Rohde & Schwarz ZVB4
Network Analyzer, 300 kHz - 4 GHz

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Product Overview

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The R&S ZVB4 Vector Network Analyzer covers the frequency range from 300 kHz to 4 GHz. The Rohde & Schwarz ZVB4 has been designed for universal measurements on passive and active components. The analyzer greatly simplifies vector network analysis especially for multiport measurements and measurements on balanced devices. Featuring comprehensive measurement functions, excellent specifications, high measurement and data transfer speeds and remote-control capability, the R&S ZVB4 is an ideal choice for both development and production applications.

• Multiport concept
  • Two or four test ports – for multiport and balanced measurements
  • Two internal sources (on four-port models) – to provide RF and LO signals for mixer measurements by means of a single unit
  • Capability to perform balanced measurements – to characterize balanced DUTs by their mixed mode S-parameters
  • Optional automatic calibration units – to speed up calibration and avoid operator errors
• Outstanding specifications
  • 60001 points per trace
  • Dynamic range better than 123 dB (typ. 130 dB)
  • Power sweep range >50 dB
• High speed
  • Measurement time < 4.5 ms for 201 test points (frequency sweep)
  • Switching time between channels < 1 ms
  • Switching time between instrument setups < 10 ms
  • Data transfer time < 0.7 ms (201 test points via RSIB)
  • Simultaneous measurement of more than one DUT
• Modern user interface
  • Intuitive Windows-based operation via mouse Operation by means of hardkeys and softkeys
  • Large number of channels, traces and setups that can be loaded simultaneously

Other specifications of the R&S ZVB4 Network Analyzer include:

• Number of Ports: 2 or 4 (optional)
• Measurement time per test point at 500 kHz IF bandwidth, CW mode:  
• Measurement time (201 test points):
• Data transfer time (201 test points):
  • Via IEC/IEEE bus:
  • Via VX11 over 100 Mbit/s LAN:
  • Via RSIB over 100 Mbit/s LAN:
• Switching time:
  • Between channels:
  • Between instrument setups:
• Dynamic range at 10 Hz measurement bandwidth (depends on instrument type):
  • Between Test Ports (specified): >123 db
  • Between Test Ports (typical): >133 db
  • Output power at test port: >13 dBm, typ. 15 dBm
  • Power Sweep Range: >50 dB, typ. 60 dB
  • IF Bandwidths: 1 Hz to 500 kHz
  • Number of channels, diagrams, traces: >100 each
  • Number of test points per trace: 1 to 60001
  • Operating System: Windows XP Embedded

Test Set:

The test set is made up of independent reflectometer units, each with a generator path, a measurement receiver, and a reference receiver for each test port. Electronic switches for forward/reverse switchover of measurement paths are not required in the test set. The use of the reflectometer concept allows each test port to carry out measurements like a one-port network analyzer.

This hardware concept allows parallel measurements on different DUTs or different ports of a DUT. Data processing is likewise in parallel up to the display, which considerably reduces measurement time. For example, the reflection parameters (S11 to S44) of four DUTs can be measured in parallel, reducing measurement time by a factor of four. Measurements are performed and data is transferred via IEC/IEEE bus or LAN virtually at the same time.

The ZVB4 frontend receivers are based on a fundamental mixing concept, which was proven successful with the R&S ZVR family. This concept provides a wide dynamic range of typically 130 dB and low trace noise at large measurement bandwidths. The test port output power can be electronically varied by more than 50 dB, allowing nonlinear parameters of active components to be measured quickly and wear-free. When measuring active components, the required DC power is input via the PORT BIAS 1 to 4 BNC rear-panel connectors and supplied to the components via the inner conductors of the analyzer's RF test ports. The R&S ZVB4 also features two rear-panel inputs (1 V DC MEAS and 10 V DC MEAS) for measuring low-frequency AC voltages.

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