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- antenna axial ratio 天线轴比
- An antenna with proposed structure at Ku-band is designed. Measured results show that the proposed antenna can an input impedance bandwidth of 5.4% and axial ratio less than 2.8dB in azimuth plane. 设计并实测了一个工作于Ku波段的天线;实测的阻抗带宽达到5.;4%25;天线在方位面的圆极化轴比均小于2
- Compared with the results before correction,the bandwidth of the axial ratio increases from 16.2% to 22.4%. 与校正前的结果相比;轴比带宽从16.;2%25提高到22
- The experimental results show that the frequency bandwidth is 22.4% for a 3-dB axial ratio criterion and is 33.85% for a VSWR<2 criterion at the central frequency 10 GHz. 获得的实测结果为:中心频率为10GHz;电压驻波比小于2的带宽为33.;85%25;圆极化轴比小于3dB的带宽为22
- Based on the equivalents concept, we present broad axial ratio bandwidth quarter-wave polarizer composed of mutilayered uniaxial anisotropic media and chiral media using genetic algorithm. 同样的，极化转换器在操作频率下，可以将线性极化波转换成完美的圆形极化波且没有反射。
- Keywords ellipsoidal shell;IHBF;strain;dieless forming;axial ratio; 椭球;液压胀形;应变;无模成形;轴比;
- Reception improved because of the new antenna. 接受效果因有新天线而得到改善。
- No antenna, no radio, we're back in the nineteenth century! 没有天线，没有无线电，我们回到十九世纪了。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- You should fix the television antenna before receiving programs. 接收节目前，你应该先装天线。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- The reception is very poor. Let me adjust the antenna. 接收效果太差了。让我来调一下天线。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- Extend the telescopic antenna vertically. 竖直地伸张伸缩式天线。
- He said he would head the antenna with a ball. 他说他还要给天线安个圆头。
- He erected a television antenna on the roof. 他在房顶立了电视天线。
- Angular momentum is an axial vector quantity. 角动量是一种轴矢量。
- They erected a television antenna on the roof. 他们在屋顶上架起了电视天线。
- Keywords cryogenic treatment, high speed steel, friction and wear,,,,, martensite, twin, axial ratio, retained austenite, carbon content, antiwear ability; 深冷处理;高速钢;摩擦磨损;马氏体;孪晶;轴比;残余奥氏体;碳化;物;含碳量;耐磨性;
