Calibration Types And Characteristics - Agilent Technologies ENA Series User Manual

Calibration Types and Characteristics

Table 4-1 shows the different types of calibrations and the features of each method.
Table 4-1 Calibration Types and Characteristics
Calibration Method Standard(s)
Used
No calibration None
Response •OPEN or
*1 *2
Calibration SHORT
*3
•LOAD
•THRU
*3
•LOAD
1-Port Calibration ECal module
(2-port/4-port)
•OPEN
•SHORT
•LOAD
Full 2-Port ECal module
(2-port/4-port)
*1
Calibration
•OPEN
•SHORT
•LOAD
•THRU
Full 3-Port ECal module
*4*1 *5
Calibration (2-port
4-port)
•OPEN
•SHORT
•LOAD
•THRU
Chapter 4
Corrected Error Factor
None
Following 2 error terms:
•Reflection Tracking (Er)
*3
•Directivity (Ed)
Following 2 error terms:
•Transmission Tracking (Et)
*3
•Isolation (Ex)
Following 3 error terms:
•Directivity (Ed)
•Source Match (Es)
•Reflection Tracking (Er)
Following 12 error terms:
•Directivity (Ed1,Ed2)
*3
•Isolation (Ex21,Ex12)
•Source Match (Es1,Es2)
•Load Match (El1,El2)
•Transmission Tracking
(Et21,Et12)
•Reflection Tracking (Er1,Er2)
Following 2 error terms:
•Directivity (Ed1,Ed2,Ed3)
/
•Isolation
(Ex21,Ex31,Ex12,Ex32,Ex13,Ex2
*3
3)
•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)
Calibration Types and Characteristics
Measurement Characteristics
Parameters
All parameters • Low accuracy
• Calibration not required
S11 •Medium accuracy
(Reflection •Quick calibration
characteristics •An isolation calibration improves
at 1 port) the accuracy in a reflection
measurement of the DUT that has
high return loss
S21 •Medium accuracy
(1 direction •Quick calibration
transmission •An isolation calibration improves
characteristics the accuracy in a transmission
at 2 ports) measurement of a device that has
high insertion loss
S11 •Highly accurate 1-port
(Reflection measurement
characteristics •Quick calibration with low chance
at 1 port) of operator errors
•Highly accurate 1-port
measurement (more accurate than
the ECal)
S11,S21,S12,S •Highly accurate 2-port
22 measurement
(All •Quick calibration with low chance
S-parameters of operator errors
at 2 ports)
•A 2-port measurement with the
highest degree of accuracy
S11,S21,S31,S •Highly accurate 3-port
12,S22,S32,S1 measurement
3,S23,S33 •Quick calibration with low chance
(All of operator errors
S-parameters
•A 3-port measurement with the
at 3 ports)
highest degree of accuracy
Calibration
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