These two constraints form the effective noise figure measurement range and can limit the flexibility a user has in choosing pre-amps and filters. If too much power or amplification is applied, compression can impact the measurements. If too little amplification is used, there may be excessive jitter from the instrument A/D converter. It is often necessary to add pre-amplification and filtering in front of the measurement receiver to ensure sufficient sensitivity to make a quality measurement. The result is a robust capability to make high-quality microwave and mm-wave noise figure measurements on a wide variety of active devices.įor less experienced test engineers, configuring a noise figure test setup can be particularly challenging.

The receiver used to perform the industry-first VNA-based noise figure measurements at 125 GHz incorporates a unique design focusing on improved noise performance and reduced sensitivity-to-source impedance. Vector Star offers the unique blend of technical leadership, high performance, ease of use and flexibility. These engineers often have to balance the conflicting demands of designing higher performance requirements with less budget in shorter times. Noise figure measurements enable test engineers to determine potential degradation of signal-to-noise ratio from system components in applications including radar, wireless communications, and digital communications.

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