A broadband transformation-optics metasurface lens

X Wan, W Xiang Jiang, H Feng Ma, T Jun Cui - Applied Physics Letters, 2014 - pubs.aip.org
We present a transformational metasurface Luneburg lens based on the quasi-conformal
mapping method, which has weakly anisotropic constitutive parameters. We design the …

Effect of lossy thin-walled cylindrical food containers on microwave heating performance

H Zhu, J Su, F Yang, Y Wu, J Ye, K Huang… - Journal of Food …, 2023 - Elsevier
Cylindrical containers are commonly used in microwave food processing applications.
However, due to the shape effect, microwave energy mainly focuses in the center of the …

Pentamode material for underwater acoustic wave control

C Yi, L Xiaoning, X Ping, HU Gengkai - 力学进展, 2016 - lxjz.cstam.org.cn
Pentamode materials, made of conventional solids through microstructure de-sign, may
have acoustic property of complex fluid. Its superior capacity for underwater acoustic wave …

Experimental demonstration of a nonmagnetic metamaterial cloak at microwave frequencies

B Kanté, D Germain, A de Lustrac - Physical Review B—Condensed Matter …, 2009 - APS
Metamaterials have paved the way to unprecedented control of the electromagnetic field.
The conjunction with space coordinate transformation has led to a “relativity inspired” …

Discrete coordinate transformation for designing all-dielectric flat antennas

W Tang, C Argyropoulos, E Kallos… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
Transformation electromagnetics provides a practical approach to control electromagnetic
fields at will. Based on this principle, novel devices such as the invisible cloak have been …

Design of high-gain lens antenna by gradient-index metamaterials using transformation optics

I Aghanejad, H Abiri, A Yahaghi - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
Transformation of space coordinates can be used as a convenient tool for producing a
controlled electromagnetic field pattern. In this paper, using a conformal transformation, the …

Design and experimental demonstration of a high-directive emission with transformation optics

PH Tichit, SN Burokur, D Germain, A De Lustrac - Physical Review B …, 2011 - APS
With the explosion of wireless networks and automotive radar systems, there is an acute
need for new materials and technologies that would not only minimize the size of these …

Transformation optics inspired multibeam lens antennas for broadband directive radiation

Q Wu, ZH Jiang, O Quevedo-Teruel… - … on Antennas and …, 2013 - ieeexplore.ieee.org
Recent advancements in transformation optics (TO) and metamaterials have inspired
tremendous interest in the electromagnetic community, creating a variety of novel antennas …

Tunable bilayered metasurface for frequency reconfigurable directive emissions

SN Burokur, JP Daniel, P Ratajczak… - Applied Physics …, 2010 - pubs.aip.org
The directive emission from a bilayered metamaterial surface is numerically and
experimentally reported. The LC-resonant metasurface is composed of both a capacitive …

Waveguide taper engineering using coordinate transformation technology

PH Tichit, SN Burokur, A De Lustrac - Optics Express, 2010 - opg.optica.org
Spatial coordinate transformation is a suitable tool for the design of complex electromagnetic
structures. In this paper, we define three spatial coordinate transformations which show the …