Tunable microwave metamaterial structures matthias. Such lenses, made from lightwarping metamaterials, might someday replace the heavier glass lenses used in everything. Metamaterials have become one of the most important emerging technologies in the scientific community due to its unusual electromagnetic properties. While advancements in the field over the past two centuries have done much to transform it from the former category to the latter, much of the lens design process remains encapsulated in the experience and knowledge of industry veterans. Numerical methods for metamaterial design download ebook. In this paper, a novel design for a metamaterial lens superlens based on a photonic crystal pc operating at visible wavelengths is reported. We use this metamaterial to realize a 2d broadband gradient index acoustic lens in air.
Every step from setup specifications to finalizing the design for production is discussed in a straight forward, tangible way. Modern lens design mcgrawhill professional engineering. Some new developments covered in the book include a rapid design method for inhomogeneous metamaterials, microwave and rf applications of metamaterials and dynamic. We design an alldielectric luneburg lens as an adiabatic spacevariant lattice explicitly accounting for finite film thickness. Some new developments covered in the book include a rapid design method for inhomogeneous metamaterials, microwave and. Special emphasis is given to tunable elements and their advantages in terms of feeding network simplification.
Design of an acoustic metamaterial lens using genetic. It is clearly observed that the antenna gain and bandwidth has improved significantly by employing proposed ssrr based metamaterial structure at 3. New frontiers are being explored as intrinsic limitations challenge the scaling of microwave metamaterial designs to optical frequencies. Metamaterialbased thin planar lens antenna for spatial. Many lens designs have been proposed that go beyond the diffraction limit in some way, but constraints and obstacles face each of them. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Theory, design, and applications goes beyond lefthanded materials lhm or negative index materials nim and focuses on recent research activity. Some new developments covered in the book include a rapid design method for inhomogeneous metamaterials, microwave and rf applications of metamaterials and. Originally proposed as a way of tailoring medias electromagnetic and optical.
Devoted mainly to metamaterials that can be characterized by a negative effective permittivity andor permeability, the book includes a wide. Click download or read online button to get numerical methods for metamaterial design book now. The first general textbook to offer a complete overview of metamaterial theory and its microwave applications metamaterials with negative parameters represents the only unified treatment of metamaterials available in one convenient book. Stewart, magnetism from conductors and enhanced nonlinear phenomena, ieee trans. Oct 31, 2018 in this paper, a novel design for a metamaterial lens superlens based on a photonic crystal pc operating at visible wavelengths is reported. The theory underlying the design of a metamaterial lens is presented followed by simulation and experimental results. Qfl5 magnifying metamaterial lens design by coordinate. New metamaterial lens focuses radio waves mit news. Metamaterials theory, design, and applications tie jun. A superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. A practical guide to lens design focuses on the very detailed practical process of lens design. Pdf enhancement of microwave imaging using a metamaterial lens. This book presents original findings on tunable microwave metamaterial structures, and describes the theoretical and practical issues involved in the design of metamaterial devices. Characteristics, design and microwave applications article pdf available september 2010 with 1,781 reads how we measure reads.
The main objective of this book is to present indepth. The antenna consists of a planar lens and a linear array of receivetransmit elements. Optimizing antenna gain with a metamaterial filter the. The metamaterial unit cell using via and microstrip gaps is focused here. The theory of characteristic modes is used to analyze the metamaterial lens, in order to provide an insight into the. This chapter attempts to give a brief overview of the history of electromagnetic photonic metamaterials, important developments, and main concepts in the field. In terms of aberration theory, metamaterials present the lens designer with. This chapter contains the design and simulation of dng metamaterial antennas using transmission line approach. Electromagnetic metamaterials download ebook pdf, epub. We describe an allanalytical approach to compensate for the finite height of subwavelength dielectric structures in the passband regime. Metamaterials handbook two volume slipcase set 1st. Oct 29, 20 a lens with ten times the resolution of any current lens, making it a powerful new tool for the biological sciences has been developed by researchers at the university of sydney.
