Sunflower Array Antenna with Adjustable Density Taper

Table 1

Mission requirements.

Number of spots	64
Spot diameter	0.65^∘
Inter-spot distance	0.56^∘
Rx band	29.5-30.0GHz
Tx band	19.7-20.2GHz
Frequency reuse	1:4
EOC gain	43.8dBi
SLL in the first ∓4^∘	20dBi
SLL in the first ∓8^∘	25dBi
SLL in the first ∓90^∘	30dBi