High Performance RF Cable Assemblies

High‑Reliability Broadband Cable Assemblies

Amphenol CDI High Performance RF Cable Assemblies extend Amphenol Military & Aerospace’s coaxial portfolio into low‑loss, precision‑matched interconnects supporting radar, SATCOM, electronic warfare, test instrumentation, and quantum computing environments. Each assembly maintains broadband 50 Ω impedance and low VSWR across microwave and mmWave frequencies.

Assembly Families

• RF Jumpers — Flexible, low‑loss coax jumpers available on 0.079 in cables with 1.85 mm, 2.40 mm, 2.92 mm, and 3.5 mm connectors. Standard or custom lengths support lab and flight‑hardware integration.
• CoreHC™ High‑Density Interconnects — Solderless, 2.5 mm‑pitch ganged coax systems enabling space‑constrained board‑to‑cable transitions through DC‑70 GHz with tight impedance control.
• CoreCryo™ Non‑Magnetic Assemblies — Cryogenic extensions of CoreHC for quantum devices, using non‑magnetic materials and thermally optimized construction for sub‑Kelvin stability.
• Cryogenic Semi‑Rigid Assemblies — Stainless‑steel, CuNi, or NbTi semi‑rigid lines designed for dilution refrigerators and cryogenic research where mechanical stability and low thermal load are critical.

Key Technical Characteristics

• 50 Ω broadband impedance with low‑VSWR design
• Precision machined RF interfaces: SMA, 2.92 mm (K), 2.4 mm, 1.85 mm, SMP, SMPM, and SecureThread™ push‑on options
• Materials engineered for reliable performance across temperature extremes, including non‑magnetic variants
• Support for custom lengths and mixed‑series configurations minimizing loss and improving mechanical fit in tight layouts

Applications

• Radar, SATCOM, and electronic warfare transmit/receive chains
• Avionics and test equipment requiring repeatable, low‑loss jumpers
• Quantum computing cryostats and scientific cryogenic apparatus
• Industrial and space systems needing phase‑stable, durable coax links

Integration and Customization

Assemblies can be specified with Amphenol CDI’s SecureThread™ SMPM locking interface, mixed‑series connectors, or bespoke lengths to exact phase and amplitude requirements. Combined with Amphenol’s internal machining and audit workflow, these Assemblies provide documented performance traceability within the group’s qualified RF portfolio.