R&S ZNC3, Руководство пользователя

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Concepts and Features
R&S
®
ZNC
57 User Manual 1173.9557.02 ─ 13













 
 
 






i
i
i i i i
i i i i
i
i
i
i
i
i
i
b
a
Z Z Z Z
Z Z Z Z
Z
Z
Z
Z
Z
b
a
0
0
1 0 1 0
1 0 1 0
0
1
1
0
0
1
1
) Re(
) Re(
2
1
The renormalized S-matrix S1 is calculated as
  
P S E S P S
1
0 0
1
1

   
 
with the unit matrix E and two additional matrices with the elements
i i
i i
ii
Z Z
Z Z
0 1
0 1




) Re(
) Re( 2
1
0
0
1
1 0
0
i
i
i
i
i i
i
ii
Z
Z
Z
Z
Z Z
Z
P


2. Power waves
In the model of Kurokawa ("Power Waves and the Scattering Matrix"), the wave
quantities a and b are transformed as follows:













 
 
 






i
i
i i i i
i i i i
i i
i
i
b
a
Z Z Z Z
Z Z Z Z
Z Z
b
a
0
0
1 0 1 0
1 0 1 0
1 0
1
1
) Re( ) Re( 2
1
The renormalized S-matrix S1 is calculated as
 
 
A S E S A S
1
0 0
1
1


    
with the unit matrix E and two additional matrices with the elements
i i
i i
ii
Z Z
Z Z
0 1
0 1


 
ii ii
ii
ii
ii
A
  
 
 

1
1
1
3.3.6 Stability Factors
The stability factors K, μ1 and μ2 are real functions of the (complex) S-parameters,
defined as follows:
| | 2
| | | | | | 1
:
21 12
2
21 12 22 11
2
22
2
11
S S
S S S S S S
K
 
     

Measurement Results