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- The radiation patterns and directivities of a dipole antenna and antenna arrays excited by sinusoidal and walsh waves are compared. 对偶极子天线和天线阵列用正弦波和沃尔什波辐射时的方向图和方向性系数进行了比较。
- a dipole antenna 偶极天线
- The influence of ground screen on vertical dipole antenna was studied. 研究地网对垂直偶极子天线辐射特性的影响。
- The folded dipole antenna is probably only ever seen as a TV antenna. 被折叠的偶极天线被折叠的偶极天线大概曾经只被看见作为电视天线。
- In this thesis, we describe the design of the printed planar log periodic dipole antenna. 本论文就对数周期偶极天线平面化的设计架构加以论述。
- It is what is called a dipole field with a north and South Pole. 它就是所谓的偶极
- Numerical results show that the double-feed dipole antenna has the advantage of smaller returning-loss, wider band, and dual-frequency, etc. 计算结果表明,双馈偶极子具有较小的回波损耗、宽频带以及双频工作等优点。
- A method,covering the antenna with an antenna radome,is proposed in the paper to realize the broadband impedance matching of the half-wave dipole antenna. 该文提出了一种加天线罩来实现半波振子天线宽频带阻抗匹配的方法。
- This BALUN can effectively compensate the series reactances by introducing a shunt resonant circuit and thus achieve the maximum bandwidth of microstrip dipole antenna. 该BALUN引入一个并联谐振电路,可以有效补偿半波振子的串联电抗而实现微带半波振子带宽的最大化。
- Abstract: A method of radar cross section(RCS) reduction of microstrip printed dipole antenna with a uniplanar compact-EBG(UC-EBG) ground plane is proposed. 摘要: 提出了一种使用电磁带隙结构来减小微带印刷对称阵子天线雷达散射截面的方法。
- In this paper, resonant characteristics of the meander-line dipole antenna depended on times of meanders, the height of meanders and the angle of meanders are analyzed. 摘要本文研究了由矩形弯折线构成的偶极子天线的谐振特性,分析了弯折线偶极子天线的弯折次数、矩形弯折的高度以及弯折角度等参数对天线谐振特性的影响。
- An explanation of the magnitude of such a dipole moment must seal explicity with two contributing factors. 对这和偶极矩大小的解释必须明确研究两个有关的因素。
- Any heteronuclear diatomic molecule must have a dipole moment since its two ends are different. 任何异核双原子分子必然具有偶极矩,因为它的两端是不同的。
- The conformational change of kinesin is described by the rotation of a dipole which interacts with the microtubule. 用电偶极子的转动来描述驱动蛋白的构象变化。
- For a UWB communication system, by using differential characteristic of Herz magnetic dipole antenna, the narrow pulse can be produced from the rise edge of input square-wave signal. 在UWB通信中,利用赫兹磁偶极子天线的微分特性,由输入方波的上升沿产生窄脉冲。
- In this paper, symmetric dipole antenna design concern parameters: symmetric oscillator radiation field, radiation power, radiation resistance, as well as parameters such as direction of Fig. 本文介绍了对称振子天线设计中人们所关心的参量:对称振子的辐射场、辐射功率、辐射电阻以及方向图等参量。
- The atmospheric flow is divided into barotropic and baroclinic flow field s in a dipole blocking case over the Ural mountains. 将阻塞过程中的大气运动流场分解为正、斜压流场,研究了它们在乌拉尔山偶极型阻塞个例中的演变特征。
- Each water molecule in that chain has a dipole moment and is polar, as the oxygen atom is more electronegative than the hydrogen atoms. 而赵亚溥课题组的模拟发现,正是该相互作用使得水偶极链很少发生翻转, 成为纳米水力发电的关键。
- For both wind regimes, the composites of observed and simulated anomalous precipitation show a dipole pattern with poles in northwestern and central-southeastern Brazil. 观测与模拟的降雨异常合成图在巴西西北部和中部与东南部都呈现一个双极类型。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。