RIGOL VB1080 VSWR Bridge and DSA800-VSWR Software for DSA Series Analyzers, 2 to 8GHz Upgrade

VSWR Bridge

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.