IEEE Organizations related to Electromagnetic Metamaterials

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Conferences related to Electromagnetic Metamaterials

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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science


2020 IEEE Global Engineering Education Conference (EDUCON)

The IEEE Global Engineering Education Conference (EDUCON) 2020 is the eleventh in a series of conferences that rotate among central locations in IEEE Region 8 (Europe, Middle East and North Africa). EDUCON is one of the flagship conferences of the IEEE Education Society. It seeks to foster the area of Engineering Education under the leadership of the IEEE Education Society.


2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

CLEO®/Europe will showcase the latest developments in a wide range of laser and photonics areas including laser source development, materials, ultrafast science, fibre optics, nonlinear optics, terahertz sources, high-field physics, optical telecommunications, nanophotonics, biophotonics.EQEC will feature the fundamentals of quantum optics, quantum information, atom optics, ultrafast optics, nonlinear phenomena and self-organization, plasmonics and metamaterials, fundamental nanooptics, theoretical and computational photonics.


2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)

The 21th edition of the ICEAA is coupled to the 9th edition of the IEEE-APWC. The two conferences consist of invited and contributed papers, and share a commonorganization, registration fee, submission site, workshops and short courses, and social events.The proceedings of both conferences will be published on IEEE Xplore


2019 International Workshop on Antenna Technology (iWAT)

The International Workshop on Antenna Technology (iWAT) is an annual forum for the exchange of information on the progress of research and development in innovative antenna technology. It especially focuses on small antennas and applications of advanced and artificial materials to the antenna design. At iWAT, all the oral presentations are delivered by invited prominent researchers and professors. iWAT has a particular focus on posters by which authors have the opportunity to interact with leading researchers in their fields. iWAT is a series of annual international antenna workshops which has been held in Singapore (2005), White Plaines, USA (2006), Cambridge, UK (2007), Chiba, Japan (2008), Santa Monica, USA (2009), Lisbon, Portugal (2010), Hong Kong, China (2011), Tucson, USA (2012), Karlsruhe, Germany (2013), Sydney, Australia (2014), South Korea (2015), Orlando, USA (2016), Athens, Greece (2017), Nanjing, China (2018).


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Periodicals related to Electromagnetic Metamaterials

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Most published Xplore authors for Electromagnetic Metamaterials

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Xplore Articles related to Electromagnetic Metamaterials

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Transmission-line metamaterials and their relation to the transmission-line matrix method

2016 IEEE MTT-S International Microwave Symposium (IMS), 2016

We review the connection between transmission-line metamaterials (TL-MTMs) and the transmission-line matrix (TLM) method for solving Maxwell's equations numerically. We show historically how the two disciplines evolved and how they are intimately related to each other We use the TLM method to reveal and explain the physics of the negative index property characterizing certain classes of transmission-line metamaterials as well ...


Design of non-singular two-dimensional layered cloaks mapped from small areas

2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 2016

A singular coordinate transformation leads to singular materials in a transformation-based cloak. If a non-singular transformation is used, the invisibility is affected; it is also influenced by the homogenization process. In this work we investigate these two influences in two-dimensional circular cylindrical cloaks, obtained from different non-singular mappings. Considering a further local search optimization, we also conclude how big the ...


Acoustic extrodinary transmission based on density-near-zero metamaterials

2016 Progress in Electromagnetic Research Symposium (PIERS), 2016

Acoustic Zero-index metamaterials (ZIMs) have attracted much attention recently due to their rich physics and practical applications. The principle of ε-near-zero electromagnetics metamaterials equals valid for that of density-near-zero (DNZ) acoustic metamaterials. In this paper, we design a simple 2D membrane-network structure behaving as DNZ metamaterials for airborne sound. The lumped-circuit model of the metamaterial unit cell exhibits a significant ...


