平面极化

近年来，通过对神经管畸形小鼠的研究表明，平面细胞极化信号通路（Planarcellpolarity，PCP）中的基因的敲除对神经管的闭合起到重要作用。

Recently , more and more research in mouse models of neural-tube defects indicated that nearly all of the genes involved in planar cell polarity ( PCP ) pathway play an important role in neural tube closure .

本文进一步在平面双极化天线的基础上，提出了一种全平面化的四单元多天线结构，通过选择其不同的单元组合，可以实现不同分集方式的切换。

Further , based on the planar dual-polarized antenna , a compact planar four-element antenna configuration has been presented , of which different elements can be combined to provide different diversity .

给出一种适用于移动台的平面型紧凑极化分集天线。

This paper presents a compact planar polarization diversity antenna for mobile terminal .

移动台适用的平面型紧凑极化分集天线

Compact planar polarization diversity antenna for mobile terminal

分析指出，由于金属电极镀在极化光纤的侧面抛磨平面上，极化光纤中传播的光具有偏振消光特性。

The analysis indicated that the lightwave propagating in the poled fiber has characteristics of polarization extinction due to the existence of metal electrodes deposited on the flat of the optical fiber .

切应变会增加平面内的自发极化但是降低了平面外自发极化。

In-plane shear strain increases the in-plane spontaneous polarization but reduces the out-of-plane spontaneous polarization .

并且2个极化端口在其对应主平面方向的交叉极化电平均低于-38dB。

The cross-polarization suppression is lower than - 38 dB in both horizontal and vertical ports .

本文通过对这两种平面天线单元圆极化特性的讨论以及参数优化，对比仿真结果之后选择直边槽平面天线加工和测试。

Based on discussion and parameter optimization of these two kinds of realization of planar antenna unit circular polarization , and the comparison between the simulation results , the straight groove planar antenna is chosen for processing and testing .