low permittivity dielectric substrate
Ultra-Compact Metamaterial Absorber with Low-Permittivity Dielectric Substrate
... We first add meander lines within the resonators while keep the outer ring size fixed to decrease the operating frequency of the MA (equivalent to reduce the electric size for a given frequency). The meander lines ...
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A PIN-Loaded Microstrip Patch Antenna with the Ability to Suppress Surface Wave Excitation
... Abstract—A circular microstrip patch antenna design is proposed for applications that require suppression of surface waves and lateral waves. The proposed design is composed of a circular patch loaded with a single ...
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Material-Loaded High Q-Factor Slot Resonator and Measurement of Relative Permittivity
... The geometric configuration of the proposed ground plane slot resonator is shown in Fig. 1. The structure consists of a 50 Ω microstrip line on the top layer and a rectangular slot is etched in the ground plane of ...
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Dielectric Slab Mode Antenna for Integrated Millimeter wave Transceiver Front ends
... planar dielectric lens on top of the grounded slab guide is capable of collimating the beam in the horizontal ...the substrate thickness, which in turn decreases the phase velocity of the guided wave in ...
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Effect of local A site strain on dipole stability in A6GaNb9O30 (A = Ba, Sr, Ca) tetragonal tungsten bronze relaxor dielectrics
... display relaxor behaviour in their dielectric response, i.e., a fre- quency dispersion in both the real and imaginary components of the complex permittivity. We observed that in these materials the dipole ...
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Measurable Dielectric Permittivity Range for TE and TM Modes in a Shielded Dielectric Resonator
... usable dielectric range for material ...the permittivity constant of the material until the resonant pattern of the mode under study can no longer ...of permittivity constant that can be measured ...
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DESIGN OF COMPACT ASYMMETRIC COPLANAR STRIP FED ANTENNAS FOR WLAN APPLICATIONS
... size, low profile, light weight, simple realization process and low manufacturing ...the substrate material, via different ways with low dielectric substrate, slotted patch ...
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Structure and dielectric properties of sol gel processed Ba (Fe1/2Nb1/2) O3 ceramics
... For dielectric measurements, the powder samples were pressed into pellets with a uniaxial pressure of 8 tons/cm 2 , and then sintered at 1100°C for 8 h, with a heating rate of ...
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Kinetic features of the oxidation of secondary alcohol by polymer supported chromic acid
... The oxidation of secondary alcohol was investigated to compare the polymer substrate supported reagent with a commercially available cross-linked polymeric reagent. The reagent supported on anion exchange resin ...
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Study of Effective Dielectric Permittivity and Capacitance for Finite Dielectric Thickness Coplanar Waveguide
... Fig. 4 (a) & (b) shows 2D & 3D model for FCPW respectively obtained through SONNET software simulation [17]. Simulation is done on Alumina and Roggers substrate with εr =9.8, loss tangent tanδ = 0.0002 and ...
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Numerical and Experimental Analysis of Wideband E-Shape Patch Textile Antenna
... antenna substrate layer. For the antenna substrate, a fleece fabric is chosen because of its high thickness and a low permittivity of ...well-defined substrate thickness and to keep the ...
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PREPARATION AND CHARACTERIZATION OF NANOCRYSTALLINE Ba(Ti0.96SnxZr0.04-x)O3 CERAMIC
... the dielectric loss due to its larger ionic size which expands the perovskite lattice whereas increase in its concentration induces a reduction in the average grain size, decreases the dielectric ...
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Left-Handed Materials Based on Crystal Lattice Vibration
... the dielectric sphere is equivalent to a magnetic dipole near the magnetic resonance mode and the magnetic field is mainly localized in the sphere as shown in Figure ...the dielectric sphere, the magnetic ...
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Dielectric permittivity modulation of liquid crystals for microwave applications
... 5 Dielectric tunability T (%, 3GHz) vs ∆n/ne (%, 589nm) for tested ...the dielectric anisotropy at microwave regime is correlated quite well with the birefringence in visible ...of dielectric ...
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Uncertainty Minimization in Permittivity Measurements in Shielded Dielectric Resonators
... real dielectric permittivity of a ...for low loss materials in view of the nature of the exact relations between permittivity, sample and cavity dimensions, measured resonant frequency and the ...
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Radar Scatter from Layered Media and Rough Surfaces
... It is apparent from the salinity profile of Figure 6 that there are three distinct regions. For the first two metres of the ridge, the salinity has a mid-level average value with high variability. From 2 to 3 m the average ...
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Optical, dielectric and magnetic properties of
... effect of Nd 3+ doping on the dielectric permittivity and magnetization in the wide frequency range.. 21.[r] ...
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Dielectric Behaviour of Pure and Dye Doped Nematic Liquid Crystal BKS/B07
... The dielectric parameters and have been meas- ured for a nematic liquid crystal BKS/B07 in the fre- quency range of 1 kHz to 10MHz for the temperature range of 70˚C to ...the dielectric ...
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Effective Permittivity Tensor for a Metal-Dielectric Superlattice
... the low-frequency band gap (0 < ω < ω 1 ) in the photonic band structure for modes propagating along the growth direction of the metal-dielectric superlattice ...
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An Elliptical Ring FSS Antenna excited with Microstrip Feed for Satellite Application
... The substrate used is FR4 epoxy with relative permittivity ...1, dielectric loss tangent ...the substrate is 1.6mm.Ground lies below substrate which is of negligible ...the ...
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