The NBS-60 is a cryogenic noise standard for frequencies from 40.0 to 60.0 GHz, operating in WR-19 waveguide. It provides an output noise temperature of 76.10 K with accuracy of +0.29/-0.47 K at 628 mmHg and 293 K. The device uses a precision waveguide horn mounted to a blackbody cavity immersed in a liquid nitrogen bath, eliminating the need for helium purge systems and annual calibrations. Reflection losses are minimized due to room-temperature horn integration, and accuracy is improved by two to three times compared to conventional standards. The system includes a water bath for temperature stability and optional ambient temperature terminations and switches for calibration setups.
The NBS-Series consists of calibration standards based on the primary fundamental physic constants of thermal noise and blackbody radiation. This provides the ultimate accuracy when measuring extremely low noise figures (noise temperatures). Simple, and versatile to use, the NBS-Series is an ideal solution for noise source calibrations, radiometer test references and low noise amplifier tests.
| Maury Microwave | |
|---|---|
| Product Category | Noise Standards |
| Product Number | NBS-60 |
| Product Name | Cryogenic Noise Standards |
