S/N

a x = a y

ρ x

A F n ( θ ) X

A F n ( θ ) d B

A F n ( θ , ϕ ) x y

D 0 ( dB )

1

0.47λ

2.8813

0.9992

−0.0072

0.9984

36.56

2

0.50λ

2.2214

0.9991

−0.0082

0.9982

36.74

3

0.52λ

2.3102

0.9990

−0.0088

0.9980

36.86

4

0.55λ

2.4436

0.9989

−0.0099

0.9978

37.22

5

0.57λ

2.5324

0.9988

−0.0106

0.9976

37.16

6

0.60λ

2.2666

0.9986

−0.0118

0.9972

37.34

7

0.65λ

2.8878

0.9984

−0.0138

0.9968

37.64

8

0.67λ

2.9767

0.9983

−0.0147

0.9966

37.76

9

0.70λ

3.1100

0.9981

−0.0161

0.9962

37.94

10

0.75λ

3.3321

0.9979

−0.0184

0.9958

38.23

11

0.78λ

3.4654

0.9977

−0.0199

0.9954

38.41

12

0.80λ

3.5548

0.9976

−0.0352

0.9952

38.52

13

0.90λ

3.9986

0.9970

−0.0265

0.9940

39.10

14

0.95λ

4.2207

0.9966

−0.0296

0.9932

39.39

15

1.0λ

4.4424

0.9962

0.0327

0.9924

39.67