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1)  tridipole antenna
三偶极子天线
2)  dipole antenna
偶极子天线
1.
Influence of ground screen on vertical dipole antenna;
地网对垂直偶极子天线辐射特性的影响
2.
The Study for the Dipole Antenna in Tag;
偶极子天线在电子标签中的应用研究
3)  dipole antennas
偶极子天线
1.
A novel planar four unit cells dipole antennas based on composite right/left handed transmission line and loaded periodically with shunt inductors and series capacitors was constructed in this study,which features reduced wavelength with decreasing frequency of antenna.
利用周期加载串联电容和并联电感的左右手传输线结构设计了四元小型平面偶极子天线,它具有随着频率降低波长也会减小的独特性质,对天线进行了仿真和测试,短偶极子天线工作于n=-1(484MH z),S11<-10dB相对带宽是2%,在自由空间的长度是0。
2.
Since the demand for flexible RFID(radio frequency identification) antennas with higher efficiency has increased in the recent years,an overview of λ/2 dipole antennas design for passive RFID tags was presented.
针对灵活高效的射频识别(radio frequency identification,RFID)天线的需求逐年递增的现状,给出了无源RFID标签半波偶极子天线总体的设计方法。
4)  tripole antenna
三极子天线
1.
rank-1 ambiguity) problem associated with the polarization-angular coherence structure (PACS) of a tripole antenna by defining a new coordinate system where the two signals of concern both lie in the same coorainate plane, along with a theoretical demonstration indicating that the involved coordinate rotation has no effect on the study of the problem under consideration.
研究简化三极子天线导向矢量平凡(秩-1)模糊问题的分析。
5)  short dipole antenna
短偶极子天线
1.
In this paper firstly the corona pulse current is theoretically researched; then the electromagnetic radiation field caused by corona pulse current is calculated by use of short dipole antenna model; finally the influence of different voltage class on electromagnetic radiation field and electr.
首先对电晕脉冲电流进行了理论研究;然后采用短偶极子天线模型计算该脉冲电流所产生的电磁辐射场;最后仿真研究了不同电压等级对辐射场的影响、不同观测点的电磁环境。
6)  spherical dipole antenna
球形偶极子天线
1.
Because of having broad bandwidth and no electrical wires leading outside of the embedded signal source,the spherical dipole antennas have wide applicability in EMC test.
球形偶极子天线就是一种新型的小型宽频带天线,信号源内置使其无需外部引线独立工作,具有很大的工程应用价值。
补充资料:“质子-电子偶极-偶极”质子弛豫增强


“质子-电子偶极-偶极”质子弛豫增强


  物理学术语。原子核外层中不成对的电子质量小,但磁动性很强,可使局部磁场波动增强,促使氢质子弛豫加快,从而使T1和T2缩短,这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子,所以其离子往往具有PEDDPRE,可用来作顺磁性对比剂,如钆(Gd)。Gd在外层有7个不成对电子,具有很强的顺磁性。
  
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