The main purpose of using the drude model is to allow a user of cst microwave studio to indirectly set the values of. Metamaterials with negative parameters represents the only unified treatment of metamaterials available in one convenient book. Metamaterial design technique will be discussed as a step to design novel structures that allow further improvements in spatial resolution. We then apply this methodology to several design examples such as flat gradedindex digital lens, cylindrical scatterers, digital constructs for epsilonnearzero enz supercoupling58, and digital hyperlens911, highlighting the power and simplicity of this methodology and algorithm. International journal of engineering trends and technology ijett volume 19 number 6 jan 2015. The computer program oslo was used to design the work, but the writeups are programneutral. Metamaterials gain their unusual properties from the particular design of their. Metamaterial research continues to expand quite rapidly, making it almost impossible to faithfully cover the field even with a reasonably sized book. The first general textbook to offer a complete overview of metamaterial theory and its microwave applications. In a separate but related study, a metamaterial lens was designed and analyzed through the drude formulation and a concept to improve the directivity of an antenna through a special metamaterial lens design was presented. In 2003, it was suggested that a metamaterial constructed with alternating, parallel, layers of n. Metamaterial lens is thinner than the light it bends and. Nov 14, 2012 ehrenberg used the unit shape as the basis for his concave lens, creating the rough shape from more than 4,000 unit cells, each only a few millimeters wide. The lens antenna consists of twelve capacitively coupled unit cells distributed along a ring and illuminated by an openended circular waveguide with a metallic resonant ring.
Hisamatsu nakano is professor in the department of electrical and electronics, science and engineering at hosei university, tokyo, japan. Metamaterials theory, design, and applications tie jun cui. Design of square split ring resonator shaped metamaterial. Single port biosensor design using metamaterial split ring resonator. This book deals with optical metamaterials artificially structured materials with. Design of an acoustic metamaterial lens using genetic algorithms dennis li, lucian zigoneanu, bogdanioan popa, and steven a. Pdf design and characterization of metamaterials for optical and. However, recently, many efforts to design metamaterials that are free. Negativeindex metamaterial array configuration, which was constructed of copper splitring resonators and wires mounted on interlocking sheets of fiberglass circuit board. Metamaterials lefthanded materials negative refraction optical. A metamaterial mtmbased thin planar lens antenna is proposed for spatial beamforming and multibeam massive multipleinput multipleoutput systems. This unit cell is a type of special resonant structure, and its dimensions are optimized delicately to ensure that the metamaterial lens can enhance the antenna gain without deteriorating the circular polarization. International journal of engineering trends and technology ijett volume 19 number 6 jan 2015 volume 19 number 6 jan 2015 issn.
It is an effective medium made up of a multilayer stack, which exhibits birefringence, n 2. Although veselago first proposed a negative index medium in 1968, a new concept of a perfect lens proposed by pendry started to draw great attention after about 30 years, which enabled the scientific community to reunderstand and examine the abnormal electromagnetic properties and cloaking effects of metamaterial media. Jun 02, 2016 a lens has been built that is thinner than the waves of light it focuses. These nine chapters explore many aspects of phononic crystals and acousticelastic metamaterials, including sound. A lens has been built that is thinner than the waves of light it focuses. By controlling the reactivity of atoms and molecules to create inclusions and by controlling the positioning of these nanoinclusions, nanostructured metamaterials can. Consequently, during the last years, a huge deal of efforts has been concentrated in order to design functional components and devices based on metamaterials for many potential applications. We present in this thesis the development of a bidirectional computational platform for metamaterial structural design. Therefore, this book can be used with any lens design software. Our experiment shows the promise of designing compact and lightweight ultrasound imaging elements.
Analysis and design of a metamaterial lens antenna using. Detailing design methods for a variety of lens forms, this book shows that fixed focus and zoom lenses can be optimized, starting from planeparallel surfaces, in a brief time on a modern fast pc compared to traditional tools that. A new singlelayer metamaterial lens antenna aimed to operate at 10 ghz is proposed in this paper. This can revolutionize the field of optical imaging simply by including a meta lens as a standard addon tool for microscopes. Theory, design and applications focuses on the most recent research activity in. It further serves to generate metamaterial unit cells which satisfy predetermined sets of material. Mit produces new metamaterial that acts as a lens for radio waves. Modern lens antennas for communications engineering. This contribution focuses on the physical design of a metamaterial lens. To fabricate his design, ehrenberg utilized 3d printing, building a lens layer by intricate layer from a polymer solution. Lefthanded metamaterial introduction resonant approach transmission line approach composite rightlefthanded metamaterial metamaterial based microwave devices dominant leakywave antenna small, resonant backward wave antennas dualband hybrid coupler negative refractive index flat lens future trends summary.
