天线的方向性的英文

antenna directional characteristic

• 天线:    antenna; aerial; a ...
• 的:    4次方是 The fourth po ...
• 方向性:    directivity; direc ...

例句与用法

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1. Its band structure is analyzed . after the working frequency is selected , the meta - material cover increases the patch antenna ' s directivity by 9 . 14db
   在选定的工作频率，异向介质覆层将贴片天线的方向性系数提高了9 . 14db 。
2. Phased - array radiation lobe is superposed by isometric array element with constant amplitude . using the concept of real and imaginary space , the scanning lobe is researched
   通过“实虚空间”的概念,分析了扫描中的阵列波瓣,总结给出相控阵天线的方向性系数。
3. To broaden the antenna ' s impedance bandwidth and its radiation pattern , a novel printed dipole antenna with reflecting structure of v - shaped ground plane was proposed
   摘要为了扩展天线的阻抗带宽和改善天线的方向性，提出一种采用了地平面反射结构的新型印制偶极子天线。
4. Its size is small ( with an unit length of about 23 . 7 % of the wavelength in the cover medium ) , and its effectiveness is evident ( the patch antenna ' s directivity is increased by 3 . 16db )
   这种结构具有尺寸小(边长仅为介质中波长的23 . 7 ) 、效果明显(将贴片天线的方向性系数提高了3 . 16db )的优点。
5. Combining this pmc structure with the pbg cover maintained above , a new patch antenna with a pmc substrate and a pbg cover has been introduced for the first time . such a structure can increase the directivity more effectively ( the directivity is increased by 7 . 3db ) . 4
   结合这种pmc结构和第2点中提到的pbg覆层，首次设计出了具有pmc基底与pbg覆层的新型贴片天线，对方向性改进效果更加显著(将贴片天线的方向性系数提高了7 . 3db ) 。