Plenary Talk: Applications of electromagnetic metamaterials to vacuum electronics devices and advanced accelerators

IEEE International Vacuum Electronics Conference, 2014

The development of high-frequency vacuum electronics structures is hampered by the enormous technological challenges of high-precision three-dimensional machining required for shorter wavelengths. I will describe the possibilities of employing electromagnetic metamaterials (MTMs) to address some of these challenges. In this talk I will first review some of the recent progress in metamaterials-inspired vacuum electronics and accelerating structures. I will then ...


Short Circularly Polarized Metaline Antenna

2018 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 2018

A short metaline composed of a small number of unit cells, Ncell, is investigated. One end of the short metaline is excited and the other end is terminated using a resistive load. The analysis reveals that the metaline radiates a circularly polarized (CP) wave. It is found that a current with a negative propagation phase constant along the metaline generates ...


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Educational Resources on Electromagnetic Metamaterials

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IEEE-USA E-Books

  • Transmission-line metamaterials and their relation to the transmission-line matrix method

    We review the connection between transmission-line metamaterials (TL-MTMs) and the transmission-line matrix (TLM) method for solving Maxwell's equations numerically. We show historically how the two disciplines evolved and how they are intimately related to each other We use the TLM method to reveal and explain the physics of the negative index property characterizing certain classes of transmission-line metamaterials as well as to inspire new research avenues in TL-MTMs.

  • Design of non-singular two-dimensional layered cloaks mapped from small areas

    A singular coordinate transformation leads to singular materials in a transformation-based cloak. If a non-singular transformation is used, the invisibility is affected; it is also influenced by the homogenization process. In this work we investigate these two influences in two-dimensional circular cylindrical cloaks, obtained from different non-singular mappings. Considering a further local search optimization, we also conclude how big the mapping scale can be, without having too much scattering.

  • Acoustic extrodinary transmission based on density-near-zero metamaterials

    Acoustic Zero-index metamaterials (ZIMs) have attracted much attention recently due to their rich physics and practical applications. The principle of ε-near-zero electromagnetics metamaterials equals valid for that of density-near-zero (DNZ) acoustic metamaterials. In this paper, we design a simple 2D membrane-network structure behaving as DNZ metamaterials for airborne sound. The lumped-circuit model of the metamaterial unit cell exhibits a significant resonance. Further parameter retrievals find that the effective mass density approaches zero at the frequency near the resonance. By using both full-wave simulations and lumped-circuit simulations, the unique transmission property of the metamaterial slab at the DNZ frequency is demonstrated in which the phase velocity and the wavelength approach infinity. We further investigate the extraordinary sound transmission induced by the proposed DNZ metamaterials such as efficient cloaking effect, perfect transmission in waveguides with sharp bends and wave splitter. Different from the previous schemes, no extreme parameters are required and the unit cell of membrane-network DNZ metamaterial is in deep subwavelength scale. The microstructure of the membrane network is comparatively simple, and its lump- circuit model provides a convenient way to construct the unit cell for achieving DNZ at the designed frequency. The near-zero effective density has been ascribed to the first order of the air-membrane resonance and hence the disappearance of density because the restoring force from the membrane adds a negative term to the effective mass.

  • Plenary Talk: Applications of electromagnetic metamaterials to vacuum electronics devices and advanced accelerators

    The development of high-frequency vacuum electronics structures is hampered by the enormous technological challenges of high-precision three-dimensional machining required for shorter wavelengths. I will describe the possibilities of employing electromagnetic metamaterials (MTMs) to address some of these challenges. In this talk I will first review some of the recent progress in metamaterials-inspired vacuum electronics and accelerating structures. I will then describe two types of metamaterials specifically designed to interact with electron beams. One is the Negative Index Meta-Waveguide (NIMW) [1] that satisfies the following conditions: (a) it is essentially “open” to enable unobstructed electron beam propagation; (b) it supports sub-wavelength modes polarized along the direction of the beam propagation to enable efficient interaction with sub-relativistic (<;20keV) electrons; and (c) it is amenable to simple and standard micro-fabrication that does not involve volumetric machining or high-aspect etching because it consists of a stack of metal planes patterned using complementary metamaterial elements (e.g., split rings).

