High permittivity
Hybrid Microstrip Compact Bandpass Filter Using High Permittivity Substrate
... 0.4CaTiO 3 substrates. The 3-dB fractional bandwidth of the crosscoupled filter’s frequency response were 5.1% for Al 2 O 3 ceramic substrate and 4.5% for 0.6Sm(Co 1/2 Ti 1/2 )O 3 -0.4CaTiO 3 ceramic substrate. The ...
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Approaches for High Permittivity in Barium Titanate
... require high capacitance density, suitable breakdown voltage, and low production ...where high permittivity dielectric layers are synthesized on thin metal foils and subsequently laminated into ...
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Electrical Properties and Interfacial Studies of HfxTi1-xO2 High Permittivity Gate Insulators Deposited on Germanium Substrates
... and high performance have been achieved ...the permittivity of ...higher permittivity dielectric materials, such as titanium oxide (with k ~ ...The high dielectric constant of the titanium ...
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Performance Evaluation of Rectangular Microstrip Patch Antennas Loaded with Plastic and Barium Titanate Substrates at GSM 1800 MHz Band
... DOI: 10.4236/ojapr.2018.63004 41 Open Journal of Antennas and Propagation dB due to the presence of high permittivity substrate. This is the trade-off that has to be made in order to implement a smaller ...
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Genetic Algorithm Optimization for Microstrip Patch Antenna Miniaturization
... of high permittivity [1], Defected Microstrip Structure (DMS) [2], Defected Ground Structure (DGS) at the ground plane [3] or a combination of them, and various existing optimization algorithms such as ...
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Dimensional Effects on Densities of States and Interactions in Nanostructures
... of high- permittivity thin films or ...of high-permittivity thin films and testing the theory against image charge solutions will be discussed in ...
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Design of a bilayer ceramic capacitor with low temperature coefficient of capacitance.
... in permittivity for the different interfaces is shown in ...The permittivity drops significantly when there is no inner electrode or when the Au electrode interface is created from either Au foil or Au ...
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Effect Of Fly Ash Filler To Dielectric Properties Of The Insulator Material Of Silicone Rubber And Epoxy Resin
... relative permittivity greater than the epoxy resin without filler (EPFA0) of ...relative permittivity values for epoxy resin can be seen the relationship between the value of permittivity relative to ...
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Heavily loaded ferrite polymer composites to produce high refractive index materials at centimetre wavelengths
... A cold-pressing technique has been developed for fabricating composites composed of a polytetrafluoroethylene-polymer matrix and a wide range of volume-fractions of MnZn-ferrite filler (0%–80%). The electromagnetic ...
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Analysis and Design of an UHF RFID Metal Tag Using Magnetic Composite Material as Substrate
... The material constants are measured by a set of coaxial probes and calibration kits as seen in Fig. 3. Material parameters are calculated by processing the scattering parameters S 11 and S 12 using the Nicholson- ...
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Material-Loaded High Q-Factor Slot Resonator and Measurement of Relative Permittivity
... and high permittivity material inside the parallel plate ...The high Q resonator has been further used as a sensor to measure the dielectric constant of a sheet ...
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Circularly Polarized Slit Loaded Broadband Coplanar Capacitive Coupled Probe Fed Microstrip Antenna for Wireless Communication System
... receiver orientation [15] than for linearly polarized antennas. Although Microstrip antennas in their basic form normally provide linear polarization, circular polarization can be obtained by certain modification to the ...
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Circularly Polarized Cross-Slot-Coupled Stacked Dielectric Resonator Antenna for Wireless Applications
... low permittivity dielectric (9.2) resonator on high permittivity dielectric ...very high impedance bandwidth (more than 100%) in the frequency range of ...
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Dielectric Slab Mode Antenna for Integrated Millimeter wave Transceiver Front ends
... lower permittivity. Most other integrated antennas perform poor on high permittivity substrates due to field trapping effects, so that the slab mode antenna provides an ...
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Capacitive Sensor Arrangement to Detect External Load on a Mobile Terminal Antenna
... The results of this work show that a capacitive sensor is a very effective way to detect external objects with conductivity or high permittivity properties if an antenna is used as one of the sensor’s ...
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Design, Simulation, Fabrication, and Measurement of Antenna Array with Low Mutual Coupling for ISM Band Wireless Applications
... Fig.10 shows the surface current distribution of the antennaarray in the presence and absence of DGS cells. Clearly, bothof the patches are well coupled at the resonant frequency whichbecomes restricted as the DGS cells ...
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The Permittivity for Anisotropic Dielectrics with Permanent Polarization
... relative permittivity for dielectrics with permanent polarization (as described in Section 2 of this paper) is a useful operation, because the solution of field problem for nonlinear systems with permanent ...
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Microwave Tunable Metasurfaces Implemented with Ferroelectric Materials and Periodical Copper Wires
... In this work, we propose an idea to implement a tunable metasurface for beam steering and focusing, using ferroelectric materials with tunable permittivity by voltage. This work is organized as follows: Theories ...
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Precision Permittivity Measurement for Low-Loss
... Keywords: large coaxial probe, thin planar materials, low-loss materials, relative permittivity, reflection 20.. coefficient, calibration.[r] ...
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High-k Gate Dielectric Selection for Germanium-based CMOS Devices
... as high leakage current and low drain ...in high‐mobility substrates such as Ge, III‐V compound semiconductors, and co‐integrated GeSi and III‐V structures on large‐scale Si‐wafers that use wafer bonding ...
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