In applications such as superconducting quantum computers, radio telescopes, and ultra-low-noise receiver systems, RF and microwave signals are often handled at temperatures from a few kelvin down to the millikelvin range. At these temperatures, every fraction of a decibel of added noise can directly limit system sensitivity, qubit fidelity, or measurement dynamic range. Components used in the cryostat must deliver low noise, low loss, and predictable behavior over repeated thermal cycles.

WithWave’s cryogenic portfolio—featuring cryogenic low-noise amplifiers, cryogenic attenuators, and cryogenic infrared filters—is designed to build robust RF chains between cryogenic stages and room-temperature test equipment. These products help engineers boost weak signals, manage thermal noise along input and output lines, and block unwanted infrared radiation, enabling repeatable, high-fidelity measurements in advanced cryogenic systems.