Performance Tests
Output Standing Wave Ratio (SWR) Test
2-28
Agilent E4418B/E4419B Service Guide
25.Calculate factor M using equation 2-11 and record the value:
Equation 2-11:
• M ___________
26.Calculate the value of the output voltage reflection coefficient (|
Γ
s
|)
using equation 2-12 and record the value:
Equation 2-12:
One of the roots of this equation will be non-physical while the other
gives a value for |
Γ
s
|.
• |
Γ
s
|___________
27.Calculate the value of the output SWR using Equation 2-13 and record
the value:
Equation 2-13:
• Output SWR ___________
28.Verify that the output SWR is not greater than the maximum value
shown in the following table:
Where:
M
P
1
P
2
------
1
Γ
2
2
–
(
)
1
Γ
1
2
–
(
)
--------------------------
=
Where:
Γ
s
2
Γ
1
M
2
Γ
2
–
(
)
2
Γ
2
2
Γ
1
M
–
(
)
2
4
Γ
1
2
M
Γ
2
2
–
(
)
M
1
–
(
)
–
±
2
Γ
1
2
M
Γ
2
2
–
(
)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------
=
SWR
1
Γ
s
+
(
)
1
Γ
s
–
(
)
-----------------------
=
4402serv.book Page 28 Tuesday, October 14, 2003 3:18 PM
Summary of Contents for E4418B
Page 19: ...1 Specifications 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
Page 37: ...2 Performance Tests 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
Page 69: ...3 Adjustments 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
Page 81: ...4 Theory of Operation 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
Page 95: ...5 Replaceable Parts 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
Page 119: ...6 Troubleshooting 4402serv book Page 1 Tuesday October 14 2003 3 18 PM ...
