R&S®FS-Z10 Coherence Unit

For phase coherent measurements

  • Overview

Key Facts

  • Frequency range 100 MHz to 6 GHz
  • Phase coherent two RF channel operation
  • Design, test and calibration of multi antenna systems

Brief Description

The R&S®FS-Z10 coherence unit in combination with two Rohde & Schwarz R&S®FSQ or R&S®FSG signal and spectrum analyzers enables phase-coherent RF measurements such as measuring phase, timing and gain differences of two RF signals.

Features

The R&S®FS-Z10 coherence unit comes with a control software running on a PC. It controls the complete test setup, and calculates and displays the test results.It captures the I/Q data of the sampled RF signals from the analyzers and calculates the signal differences based on the I/Q data.

Specifications

General data of the R&S®FS-Z10 coherence unit
Supported signal and spectrum analyzers R&S®FSQ, R&S®FSG
Frequency range 100 MHz to 6 GHz

Key Facts

  • Frequency range 100 MHz to 6 GHz
  • Phase coherent two RF channel operation
  • Design, test and calibration of multi antenna systems
  • Measurement of phase, timing and amplitude difference of RF signals
  • Compensation of phase, timing and amplitude differences based on the I/Q data for further analysis

Brief Description

The R&S®FS-Z10 coherence unit in combination with two Rohde & Schwarz R&S®FSQ or R&S®FSG signal and spectrum analyzers enables phase-coherent RF measurements such as measuring phase, timing and gain differences of two RF signals. Moreover, it can compensate the phase, timing and gain difference of the digitized RF signal for further calculations. The R&S®FS-Z10 focusses on measurements on multi-antenna systems in aerospace and defense as well as in mobile communications, for instance MIMO beamforming.

Features & Benefits

The R&S®FS-Z10 coherence unit comes with a control software running on a PC. It controls the complete test setup, and calculates and displays the test results.It captures the I/Q data of the sampled RF signals from the analyzers and calculates the signal differences based on the I/Q data. This enables the compensation of the signal differences and saves the compensated or non-compensatedI/Q data for further analysis.

The settings specified in the graphical user interface of the control software are used to configure the analyzers automatically. There are three different modes of operation:

  • Calibration mode: Automatic compensation of signal differences (phase, timing and/or amplitude) in the test setup including cables for connecting the device under test
  • Measurement mode: Measurement of signal differences (phase, timing and/or amplitude) between the signals of device under test
  • Compensation mode: Compensation of signal differences (phase, timing and/or amplitude) of the device under test

The R&S®FS-Z10 coherence unit supports the R&S®FSQ or R&S®FSG signal analyzers from Rohde & Schwarz. This concept reduces investment costs because it allows existing equipment to be reused without modification and provides accurate measurement results:

  • High performance signal analyzers with excellent RF performance
  • Signal analysis bandwidth up to 120 MHz with low EVM

Specifications

General data of the R&S®FS-Z10 coherence unit
Supported signal and spectrum analyzers R&S®FSQ, R&S®FSG
Frequency range 100 MHz to 6 GHz
Signal analysis bandwidth (depending on base instrument) R&S®FSQ: 28 MHz (optional 120 MHz)
R&S®FSG: 28 MHz
Inputs RF in1, RF in2, Cal in, Trig in
Outputs RF out1, RF out2, Cal out1, Cal out2,
Trig out1, Trig out2, Trig out3
Accuracy phase: < 3°, nominal
timing: <8.33 ps, nominal (at 1 GHz)
gain: < 0.3 dB, nominal
R&S®FS-Z10 control software
Numerical results phase, timing and gain difference of measurement and calibration
Graphical results capture buffer display
Compensation phase, timing and gain (optional)
Modes of operation calibration mode, compensation mode, measurement mode
High accuracy mode A specific high-accuracy data file comes with each R&S®FS-Z10. This file contains information about the gain and phase differences of the R&S®FS-Z10 paths over frequency and thus further improves the measurement accuracy of the overall test setup.
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