Description: 计算弯曲线天线的输入阻抗,辐射方向图以及增益(可以计算不同的直线长度,弯折次数,弯折高度,弯折角度的弯曲线天线)-Calculation of bending wire antenna input impedance, radiation pattern and gain (the straight line can be calculated in different length, bending frequency, a high degree of bending, bending angle of bending wire antenna) Platform: |
Size: 2048 |
Author:rabbitade |
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Description: 用MOM计算V型天线的电流分布、输入阻抗及辐射方向图。其中L=0.3λ,L/a=2000,激励用δ-gap模型。-calculate the current distribution, input impedance and radiate pattern of V-antenna with MOM. L=0.3λ,L/a=2000, δ-gap source Platform: |
Size: 1024 |
Author:Mavis |
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Description: In this text two 3D corner reflector antenna modifications are described.
The first modification is regarding the input impedance decrease from about 72 ohms of
the original antenna, to about 50 ohms, which made possible supplying with usual coaxial
cables of 50 ohms impedance. This is achieved by adding a passive element to the
existing active element. This decreased impedance while retaining antenna’s gain and its
radiation diagram. Platform: |
Size: 783360 |
Author:jojomoje |
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Description: 阻抗匹配与史密斯(Smith)圆图
在处理RF系统的实际应用问题时,总会遇到一些非常困难的工作,对各部分级联电路的不同阻抗进行匹配就是其中之一。一般情况下,需要进行匹配的电路包括天线与低噪声放大器(LNA)之间的匹配、功率放大器输出(RFOUT)与天线之间的匹配、LNA/VCO输出与混频器输入之间的匹配。匹配的目的是为了保证信号或能量有效地从“信号源”传送到“负载”。-Impedance matching and Smith (Smith) Smith chart in dealing with the practical application of RF system, there would always encounter some very difficult work on the part of the cascade of different impedance matching circuit is one of them. Under normal circumstances, the need for matching circuits, including antennas and low noise amplifier (LNA) matching between the power amplifier output (RFOUT) match between the antenna, LNA/VCO output and mixer input match between. The purpose of matching is to ensure the effective signal or energy from the " source" sent to the " load." Platform: |
Size: 35840 |
Author:dugangqiang |
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Description: 全参数模板提供天线方向系数、半空间方向函数、输入阻抗、驻波比、固定方位角的极化轴比的计算函数。-All parameters of the template provides antenna factor, half-space direction function, input impedance, VSWR, axial ratio fixed azimuth of polarization of the calculation function. Platform: |
Size: 1024 |
Author:mark |
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Description: this matlab code calculate the input impedance and current distribution of microstrip patch antenna with coax excitation in different place. Platform: |
Size: 1024 |
Author:saeid |
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Description: 用matlab求解天线输入阻抗求解,非常准确,基本上没有误差,用的是矩量法-Matlab solve the antenna input impedance by solving, very accurate, with virtually no errors, using a moment method Platform: |
Size: 1024 |
Author:杨 |
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Description: 通过MATLAB来计算偶极子天线的输入阻抗,归一化电流分布,以及远场方向图-By MATLAB to calculate the dipole antenna input impedance, normalized current distribution and far field pattern
Platform: |
Size: 9216 |
Author:xun |
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Description: 天线基本知识及应用。表征天线性能的主要参数有方向图,增益,输入阻抗,驻波比,极化方式等-Basic knowledge and application of the antenna. Performance characterization of the main parameters of the antenna pattern, gain, input impedance, VSWR, polarization, etc.
Platform: |
Size: 370688 |
Author:liyq |
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Description: 从混合位积分方程出发,采用矩量法结合曲线分段的三角基函数和脉冲检
验函数分析了阿基米德平面螺旋天线,给出了输入阻抗,电流分布以及辐射方向图结
果。从曲线形式的海伦积分方程出发结合折线分段的脉冲基函数点匹配法比较结果
与文献[2~4]十分吻合。-In this paper,Archimedean spiral antenna is analyzed using a mixed po—
tential integral equation。and the equation is solved by the moment method incorpo—
rating with curved piecewise triangle sub—domain basis and pulse testing functions.
The numerical results of input impedance,current distributions and radiation pat—
terns of Archimedean spiral antenna are presented and have good agreement with
the published results in[2~4],where piecewise segmentations were adopted. Platform: |
Size: 245760 |
Author:linana |
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Description: Two elements diversity planar antenna for a
multiple-input multiple-output application is proposed. By adopting two Y-shaped radiators, the antenna provides wideband impedance
matching characteristic over the desired frequency band. To reduce the mutual coupling between two radiating elements, three stubs are
inserted in the ground plane. Good impedance matching and improved isolation characteristics are observed. The measured impedance bandwidth of the proposed antenna ranges from 2.27 GHz
to 10.2 GHz for return loss less than 10 dB. Parametric analysis has been conducted to investigate the effect of radiator length and
insertion of stubs on the impedance bandwidth and isolation characteristics. Platform: |
Size: 1225728 |
Author:Mohamed Rias |
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Description: Passive UHF RFID tag consists of a microchip attached to an antenna. Proper impedance
match between the antenna and the chip is crucial in RFID tag design. It directly influences RFID tag
performance characteristics such as the read range. It is known that an RFID microchip is a nonlinear load
whose complex impedance varies with the frequency and the input power Platform: |
Size: 137216 |
Author:taha |
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