查询词典 circular polarization

with the development of satellite navigation communication,antenna is a very important unit,performance of the satellite navigation communication system is affected by it partly.a new type of bifilar helix for satellite navigation communication system is introduced,and the traving-wave bifilar helix is analyzed briefly.meanwhile,the design and the test results are given.the results show that the antenna possesses excellent circular hemispherical beam with wide angle circular polarization and better impedance match,and has a compact structure and high integration.it can be applied in caps systems successful.

小 摘要：随着卫星导航通信技术的迅速发展，天线作为卫星导航通信系统中的重要部分，在一定程度上决定着卫星导航通信系统的性能。介绍一种用于卫星导航通信系统的双臂螺旋天线，讲述爬行波式螺旋天线的设计过程，并给出最终测试结果。结果表明，该天线具有优良的圆对称半球波束，良好的广角圆极化特性和优良的阻抗匹配特性，其结构简单、紧凑，为通信入站回传提供了一种优良的选择。

Simulation results show that the rectangular-grid array on a cone with circular polarization is the optimal configuration of the conformal array in guided weapons under the same parameters.

仿真结果表明，在同等参数配置条件下的圆极化圆锥矩形栅格阵列可以作为制导武器共形天线阵列的最优配置方式。

Simulation results show that the rectangulargrid array on a cone with circular polarization is the optimal configuration of the conformal array in guided weapons under the same parameters.

仿真结果表明，在同等参数配置条件下的圆极化圆锥矩形栅格阵列可以作为制导武器共形天线阵列的最优配置方式。

It contains the design of circular polarization and finds the correlation between antenna gain and different substrate materials.

其中包含了圆形极化天线之设计，并比较各种不同基材材料对天线增益的影响。

According to the theory of antenna and electromagnetic, I simulated the helix antenna which is common antenna on the satellite, and I acquire the preferable result and made different circular polarization helix antenna.

根据天线和电磁场理论，笔者通过仿真星载天线中最常见的螺旋天线，得到较好的效果后，制作不同圆极化方向的螺旋天线。

The experiment results are provided to show that the correspondence quality of the circular polarization helix antennal is good and it meets the design requirements.helix antenna; finite - element method ; radiation pattern; antenna gain

他是2O世纪5O年代首先在连续体力学领域——飞机结构静、动态特性分析中应用的一种收稿日期：2006～12一O7 基金项目：广西自然科学基金(0447090)有效的数值分析方法，随后很快广泛应用于求解热传导、电磁场、流体力学等连续性问题。

The researchers next plan to measure circular polarization in other organisms, and to analyze circular polarized light reflected from Mars.

研究人员的下一步计划是在其它生命体中测量圆偏振，并且分析从火星上反射来的圆偏振光。

Thus a wave of circular polarization propagates with the same wave number regardless of its direction of propagation.

不管传播方向如何，这样的圆极化波传播同等的波数。

This paper presents detecting technology status of circular polarization and evolvement of duallinear polarization, and new application to detecting atmosphere of polarimetric technology, and prospects future meteorological application of polarimetric detecting technology.

介绍了微波圆偏振技术现状和双线偏振测量技术体制的重要进展，以及近年在气象应用中所获得的最新研究结果，展望了偏振探测技术的应用前景。

This paper presents detecting technology status of circular polarization and evolvement of dual-linear polarization, and new application to detecting atmosphere of polarimetric technology, and prospects future meteorological application of polarimetric detecting technology.

介绍了微波圆偏振技术现状和双线偏振测量技术体制的重要进展，以及近年在气象应用中所获得的最新研究结果，展望了偏振探测技术的应用前景。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。