The recently proposed artificial media with negative magnetic permeability and left-handed metamaterials are revisited at the light of theory bi(iso/aniso)tropic media. In particular, existence bianisotropic effects in those materials is investigated, making use an approximate model. Some unexplained properties electromagnetic-wave propagation through these media, revealed by closer inspection previous numerical simulations experimental work, highlighted. It shown that peculiarities properly...

The electromagnetic theory of diffraction and the Babinet principle are applied to design artificial metasurfaces metamaterials. A new particle, complementary split rings resonator, is proposed for with high frequency selectivity planar metamaterials a negative dielectric permittivity. Applications in fields selective surfaces polarizers, as well microwave antennas filter design, can be envisaged. tunability all these devices by an dc voltage also achievable if particles etched on...

This paper develops a quasi-analytical and self-consistent model to compute the polarizabilities of split ring resonators (SRRs). An experimental setup is also proposed for measuring magnetic polarizability these structures. Experimental data are provided compared with theoretical results computed following model. By using local field approach, applied obtaining dispersion characteristics discrete negative permeability left-handed metamaterials. Two types SRRs, namely, so-called edge...

In this letter a super-compact stopband microstrip structure is proposed. The frequency gap produced by an array of complementary split ring resonators (CSRRs)-a concept proposed here for the first time-etched on ground plane. This behavior interpreted as due to presence negative effective dielectric permittivity in vicinity resonance. resulting device produces deep rejection band with sharp cutoff, and pass that exhibits very low losses good matching. Due sub-lambda operation CSRRs,...

Dedicatory. Acknowledgements. Preface. 1. The electrodynamics of left-handed media. 1.1. Wave propagation in 1.2. Energy density and group velocity. 1.3. Negative refraction. 1.4. Fermat principle. 1.5. Other effects 1.5.1. Inverse Doppler effect. 1.5.2. Backward Cerenkov radiation. 1.5.3. Goos-Hanchen shift. 1.6. Waves at interfaces. 1.6.1. Transmission reflection coefficients. 1.6.2. Surface waves. 1.7. through slabs. 1.7.1. 1.7.2. Guided 1.7.3. leaky complex 1.8. Slabs with...

It is found that there exist composite media exhibit strong spatial dispersion even in the very large wavelength limit. This follows from study of lattices ideally conducting parallel thin wires (wire media). In fact, our analysis reveals description this medium by means a local dispersive uniaxial dielectric tensor not complete, leading to unphysical results for propagation electromagnetic waves at any frequencies. Since non--local constitutive relations have been usually considered past as...

At microwave frequencies, hollow metallic waveguides behave in certain aspects as a "one-dimensional plasma." This feature will be advantageously used for simulating the propagation of electromagnetic (EM) waves left-handed metamaterials provided waveguide is periodically loaded with split ring resonators. It shown that EM transmission this structure feasible within frequency band even if transverse dimensions are much smaller than associated free-space wavelength. effect can qualitatively...

A metallic planar particle, that will be called spiral resonator (SR), is introduced as a useful artificial atom for magnetic media design and fabrication. simple theoretical model which provides the most relevant properties parameters of SR presented. The validated by both electromagnetic simulation experiments. applications SR's include negative permeability (NMPM) left-handed-media (LHM) design. main advantages such purpose are small electrical size at resonance, absence magnetoelectric...

In this letter, a planar left-handed propagating medium consisting of coplanar waveguide (CPW) inductively coupled to split ring resonators (SRR) and periodically loaded with narrow metallic wires is proposed. The make the structure behave as microwave plasma negative effective permittivity which covers broad frequency range. permeability required achieve wave propagation provided by rings in vicinity their resonant frequency. result allows band. transmission coefficient measured fabricated...

A novel compact stop band filter consisting of a 50 /spl Omega/ coplanar waveguide (CPW) with split ring resonators (SRRs) etched in the back side substrate is presented. By aligning SRRs slots, high inductive coupling between line and rings achieved, result sharp narrow rejection vicinity resonant frequency rings. In order to widen filter, several pairs tuned at equally spaced frequencies within desired gap are cascaded. The response measured fabricated prototype device exhibits pronounced...

Extraordinary optical transmission of light or electromagnetic waves through metal plates periodically perforated with subwavelength holes has been exhaustively analyzed in the last ten years. The study this phenomenon attracted attention many scientists working fields optics and condensed matter physics. This confluence given rise to different theories, some them controversial. first theoretical explanation was based on excitation surface plasmons along metal-air interfaces. However, since...

