Rigol VB1080 User Manual

User's Guide

Product Overview

VB1080 is used in combination with the RIGOL DSA series spectrum analyzer to measure
S11-related parameters (such as return loss, reflection coefficient and VSWR). VB1080
provides three N (Female) connectors as shown in the figure below.
IN: Signal input terminal. Here the signal generator or the output terminal of the
—
tracking generator of the spectrum
analyzer is connected.
OUT: Signal output terminal. Here the
—
power meter or the RF input terminal of the
spectrum analyzer is connected.
DUT: Here the device under test is
—
connected.
Measurement Connection
Connect VB1080 to the spectrum analyzer
as shown in the figure on the right.
Connect the spectrum analyzer
—
Use 2 Dual N (Male) adaptors to
connect the output terminal of the
tracking generator and the RF input
terminal of the spectrum analyzer to
the IN terminal and OUT terminal of
the VSWR bridge respectively.
Connect the device under test
—
Do not use cables or adaptors as far as possible to avoid additional reflection.

Typical Applications

Measurement of the S11-related parameters of the filter, amplifier, mixer, etc.
—
Resonant frequency and VSWR tests of the antenna.
—
VB1080 VSWR Bridge
Connect the device under test
RIGOL
Spectrum Analyzer
Adapter
VSWR Bridge
Jun. 2014