Rosenberger introduces new WSMP® multichannel connectivity solutions for quantum computing applications

Rosenberger Hochfrequenztechnik GmbH & Co. KG is expanding its product offering for quantum computing with a new, highly integrated connector series: the WSMP^® Multichannel Series, now available in 16- and 32-channel configurations. It has been specifically developed for use in cryogenic systems and vacuum environments and enables high channel density combined with a compact design.

Connectivity Solutions for the Quantum World of Tomorrow

Quantum computers are widely regarded as a key technology for future scientific and industrial breakthroughs. However, the operation of such systems requires interconnect solutions that perform reliably under extreme conditions—especially at temperatures approaching absolute zero. Rosenberger offers a broad portfolio ranging from RF connectors for cryogenic applications, non-magnetic coaxial connectors, and superconducting cables, to hermetically sealed vacuum feedthroughs.

"Our solutions ensure stable and highly reliable connectivity in a small installation space. In doing so, we contribute significantly to the development of future quantum technologies,” explains Florian Reiner, Product Manager Semicon & Test at Rosenberger.

Technical features of the new WSMP® Multichannel Series

Based on the WSMP^® standard (IEC 61169-69 (SMP3)), the new multichannel connectors are designed to deliver maximum packing density and optimal thermal coupling. They have been specially developed for use in quantum computers, where hundreds of signal channels must be routed in a compact, vacuum-tight, and thermally coupled manner.

Benefits at a glance:

• Extremely compact design for space-saving integration
• Thermally optimised intermediate mounting for cryostats
• Compatibility with ceramic attenuators for noise suppression
• Non-magnetic materials to minimise electromagnetic interference
• Cable assemblies (including stainless steel, CuproNickel, NiobiumTitanium)

Flexible Portfolio for Scalable Quantum Systems

The WSMP^® Multichannel Series is part of a modular, holistic solution platform. Rosenberger offers both standard components and highly customized solutions to support scalable quantum system architectures:

Standard Products:

• PCB and cable connectors
• Hermetically sealed adapter feedthroughs
• Semi-rigid/semi-flex cables, adapters, attenuators

Custom Components:

• Hermetic adapter flanges: single- to multichannel with glass-to-metal seals made of Kovar, leak rates ≤ 10⁻⁸ mbar·l/s, 100% leak-tested
• Complete subsystems such as coaxial sticks, sample pucks, or RF components for dilution refrigerator setups

A Trusted Partner for Research and Industry

Rosenberger cooperates closely with leading research institutions and industry partners in order to bridge the gap between laboratory-scale quantum research and practical applications. Initial projects with universities, startups, and OEMs are already underway.

“With the WSMP^® Multichannel Series, we’re closing a crucial gap in the connectivity landscape for quantum computing,” says Stefan Brenner, Sales Manager at Rosenberger. “Our customers increasingly demand compact, thermally optimised, and sealed solutions—and that’s precisely what this new platform delivers.”

For more information, please visit: https://www.rosenberger.com/markets/test-measurement/cryogenic-and-quantum-technology