[PDF] Top 20 El diseño artístico como estrategia para el aprendizaje de las funciones

... a negative index metamaterial (NIM) superstrate is designed and cooperated with the filtenna to produce miniaturize communication front end for gain enhancement without any substantial increase ... See full document

... stub- loaded SIR to produce tunable dual-band negative refractive ...proposed structure exhibits two regions with negative real refractive index, n, ...with negative indices at ... See full document

... line loaded with one or more MTM structures need to be considered to avoid the lack of coupling due to the complete cancellation between electric and magnetic fields [6, ...as negative permeability MTMs ... See full document

... the metamaterial antennas published ...experiencing negative gain problem consequently at this resonant frequency antenna will not be operational ... See full document

... these figures that the structure overall behaves as bandpass filter and its passband narrows with increase in the fractionality of either of the half spaces. Moreover, it is noted that the passband transmittance ... See full document

... of metamaterial (MTM), which is artificial material engineered with microscopic structures produce properties that may not be found in nature, drastic reduction in antenna dimensions have been reported ...SNG ... See full document

... In practice, different natural as well as synthetic textile materials such as nylon, cotton, Jean, polyester, Teflon, Nomex, liquid crystal polymer (LCP), fleece fabric etc. are used as a substrate to manufacture the ... See full document

... proposed metamaterial patch antenna are simu- lated and ...terial structure is proposed at a height of ...antenna.This structure produces a better performance com- pared to simple ...the ... See full document

... symmetrical structure, and both represent coupling coefficient between two an- ...decoupling structure has worse isolation es- pecially around 5 and 9 ...decoupling structure keeps good impedance ... See full document

... The unit cell is simulated by HFSS by using PEC and PMC boundary condition. The electric field is normal to the “capacitor plates” and thus couples to the capacitive element. The PEC boundary condition is applied to ... See full document

... a metamaterial negative-index ...the negative-index defect is sandwiched by two quarter- wave dielectric ...the negative-index of the defect have been numerically ... See full document

... patch filtenna structures (dual/triple/forth) have been proposed and ...presented filtenna structures are mounted on FR4-substrate, and resonate within the band from ...ground Structure), the ... See full document

... antenna loaded with metamaterial and fed with microstrip line by thoroughly revisit the theory of patch antennas in terms of resonance frequency and VSWR with respect to slot length and slot width with the ... See full document

... Effects of some important structure parameters on impedance of the proposed antenna are investigated. Firstly, the comparison of the return loss between antenna with and without defected ground is shown in Fig. 3. ... See full document

... ENZ metamaterial-loading, is it by no means to discourage the research on metamaterial, indeed it indirectly encourage to research on a better type of metamaterial to improve the horn ... See full document

... wire structure to the structural parameters in infrared region have been studied systematically ...and negative refractive index also could be found by selecting these structure parameters ... See full document

... differential filtenna for microwave systems at ...This filtenna exhibits 5% bandwidth with a 3-pole Chebyshev ...The filtenna uses a square patch as radiating element combined with λ/2 ... See full document

... a negative refractive index [8]-[13] open up an exceptional possibility to design novel types of devices where electromagnetic waves propagate in a nonconventional ...magnetic structure with a ... See full document

... The mechanism of perfect absorptions is clearly il- lustrated by the field distributions at the resonances. Because of the well-known metal-insulator-metal (MIM) structure [3, 32, 36–38] shown in Fig. 1, local- ... See full document

... model. Metamaterial structures are widely studied for multiple applications, and it is observed that metamaterial structure response is bandwidth limited, so an approach is attempted to design ... See full document