R&S ZVA Series, Начало работы

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System Overview
R&S
®
ZVA
90 Getting Started 1145.1090.62 ─ 13
Calibration Type Standards Parameters Error Terms General Accuracy Application
TRM (2 or more
ports) Reflect (equal at all
ports) and Match at
all ports,
Through between
all directed port
pairs
All Reflection tracking,
Source match,
Directivity,
Load match,
Transmission track-
ing
High Reflection and
transmission mea-
surements on DUTs
with 2 or ports,
especially in test fix-
tures.
TRL (2 or more
ports) Reflect at all ports,
Through and Line 1
[+ Line 2, Line 3
(optional)] between
all directed port
pairs, in combina-
tion with TRM
(optional)
All Reflection tracking,
Source match,
Directivity,
Load match,
Transmission track-
ing
High, high directiv-
ity Reflection and
transmission mea-
surements on DUTs
with 2 or more
ports, especially for
planar circuits. Limi-
ted bandwidth.
NIST Multiline TRL
(2 or more ports) Reflect at all ports,
Through and one or
more Line stand-
ards (number not
limited) between all
directed port pairs All Reflection tracking,
Source match,
Directivity, Load
match, Transmis-
sion tracking High, high directiv-
ity In general higher
accuracy than TRL Reflection and
transmission mea-
surements on DUTs
with 2 or more
ports, especially for
planar circuits.
Bandwidth limited at
low frequencies.
TNA (2 or more
ports) Through, Attenua-
tion, Symmetric
network All Reflection tracking,
Source match,
Directivity,
Load match,
Transmission track-
ing
High, lowest
requirements on
standards Reflection and
transmission mea-
surements on DUTs
with 2 or more
ports, especially for
planar circuits.
1) Or any other 3 known one-port standards. To be used in a guided calibration, the
known standards must be declared to be open, short, and match irrespective of their
properties.
2) Or any other known two-port standard. See remark above.
The calibration type must be selected in accordance with the test setup. Select the cali-
bration type for which you can obtain or design the most accurate standards and for
which you can measure the required parameters with best accuracy.
3.4.3 Automatic Calibration
A Calibration Unit is an integrated solution for automatic system error correction of vec-
tor network analyzers. For analyzers of the R&S ZVAB family, Rohde & Schwarz pro-
vides different types of calibration units:
●
The 2- and 4-port calibration units R&S ZV-Z51, R&S ZV-Z52, R&S ZV-Z53, R&S
ZV-Z54, and R&S ZV-Z55 are especially suited for R&S ZVA and R&S ZVB vector
network analyzers.
Calibration