Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 147 / 813

R&S
®
ZVA/ZVB/ZVT Calibration Overview
1145.1084.12 3.37 E-1
The analyzer provides a large number of predefined cal kits but can also import cal kit files and create
new kits:
•
A selection of predefined kits is available for all connector types. The parameters of these kits are
displayed in the Add/Modify Standards dialog, however, it is not possible to change or delete the
kits.
•
Imported and user-defined kits can be changed in the Calibration Kits dialog and its various sub-
dialogs.
Calibration kits and connector types are global resources; the parameters are stored independently and
are available irrespective of the current setup.
Calibration Types
The analyzer provides a wide range of calibration types for one, two or more ports. The calibration
types differ in the number and types of standards used, the error terms, i.e. the type of systematic
errors corrected and the general accuracy. The following table gives an overview.
Calibration
Type Standards Parameter
s
Error Terms General
Accuracy Application
Reflection
Normalization Open or
Short S
11
(or S
22
, ...)
Reflection tracking Low to medium Reflection
measurements on any
port.
Transmission
Normalization Through S
12
, S
21
(or S
13
,...)
Transmission
tracking Medium Transmission
measurements in any
direction and between
any combination of
ports.
Full One-Port Open,
Short,
Match
1)
S
11
(or S
22
, ...)
Reflection tracking,
Source match
Directivity, High Reflection
measurements on any
port.
One-Path Two-
Port Open,
Short,
Match
1)
(at
source
port),
Through
2)
S
11
, S
21
(or S
22
,...)
Reflection tracking,
Source match,
Directivity,
Transmission
tracking Medium to high Unidirectional
transmission
measurements in any
direction and between
any combination of
ports.
TOSM
(2-port, 3-port
or 4-port) Open,
Short,
Match
1)
(at
each port),
Through
2)
(between all
combination
s of 2 ports)
All Reflection tracking,
Source match,
Directivity,
Load match,
Transmission
tracking
High Reflection and
transmission
measurements on DUTs
with 2, 3 or 4 ports;
classical 12-term error
correction model.
TOM (2-port) Open,
Match (at
both ports),
Through All Reflection tracking,
Source match,
Directivity,
Load match,
Transmission
tracking
High, implicit
verification Reflection and
transmission
measurements on DUTs
with 2 ports.
TRM (2-port) Reflect
(equal at
both ports),
Match,
Through All See TOM High Reflection and
transmission
measurements on DUTs
with 2 ports, especially
in test fixtures.