7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 1/10

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 2/10

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 3/10

!

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 4/10

"

# Σ $i %

Free space

Guided

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 5/10

&

#Σ $i %

Free space

Guided

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 6/10

'#Σ $i %

(hased array

Free space

Guided

De)ay

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 7/10

*#Σ $i %

Free space

Guided

(hased array

De)ay

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 8/10

+

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 9/10

I

Phased

Array

x2 x2 x2 x2 x2 x2

Sp)it signa)

no S-N )oss

  t

(hased array   #Σ $i %

I(θ

)

#Σ $i %

θ

7/17/2019 Phased Array

http://slidepdf.com/reader/full/phased-array-56904c71c3401 10/10

11

$i × $/0

∆t

∆ϕ ∆ t-λ

2orre)ator 

Fo3rier Trans4orm

I#r%

van Cittert-Zernike

 theorem

Synthesis

Imain