  • Short Circularly Polarized Metaline Antenna

    A short metaline composed of a small number of unit cells, Ncell, is investigated. One end of the short metaline is excited and the other end is terminated using a resistive load. The analysis reveals that the metaline radiates a circularly polarized (CP) wave. It is found that a current with a negative propagation phase constant along the metaline generates a tilted CP radiation (a) beam in the backward direction, even when Ncell=2.

  • Discrete modified planar luneburg lens antenna

    This paper discusses a discrete realization of a planar Luneburg lens including the modification of the original Luneburg variation of the refractive index profile in order to locate all feed loci on a straight line. A lens prototype operating at 5 GHz, using 2047 unit cells, is built and measured. Feeding the antenna at different cells of the feed line, off-axis beam steering to up to 60° is demonstrated experimentally.

  • Beam-steering antennas using metalines

    Four linearly-polarized (LP) metalines are adopted for realizing an LP beam- steering antenna, where one of the four feed points is activated (connected to a source) and the remaining three feed points are non-activated (open- circuited). Similarly, an antenna system composed of four circularly-polarized (CP) metalines is investigated to realize a CP beam-steering antenna. The LP and CP waves radiate in the backward direction relative to the activated feed point.

  • Characteristics on negative group delay of embedded multi-stage F-SIR type transmission line structure with open stub resonator

    Negative group delay characteristics can be used to improve signal-integrity performance such as equalizer for compensation of the group delay of transmission line (TL). This paper newly proposed the embedded multi-stage Folded-Stepped Impedance Resonator (F-SIR) structure with open-stub resonator, in order to establish negative group delay and slope characteristics. The concept of the proposed TL is based on the combination of resonance and anti- resonance due to open-stub resonator in order to establish wideband negative group delay and negative slope characteristics. The basic concept is validated by numerical simulation.

  • Terahertz Reflecting and Transmitting Metasurfaces

    Bridging the terahertz gap requires synergism between the microwave and photonic communities. Advances in each of these two communities are often complementary but sometimes overlooked. One example is the manipulation of waves, known as anomalous diffraction via the use of metamaterials. This is achieved by controlling the surface impedance of each pixel at the interface of two different materials or alternately the phase and magnitude of the wave diffracted off the pixel. In this paper, a review of developments in wave manipulation from microwave to optical frequencies is presented, together with our new results in the terahertz regime. Generation of phase curves for pixel design requires a priori information on material properties at terahertz frequencies. Fabrication of terahertz devices entails micromachining in the clean room while their experimental validation demands both amplitude and phase information. Through judicial selection of practices in microwave and photonic communities, we can further the exploration of wave phenomena at terahertz frequencies.

  • Design Considerations on Complementary Split Ring Resonator-Loaded Waveguides for Wakefield Generation

    In this paper, we present design considerations of metamaterial (MTM)-based structures to address practical issues relating to operation in particle accelerators and at high power in general. To the best of our knowledge, this is the first time these problems have been addressed. We focus on the structure proposed in our earlier paper based on a complementary split ring resonator (CSRR)-loaded waveguide for applications in accelerator science, as a backward propagating Cherenkov detector. Through the modification of the metasurface thickness, CSRR ring width and ring curvature, a number of possible waveguides are investigated to increase structural integrity and robustness, maintain the dispersion relation, and reduce the number of hybrid modes. Accurate numerical simulations are performed to compare the different setups with the original structure. Both the longitudinal and transverse wakefield excitations are analyzed to investigate how these modifications affect beam coupling. A suitable design is successfully identified and offers a promising opportunity for the development of MTMs for high-power beam-based applications.



Standards related to Electromagnetic Metamaterials

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