Zobrazeno 1 - 10
of 372
pro vyhledávání: '"J. R. Sambles"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-7 (2023)
Abstract We experimentally demonstrate a Purcell effect-based design technique for improved impedance matching, and thus enhanced the reflection coefficient from a small microwave emitter. Using an iterative process centred on comparing the phase of
Externí odkaz:
https://doaj.org/article/0d085346d0e24bbdbfd116a096718100
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-6 (2022)
Abstract Independent control of the magnetic and electric properties of two-part and three-part ferrite composites is demonstrated through variation of particle size and volume fraction of ferrite inclusions. This provides a route to creating broadba
Externí odkaz:
https://doaj.org/article/d9e9c7ed21c84ed789d7b2a39e9da5bf
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Abstract The acoustic surface modes supported by a partly covered periodic meander groove structure formed in an assumed perfectly rigid plate are investigated. This allows one to create a slower acoustic surface wave than can be achieved with the sa
Externí odkaz:
https://doaj.org/article/b1c4f54a91944d57a7221b2d96c752bd
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Abstract The reflection coefficient of a microwave surface wave incident at the termination of a metasurface is explored. Two different surface types are examined. One is a square array of square metallic patches on a dielectric-coated metallic groun
Externí odkaz:
https://doaj.org/article/ba9ff734f0cb4723bc9f7b97bfdbeec4
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043129 (2021)
A novel metasurface comprised of capped helices arranged as a hexagonal array that supports a broadband near-isotropic negative-index microwave surface-wave is designed, manufactured, and experimentally characterized. The surface-mode dispersion is s
Externí odkaz:
https://doaj.org/article/0e3d24a6e0cf48828a77da2ff6ad7ee7
Autor:
L. Parke, I. R. Hooper, R. J. Hicken, C. E. J. Dancer, P. S. Grant, I. J. Youngs, J. R. Sambles, A. P. Hibbins
Publikováno v:
APL Materials, Vol 1, Iss 4, Pp 042108-042108 (2013)
A cold-pressing technique has been developed for fabricating composites composed of a polytetrafluoroethylene-polymer matrix and a wide range of volume-fractions of MnZn-ferrite filler (0%–80%). The electromagnetic properties at centimetre waveleng
Externí odkaz:
https://doaj.org/article/4af14a38207c4425b7a70409caccd147
Publikováno v:
Physical Review B. 107
We design, simulate, and experimentally characterize an acoustic metasurface comprising of a 1D array of open, sound-hard, cavities, modulated with beyond-nearest-neighbor (BNN) couplings in the form of additional connecting cavities embedded beneath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49cb669a434e510eab81e1cc76421dd1
https://doi.org/10.1103/physrevb.107.144110
https://doi.org/10.1103/physrevb.107.144110
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Scientific Reports
Scientific Reports
The acoustic surface modes supported by a partly covered periodic meander groove structure formed in an assumed perfectly rigid plate are investigated. This allows one to create a slower acoustic surface wave than can be achieved with the same uncove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::feab46ce1d931bc1b59bed66dbe1e4ab
https://doaj.org/article/b1c4f54a91944d57a7221b2d96c752bd
https://doaj.org/article/b1c4f54a91944d57a7221b2d96c752bd
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Scientific Reports
Scientific Reports
The reflection coefficient of a microwave surface wave incident at the termination of a metasurface is explored. Two different surface types are examined. One is a square array of square metallic patches on a dielectric-coated metallic ground plane,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::100c88ac9df98fbf558d0c44eff0bc87
https://doaj.org/article/ba9ff734f0cb4723bc9f7b97bfdbeec4
https://doaj.org/article/ba9ff734f0cb4723bc9f7b97bfdbeec4
Publikováno v:
Physical Review B. 104
Designer mode dispersions with properties such as negative or zero group velocities have applications in tailored wave propagation and energy redistribution. The modes of elastic plates can readily exhibit such phenomena by virtue of their bulk elast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e42fc6cd301794baa592def31298dd3c
https://doi.org/10.1103/physrevb.104.045105
https://doi.org/10.1103/physrevb.104.045105