نتایج جستجو برای: electromagnetic parameters
تعداد نتایج: 647380 فیلتر نتایج به سال:
Components manipulation and structure engineering have shown powerful approaches for tailoring electromagnetic (EM) parameters. However, the integration of controllable architectural compositional complexity into one multiple-layer heterostructure seems significantly effective but remains a considerable challenge, correlative quantized modulation EM parameters is scarce. Herein, three types met...
The EMI filters are usually used for suppression of electromagnetic conducted interference of range 9 kHz-30 MHz. The efficiency of electromagnetic interference filter is described by attenuation characteristics. The value of attenuation of EMI filter depends on main parameters of filter’s elements and its parasitic parameters. Therefore the high frequency model of electromagnetic interference ...
This work presents a simple model of via-hole using electromagnetic field solver. Equivalent model parameters on Si are found out at Ka-band. Proposed single via-hole model has been compared with theoretical published data. The effect of viahole radius and substrate height at Ka-band frequencies has been studied. Further, S-parameter analysis and comparison for multiple vias at two different fr...
Although full wave electromagnetic systems are large and cumbersome to solve, typically only a few parameters, such as inpul impedance, S parameters, and far field pattern, are needed by' the designer or analyst. A reduced order modeling of these parameters is therefore an imt)ortant consideration in minimizing the CPU requirements. The Asymptotic Waveform Evaluation(AWE) method is one approach...
isolated carbon nanotubes (cnts), cnt films and cnt-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. the main objective of this article is to provide a comprehensive review on the investigations performed in the field of characterizing electrical and electromagnetic properties of isolated cnts and cnt-reinf...
The mutual coupling in a uniform linear array (ULA) of dipoles is calculated using basic electromagnetic concepts. Since the coupling often is unknown and needs to be estimated, a simpler model is proposed based on the electromagnetic analysis. The parameterization of this model is shown to be locally unambiguous. A necessary condition for the joint solution of directions and coupling parameter...
to investigate the electromagnetic interaction of molecules inside the nanotubes, first, the structure of nanotubes b16n16 was optimized with hybrid density functional theory (b3lyp) using the epr-ii basis set, then cu, cu+, cu++ were located in nanotube and we studied the total energy, band gap energy, electrical potential, changes of band gap energy in terms of total energy and dipole moment ...
background : now a days researchers have shown grean interest in electromagnetic waves which spread from devices such az microwaves,satellites,tv,cell phones etc,due to various reports of their devasting effects on animal growth and health.in this study the effects of these radiations on blood cells is investigated . methods : in the present study the effect of radiation on blood parameters in ...
Isolated carbon nanotubes (CNTs), CNT films and CNT-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. The main objective of this article is to provide a comprehensive review on the investigations performed in the field of characterizing electrical and electromagnetic properties of isolated CNTs and CNT-reinf...
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