Monday, May 18, 2015

VNA System with industry’s widest frequency coverage!

The VectorStar® ME7838A4 4-port broadband vector network analyser (VNA) system has been introduced by Anritsu.  The new analyser features the world’s widest differential broadband sweep from 70 kHz to 110/125 GHz and utilises the smallest mmWave modules to conduct highly stable and fast measurements when characterising differential devices. The new ME7838A4 provides on-wafer and signal integrity engineers with a new level of performance when conducting differential measurements so they have greater confidence in their next-generation communications system designs.

A key advantage of the VectorStar ME7838A4 4-port broadband system is the integration of the 3743A mmWave modules. Utilising an exclusive Anritsu design that incorporates nonlinear transmission line technology (NLTL), the modules are much more compact than competitive alternatives, for easy mounting on space-limited wafer probe station platens. Additionally, smaller and lighter modules improve overall performance, including superior raw directivity performance that results in superior calibration stability. Modules are available that can extend the VectorStar ME7838A4 to a 4-port 145 GHz system.

The VectorStar ME7838A4 4-port broadband system uses an internal substrate-mounted source for excellent thermal stability, resulting in industry best calibration and measurement stability of 0.1 dB over 24 hours. It also features best-in-class measurement speed of 55 ms for 201 points at 10 kHz IFBW.

Engineers benefit from unparalleled mmWave noise floor sensitivity and the industry’s only available mmWave real-time electronic power leveling that eliminates the need for time-lagging software correction tables. Because internal frequency multiplication begins at 54 GHz in the VectorStar ME7838A4 compared to 67 GHz for other 4-port broadband systems, RF cable losses are reduced for improved dynamic range and phase stability.

Installation and operating costs are reduced with the VectorStar ME7838A4. Probe station positioner costs are lower due to the compact size and lighter weight of the modules. There is also significant savings from the longer interval times between calibrations.

Anritsu’s advanced True Mode Stimulus is available for the VectorStar ME7838A4. With the option, engineers can program two internal signals to deliver a true 180⁰ (or 0⁰ for common mode) differential signal for comprehensive device analysis.

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