Patent ID: 11962395
Assignee: CHINA STARWIN SCIENCE & TECHNOLOGY CO., LTD
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. The whole-airspace satellite search device based on the phased array antenna according to claim 9, wherein in the whole-airspace satellite search method based on the phased array antenna, step S54 further comprises: calculating a width θBw of a scanning angle at different off-axis angles during the whole-airspace scanning:, θ
   
    B
    ⁢
    w
   
  
  =
  
   
    k
    ⁢
    λ
   
   
    
     Nd
     ·
     cos
    
    ⁢
    ψ
   
  
 

wherein k denotes a beam width factor; λ denotes a wavelength; N denotes a number of array elements in the phased array antenna; d denotes a center distance between two array elements; and ψ denotes an off-axis angle of the phased array antenna; and
calculating a width r1 of the scanning angle at different yaw angles:
r1=a·b√{square root over (a2 sin2γ+b2 cos2γ)}y denote lengths of two axes of an ellipse formed by fitting the multiple beam widths; and γ denotes a yaw angle of the phased array antenna.