dc.contributor.author | Parke, L. | |
dc.contributor.author | Youngs, I.J. | |
dc.contributor.author | Hibbins, Alastair P. | |
dc.contributor.author | Sambles, J. Roy | |
dc.date.accessioned | 2015-03-12T15:09:54Z | |
dc.date.issued | 2014 | |
dc.description.abstract | A high refractive-index structured ferrite composite is designed to experimentally demonstrate broadband impedance matching to free-space. It consists of an array of ferrite cubes that are anisotropically spaced, thereby allowing for independent control of the effective complex permeability and permittivity. Despite having a refractive index of 9.5, the array gives less than 1% reflection and over 90% transmission of normally incident radiation up to 70 MHz for one of the orthogonal linear polarisations lying in a symmetry plane of the array. This result presents a route to the design of MHz-frequency ferrite composites with bespoke electromagnetic parameters for antenna miniaturisation. | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | DSTL | en_GB |
dc.description.sponsorship | QUEST programme | en_GB |
dc.identifier.citation | Vol. 104 (22), article 221905 | en_GB |
dc.identifier.doi | 10.1063/1.4881186 | |
dc.identifier.grantnumber | EP/I034548/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/16519 | |
dc.language.iso | en | en_GB |
dc.publisher | American Institute of Physics (AIP) | en_GB |
dc.relation.url | http://dx.doi.org/10.1063/1.4881186 | en_GB |
dc.subject | Ferrites | en_GB |
dc.subject | Composite materials | en_GB |
dc.subject | Permittivity | en_GB |
dc.subject | Magnetic resonance | en_GB |
dc.subject | Refractive index | en_GB |
dc.title | Broadband impedance-matched electromagnetic structured ferrite composite in the megahertz range | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2015-03-12T15:09:54Z | |
dc.identifier.issn | 0003-6951 | |
dc.description | Copyright © 2014 AIP Publishing | en_GB |
dc.identifier.eissn | 1077-3118 | |
dc.identifier.journal | Applied Physics Letters | en_GB |