May 28, 20 the metamaterial has an angleindependent negative refractive index, enabling it to act as a flat lens. The roughly concave lens is formed from 4,000 of these cells. Metamaterial superlenses operating at visible wavelength for. Field guide to lens design 2012 bentley publications. The process of designing lenses is both an art and a science. Theory, design, and applications goes beyond lefthanded materials. Harvard researchers develop ultrathin metamaterial lens. Molecules free fulltext metamaterial lensing devices. This platform serves to extract, from a given geometry, the bulk material properties of the corresponding metamaterial. Lefthanded metamaterials for microwave engineering. Then, we present the experimental realization and characterization of a twodimensional 2d broadband acoustic metamaterial with strongly anisotropic e. Here we discus different type of metamaterials composite structure used in antenna engineering. The study of artificial electromagnetic materials, or metamaterials, breaks down the traditional frontiers to combine disciplines such as physics and microfabrication, electromagnetic theory and computational methods, optics and microwaves, and nanotechnology and nanochemistry.
Metamaterial superlenses operating at visible wavelength. Focusing ultrasound with acoustic metamaterial network. Professor nakano received the 2010 prize for science and technology from japans minister of education, culture, sports, science, and technology, and is the holder of 78 patents, author of over 300 papers, and a life fellow of the ieee. Physics and engineering explorations gives readers a clearly written, richly illustrated introduction to the most recent research developments in the area of electromagnetic metamaterials. This site is like a library, use search box in the widget to get ebook that you want. Metamaterial synthesis has several traits in common with inversescattering problems 8, and likewise poses some formidable computational challenges. Compared with the conventional materials, metamaterials exhibits some specific features which. The theory of characteristic modes is used to analyze the metamaterial lens, in order to provide an insight into.
Included here is an introduction to optical transformation theory, revealing invisible cloaks, em concentrators, beam splitters, and newtype antennas, a presentation of general theory on artificial metamaterials composed of periodic. Devoted mainly to metamaterials that can be characterized by a negative effective permittivity andor permeability, the book includes a wide overview of the. Review on microwave metamaterial structures for near. Transformationopticsbased design of a metamaterial. Cummera department of electrical and computer engineering, duke university, durham, north carolina 27708 received 29 november 2011. Reconfigurablefocus flat lens based on gradient index. They are made from assemblies of multiple elements fashioned from composite materials such as metals and plastics. Jun 03, 2016 at just 600 nanometers thick, the new lens material is 100,000 times lighter than a comparable lens from nikon, the team said. The process was repeated over multiple generations until the design became effective. This book begins with dng metamaterial concepts, simulations, and exper.
Cai ws, chettiar uk, kildishev av, shalaev vm 2008 designs for optical. Design examples of several widely used modern lenses are provided. Automatic and quasiautonomous computational methods and techniques is the first book that interactively describes the newest modern lens design tools. The intricate behavior of these novel metamaterials is interesting from both fundamental and practical point of view. Design of lowindex metamaterial lens used for wideband. Enhancement of microwave imaging using a metamaterial lens.
Click download or read online button to get electromagnetic metamaterials book now. The metamaterial used as a metallic mesh of thin wires for obtaining negative value of the effective permittivity can be expressed as. Theory, design and applications focuses on the most recent research activity in metamaterials, taking a reader beyond previously covered areas like lefthanded materials lhm and negative index materials lim. While the lens isnt the first designed from metamaterials, earlier.
It explores the fundamental physics, the designs, and the engineering aspects, and points to a myriad of exciting potential applications. This chapter describes the transmission line approach to realise metamaterial for designing resonating antennas. By controlling the reactivity of atoms and molecules to create inclusions and by controlling the positioning of these nanoinclusions, nanostructured metamaterials can been realised. To lower the insertion and reflection loss, the lens is formed by the twolayered ultrathin mtmbased surface separated with air and fed by substrate. The immense potential of refractive index engineering in metamaterials can be further exemplified by recent progress in the field of transformation optics that enabled novel opportunities in the design of gradedindex structures 150161. Analysis and design of a metamaterial lens antenna using the. A photonic metamaterial pm, also known as an optical metamaterial, is a type of. Design of thinfilm photonic metamaterial luneburg lens using. Tunable microwave metamaterial structures matthias maasch. Litchinitser, in fundamentals and applications of nanophotonics, 2016. Included here is an introduction to optical transformation theory, revealing. International journal of engineering trends and technology.
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