New functionality on VNAs enables efficient four one-port simultaneous measurements

Anritsu is launching a new Simultaneous Sweep capability for its ShockLine MS46131A VNA – the world’s first one-port VNA supporting frequencies up to 43.5GHz. This advanced capability allows simultaneous one-port S-parameter measurements across up to four of the units. Each unit can be independently configured with custom test settings, such as start and stop frequencies, IF bandwidth, and the number of points, while all units perform sweeps in parallel. The result is greatly reduced test time and improved flexibility for a wide range of measurement scenarios.

The Simultaneous Sweep feature permits coordinated sweep triggering through an external signal, synchronising the start of sweeps across multiple VNAs. Excellent for multi-band, multi-configuration test environments, it allows synchronised multi-band antenna characterisation and parallel path performance evaluation. Remote operation is supported via SCPI commands over uniquely assigned TCP port numbers for each VNA, allowing for full automation and seamless integration into distributed test systems.

This new functionality is particularly suited for applications such as:

• Multi-band antenna testing for LTE and Wi-Fi 7 (which operates up to 7GHz)
• Sub-6 GHz and mmWave 5G evaluations (including FR2, ranging from 24.25 to 52.6GHz, and FR3, from 7.125 to 24.25GHzis
• Phased array validation, where simultaneous measurements across multiple elements improve speed and design insight
• Remote or distributed test setups, including use in anechoic chambers

A centralised PC interface manages all connected instruments, streamlining test setup and data handling.

The new Simultaneous Sweep functionality is offered as part of the software version 2025.4.1 update and is supported on the MS46131A ShockLine VNAs. Users benefit from a compact, low-cost alternative to traditional multi-port benchtop VNAs, with performance optimised for modern modular test environments.