Patent ID: 11942694
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 22:
23. The method of claim 22 wherein:
a mutual coupling between the Tx antenna element Txi and the Rx antenna element Rxn is approximately the same as a mutual coupling between the Tx antenna element Txk and the Rx antenna element Rxn;
a mutual coupling between the Tx antenna element Txi and the Rx antenna element Rxm is approximately the same as a mutual coupling between the Tx antenna element Txk and the Rx antenna element Rxm; and
the at least one relative gain value and the at least one relative phase value for the Tx antenna element Txi relative to the Tx antenna element Txk comprises a relative gain value defined as:, Δ
        ⁢
        G
      
      
        
          Tx
          i
        
        ⁢
        
          Tx
          k
        
      
    
    ⁡
    
      (
      1
      )
    
  
  =
  
    
      
        (
        
          
            G
            
              
                MTx
                i
              
              ⁢
              
                Rx
                n
              
            
          
          -
          
            G
            
              
                MTx
                k
              
              ⁢
              
                Rx
                n
              
            
          
        
        )
      
      +
      
        (
        
          
            G
            
              
                MTx
                i
              
              ⁢
              
                Rx
                m
              
            
          
          -
          
            G
            
              
                MTx
                k
              
              ⁢
              
                Rx
                m
              
            
          
        
        )
      
    
    2, and a relative phase value defined as:, Δϕ
      
        
          Tx
          i
        
        ⁢
        
          Tx
          k
        
      
    
    ⁡
    
      (
      1
      )
    
  
  =
  
    
      
        
          (
          
            
              ϕ
              
                
                  MTx
                  i
                
                ⁢
                
                  Rx
                  n
                
              
            
            -
            
              ϕ
              
                
                  MTx
                  k
                
                ⁢
                
                  Rx
                  n
                
              
            
          
          )
        
        +
        
          (
          
            
              ϕ
              
                
                  MTx
                  i
                
                ⁢
                
                  Rx
                  m
                
              
            
            -
            
              ϕ
              
                
                  MTx
                  k
                
                ⁢
                
                  Rx
                  m
                
              
            
          
          )
        
      
      2
    
    .