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- It exhibits an impedance of 300 ohms whereas a half wave dipole is 75 ohms and I'm certain someone will be alert enough to ask "why 75 ohms, if figure 3 above is 50 ohms? 它陈列300欧姆阻抗但是一个半波偶极是75欧姆并且我肯定某人将是足够机敏的要求"为什么75欧姆,如果图3上述是50欧姆?
- half wave dipole 半波偶极子
- 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。
- RF, half wave positive or negative, and full wave. 射频波、正半波、负半波,以及全波整流。
- 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。
- Each band represents a deviation of one half wave length of the applied light. 每条光带表示所用光的一个半波的波长的偏差。
- 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。
- 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。
- Converts the negative half wave of an alternating current into a positive half wave. 把负极半波交流电转变成正极半波交流电。
- The function of supersensitization was explained by measurement of ESR signal and polargraphic half wave potential. 通过ESR信号及极谱半波电位的测试，对超增感机理进行了解释。
- 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 following conclusions has been made:1)The electrode width can be optimized to get the lowest half wave voltage of BOA type optical switches. 结果表明 :通过优化设计电极的宽度可以获得 BOA型光开关最小的半波电压 ;
- The next step is to obtain the negative parts of the signal via the reverse process of the HWR (Half Wave Rectification) stage.Finally the func... ‘一“],并表现出较好的性能,目前这方面的 研究正进一步深入之中。
- Usiflg the atom-atom polarizability as the index, which may be obtained a linear relationship with the half wave potential values. 为极谱分析中选用有机试剂提供了有用的信息。
