Agilent Technologies ENA Series User Manual page 106

Calibration
Calibration Types and Characteristics
Table 4-1 Calibration Types and Characteristics
Calibration Method Standard(s)
Used
Simplified full 3-port •Open
•Short
*5*1
calibration
•Load
•Thru
Full 4-Port ECal module
*8*1
Calibration (2-port
4-port)
•OPEN
•SHORT
•LOAD
•THRU
Simplified full 4-port •Open
*8*1 •Short
calibration
•Load
•Thru
2-Port TRL •Reflection
Calibration (OPEN or
SHORT)
•THRU
•LINE
•MATCH
3-Port TRL •Reflection
(OPEN or
*5
Calibration
SHORT)
•THRU
•LINE
•MATCH
100
Corrected Error Factor
Same as full 3-port calibration
Following 48 error terms:
•Directivity (Ed1,Ed2,Ed3,Ed4)
*6
/
•Isolation
(Ex21,Ex31,Ex41,Ex12,Ex32,Ex4
2,Ex13,Ex23,Ex43,Ex14,Ex24,Ex
*3
34)
•Source Match (Es1,Es2,Es3,Es4)
•Load Match (El1,El2,El3,El4)
•Transmission Tracking
(Et21,Et31,Et41,Et12,Et32,Et42,E
t13,Et23,Et43,Et14,Et24,Et34)
•Reflection Tracking
(Er1,Er2,Er3,Er4)
Same as full 4-port calibration
Following 12 error terms:
•Directivity (Ed1,Ed2)
•Source Match (Es1,Es2)
•Load Match (El1,El2)
•Transmission Tracking
(Et21,Et12)
•Reflection Tracking (Er1,Er2)
Following 27 error terms:
•Directivity (Ed1,Ed2,Ed3)
•Source Match (Es1,Es2,Es3)
•Load Match
(El21,El31,El12,El32,El13,El23)
•Transmission Tracking
(Et21,Et31,Et12,Et32,Et13,Et23)
•Reflection Tracking (Er1,Er2,Er3)
Measurement Characteristics
Parameters
S11, S21, S31, •High-accuracy 3-port
S12, S22,
*7*4
measurement
[S32], S13,
•Simpler procedure by skipping thru
[S23], S33
measurement
(Part of thru
measurement
can be
skipped)
S11,S21,S31,S •Highly accurate 4-port
41,S12,S22,S3
*4
measurement
2,S42,S13,S23
•Quick calibration with low
,S33,S43,S14,
chance of operator error
S24,S34,S44
(All
•Highly accurate 4-port
S-parameters
*4
measurement
at 4 ports)
S11, S21, S31, •High-accuracy 4-port
[S41], S12, *7*4
measurement
S22, [S32],
•Simpler procedure by skipping thru
[S42], S13,
measurement
[S23], S33,
S43, [S14],
[S24], S34,
S44
(Part of thru
measurement
can be
skipped)
S11,S21,S12,S •Highly accurate 2-port
22 measurement
(All • Effective for non-coaxial device
S-parameters measurement
at 2 ports)
S11,S21,S31,S •Highly accurate 3-port
12,S22,S32,S1 measurement
3,S23,S33 •Effective for non-coaxial device
(All measurement
S-parameters
at 3 ports)
Chapter 4