As a next-generation computing paradigm, quantum computers based on superconducting, trapped-ion, spin, and other qubit architectures aim to solve problems that are intractable for classical machines. In particular, superconducting quantum systems, qubits operate at tens of millikelvin and are driven and read out by RF and microwave signals in the GHz range. At every stage of the signal chain, components with ultra-low noise, high linearity, wide bandwidth, and stable temperature behavior are required to preserve fragile quantum states.

WithWave provides a reliable RF front-end that links quantum processors at cryogenic temperatures to room-temperature control and measurement instruments. Our cryogenic low-noise amplifiers, attenuators, and infrared filters enable reproducible measurements and robust scaling—from small research setups to multi-hundred- or multi-thousand-qubit systems.