Table 5: Element phasing, beam direction, and interelement phasing for the Butler matrix shown in Figure 4 (manufactured).

E1  ( )E2  ( )E3  ( )E4  ( )Beam
direction
Interelement phasing
(average)

Port 1
( )
138°−130°
Port 2
( )
105°−42°
Port 3
( )
76°50°
Port 4
( )
42°138°