The main aim of this paper is to demonstrate the potentiality sub-wavelength resonators, namely, split-ring complementary and related structures suppression undesired spurious bands in microwave filters, a key aspect improve their rejection bandwidths. relevant characteristics cited resonators are dimensions (which can be much smaller than signal wavelength at resonance) high-Q factor. This allows us design stopband with significant levels, few stages, small dimensions, which integrated...

In this letter, spurious passband suppression in microstrip coupled line band pass filters by means of split ring resonators (SRRs) is demonstrated for the first time. By etching SRRs upper substrate side, close proximity to conductor strip, strong magnetic coupling between and rings arises at resonant frequency SRRs. This inhibits signal propagation vicinity that frequency, allowing rejection undesired passbands properly tuning To test novel technique, we have designed fabricated two...

It is demonstrated that the resonant frequency of split ring resonators (SRRs) can be tuned using varactor diodes. The resulting particle, which called a varactor-loaded resonator (VLSRR), applied to design tunable notch filter at S-band. device consists on microstrip transmission line with VLSRRs placed both sides conductor strip. Owing proximity particles rings are excited and arises. shown simply two pairs, rejection levels above 20 dB achieved in 0.5 GHz tuning interval centred 2.85 GHz....

In this paper, the behavior at resonance of split ring resonators (SRRs) and other related topologies, such as nonbianisotropic SRR broadside-coupled SRR, are studied. It is shown that these structures exhibit a fundamental resonant mode (the quasistatic resonance) higher-order modes which to dynamic processes. The excitation by means properly polarized time varying magnetic and/or electric fields discussed on basis resonator symmetries. To verify electromagnetic properties resonators,...

We propose an efficient approach for tuning the transmission characteristics of metamaterials through a continuous adjustment lattice structure and confirm it experimentally in microwave range. The concept is rather general applicable to various as long effective medium description valid. demonstrated metamaterial response highly desirable number emerging applications metamaterials, including sensors, filters, switches, realizable wide frequency

A planar near-field magnetoinductive lens operating in the microwave range is presented. The proposed device consists of two parallel arrays metallic broadside coupled (BC-) split ring resonators (SRRs), or BC-SRRs. Power coming from a point-like source located front focused into receiver free space behind device. This focus clearly removed back side lens, and has size which an order magnitude smaller than wavelength incoming radiation. imaging properties mainly relies on excitation surface...

In this work a mu=-1 metamaterial (MM) lens for magnetic resonance imaging (MRI) is demonstrated. MRI uses surface coils to detect the radiofrequency(RF) energy absorbed and emitted by nuclear spins in imaged object. The proposed MM manipulates RF field detected these coils, so that coil sensitivity spatial localization substantially improved. Beyond specific application, we feel reported results are experimental confirmation of new concept manipulation MRI, which paves way many other...

A new LC series element based on a modified version of the split rings resonator introduced in is proposed. Owing to its small electrical size, open ring (OSRR) very attractive for compact bandpass filter design. As an example, we have designed and fabricated produce around resonance frequency employed OSRRs. The bandwidth controlled by length transmission lines connecting Sharp deep out-of-band rejection achieved cascading several Circuit theory electromagnetic simulations reasonably agree...

Materials showing electromagnetic properties that are not attainable in naturally occurring media, so-called metamaterials, have been lately, and still are, among the most active topics optical materials physics engineering. Among these properties, one of attractive ones is sub-diffraction resolving capability predicted for media having an index refraction −1. Here, we propose a fully three-dimensional, isotropic metamaterial with strong electric magnetic responses regime, based on spherical...

A self-complementary metasurface is studied in this paper. The a 2-D periodical arrangement of unit cells formed by metallic printed split ring resonator and its complementary counterpart. It demonstrated that structure behaves like very selective band-pass filter for certain linear polarization while band-stop filtering achieved the orthogonal over same frequency range. This idea opens door to new class surfaces made connected unconnected elements, whose properties are mechanically tunable...

A new type of compact band pass filters based on planar structures with three metal levels is proposed. The central layer consists a coplanar waveguide (CPW) periodic wire connections between the strip and ground planes. In upper lower levels, split ring resonators (SRRs) are etched aligned slots. wires make structure to behave as microwave plasma, negative effective permittivity covering wide frequency range. SRRs, which magnetically coupled CPW, provide magnetic permeability in narrow...