欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
推导出空间色散异向介质的色散特性方程,利用该材料其中一个方向的介电常数在某特定频率附近为零的特性来制作高指向性天线.研制了一种交叉金属条结构的异向介质,对放置于这种异向介质中的全向偶极天线进行了仿真,辐射场经过此异向介质与空气的交界面后,在自由空间中集中于异向介质与空气界面的法线方向上、频率为11.5GHz时实现了高指向性,其半功率波束宽度为5°,增益为17.68 dB.仿真结果与实验结果吻合.
英文摘要：
We present an equation of dispersion characteristics for anisotropic metamaterial in this paper. In a particular direction,the dielectric constant of the material is zero at certain frequency.This property is used to produce the high-directional antenna.We develop a new metamaterial with a metallic cross-sectional structure,and simulate the radiated field of an omni-directional dipole antenna placed in the metamaterial. The radiated field is concentrated around the normal to the interface between the metamaterial and the air so that to give highly directional radiation.The gain of the antenna is 17.68 dB at 11.5 GHz,and the half power beam width is 5 degrees.The experimental results are consistent with the simulation.
同期刊论文项目
同项目期刊论文
Scattering and radiation characteristics of step discontinuity in left-handed slab waveguide operati
Scattering and radiation characteristics of step discontinuity in a double-negative (DNG) slab waveg
Leaky characteristics of a new millimeter wave antenna based on groove guide with an asymmetric cond
Investigation on effects of left-handed materials on frequency selective characteristics of dielectr
Experimental verification of zero order bandgap in a layered stack of left-handed and right-handed m
Lateral displacement of a Gaussian beam transmitted through a one-dimensional left-handed meta-mater
Reflection and refraction on the boundary of a left-handed material with a hyperbolic dispersion rel
A new leaky wave antenna based on channel guide filled with left-hand material for millimeter-wave a
Novel Balun and Bandpass Filter Structure Consisting of Composite Right/Left-Handed Transmission Lin
Multimode Network Analysis for Discontinuities in Parallel-plate Waveguides Partially Filled with Mu
Free space measurement of the cross-polarized transmission band of a bianisotropic left-handed metam
Experimental characterization and cell interactions of a two-dimensional isotropic left-handed metam
Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rota
Scattering characteristics of dielectric periodic structure composed of left-handed materials with a
Importance of the singular constitutive parameters of cylindrical cloaks: Illustration on the anticl
Rigorous mode-matching analysis of energy tunneling through an ultranarrow epsilon-near-zero channel
Design of time delay lines with periodic microstrip line and composite right/left-handed transmissio
Low-frequency surface plasmon polaritons propagating along a metal film with periodic cut-through sl
A double-beam radiation leaky wave antenna based on left-handed material slab with metallic strips p
Complete polarization conversion characteristics of dielectric grating composed of left-handed mater
Rainbow and blueshift effect of a dispersive spherical invisibility cloak impinged on by a nonmonoch
Enhancement of evanescent wave in an electrically anisotropic slab with partially negative permittiv
Interaction of an electromagnetic wave with a cone-shaped invisibility cloak and polarization rotato
Perturbation analysis for a new omni-directional antenna consisted of circular rod corrugations glov
Realization of complete polarization conversion using periodic structure composed of left-handed mat
Frequency selective characteristics of a new dielectric periodic structure composed of left-handed m
Experimental validation of negative refraction of metamaterial composed of single side paired S-ring
Negative refraction and cross polarization effects in metamaterial realized with bianisotropic S-rin
Propagation properties of the SPP modes in nanoscale narrow metallic gap, channel, and hole geometri
期刊信息
位置：