Study of split-ring resonators for use on a pharmaceutical drug capsule for microwave activated drug release

Sævar Þór Jónasson, Brian Sveistrup Jensen, Tom Keinicke Johansen

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Abstract

In this paper, a novel method for externally activating a pharmaceutical drug capsule by use of split-ring resonators (SRR) is introduced. To this end, the effect of the orientation of the SRRs on the ability to activate the capsules is examined. A coplanar waveguide is used to excite an identical pair of SRRs fabricated on a substrate, representing an enlarged lid for a pharmaceutical drug capsule. Orientations where the electric field component of a quasi-TEM wave lies across the gap of the SRRs provides the largest response. The optimal case is when the electric field component lies across the gap simultaneously with the magnetic field component normal to the SRRs. Furthermore, an analysis of the optimal conductivity and relative permittivity for enhanced temperature rise in the lid is performed. Conductivity of 0.09 S/m and relative permittivity of 12 shows the highest temperature rise.
Original languageEnglish
Title of host publicationProceedings of European Microwave Conference 2012
Publication date2012
ISBN (Print)9781467322157
Publication statusPublished - 2012
EventEuropean Microwave Conference 2012 - Amsterdam, Netherlands
Duration: 29 Oct 20121 Nov 2012

Conference

ConferenceEuropean Microwave Conference 2012
CountryNetherlands
CityAmsterdam
Period29/10/201201/11/2012

Cite this

Jónasson, S. Þ., Jensen, B. S., & Johansen, T. K. (2012). Study of split-ring resonators for use on a pharmaceutical drug capsule for microwave activated drug release. In Proceedings of European Microwave Conference 2012