applications. en
dc.description.sponsorship Enterprise Ireland (Grant. No. PC_2008_324); Science Foundation Ireland under the European Regional Development Fund (Grant Number 13/RC/2077 – CONNECT and GRANT Number 07/CE/I1147 - CLARITY); European Community {Framework 7 project SMAC (SMArt systems Co-design) – Project reference: 288827 Funded under: FP7-ICT} en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2016, John Buckley. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/ en
dc.subject Antenna en
dc.subject Wearable en
dc.subject Antenna tuning en
dc.subject Wireless sensor network en
dc.subject Body sensor network en
dc.subject Antenna miniaturization en
dc.subject Microstrip antennas en
dc.title Development of miniaturized antennas and adaptive tuning solutions for body sensor network applications en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PHD (Engineering) en
dc.internal.availability Full text available en
dc.check.info No embargo required en
dc.description.version Accepted Version
dc.contributor.funder Enterprise Ireland en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder European Community en
dc.description.status Not peer reviewed en
dc.internal.school Electrical and Electronic Engineering en
dc.internal.school Tyndall National Institute en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
ucc.workflow.supervisor k.mccarthy@ucc.ie
dc.internal.conferring Summer 2016 en


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