新黄金城667733 - 新黄金城集团

 
-微波实验参数图解及模拟程序代码-
  您的位置:首页 > 微波资源 >行业技术资料
 
 
 
 
   

Antenna Directivity(天线的方向性)


    Radiation profile (angular dependence of the Poynting flux = directivity) can be varied by a suitable choice of the number of antennas in an array and the phase angle between neighbouring radiation fields. The direction of radiation beam can be rotated electronically without physically rotating the array. The first animation shows radiation profile of 4-antenna array with equal spacing of half wavelength. Rotation of the radiation pattern is controlled by the phase angle phi.

N = 4, d = lambda/2

As the number of antennas increases, the radiation profile becomes sharper. Animation below shows the case of 20- antenna array with neighbouring separation of half wavelength.

N = 20, d = lambda/2

--------------------------------------------------------------------------------

 
主目录   上一节   下一节
新黄金城集团 版权所有
Emai: hdnet@hdmicrowave.com  电话:(029)85224787
地址:西安市长安南路欧风园4号楼2302室   邮编:710061