Tapering the illumination pattern lowers sidelobes- reduces the nominal interferer for an unknown angle of arrival

5

10

15

0

0.2

0.4

0.6

0.8

1

element

|weight|

taylor weights, nbar=4, SL=30 dB

-1

-0.5

0

0.5

1

-30

-20

-10

0

10

20

sin Theta

gain (dB)

-1

-0.5

0

0.5

1

-1

-0.5

0

0.5

1

Real part

Imaginary part

array pattern of w

pole-zero plot of w

magnitude of w

Note 2. Electrical size

of antenna controls

how many zeros you

have to work with

Note 1. Lower sidelobes

come at cost of 0.6 dB in

peak gain (11.4 dB vs. 12.0)

and increase of 27% in

3 dB beamwidth

(8.0 deg vs. 6.3 deg)

Previous slide

Next slide

Back to first slide

View graphic version