Agilent Technologies ENA Series User Manual page 92

Calibration
Calibration Types and Characteristics
Table 4-1 Calibration Types and Characteristics
Calibration Method Standard(s)
Used
Full 4-Port ECal module
*6*1
Calibration (2-port
4-port)
•OPEN
•SHORT
•LOAD
•THRU
*1. The user may select whether or not to carry out an isolation calibration.
*2. A general principle is to use an open standard if the impedance of the device is larger than 50
*3. Only when an isolation calibration is carried out. Isolation calibration is not performed when the 2 port ECal module and ECal
Assistant VBA macro are used.
*4. Only for options 313, 314, 413, and 414.
*5. Used with the EcalAssistant VBA macro pre-installed in the E5070A/E5071A.
*6. Only for options 413 and 414
84
Corrected Error Factor
Following 2 error terms:
•Directivity (Ed1,Ed2,Ed3,Ed4)
*5
/
•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)
Measurement Characteristics
Parameters
S11,S21,S31,S •Highly accurate 4-port
41,S12,S22,S3 measurement
2,S42,S13,S23
•Quick calibration with low chance
,S33,S43,S14, of operator errors compared with the
S24,S34,S44 full 4-port calibration using OPEN,
(All SHORT LOAD, and THRU
S-parameters standards
at 4 ports)
•A 4-port measurement with the
highest degree of accuracy
W
and a short standard if it is less.
Chapter 4