Low Loss RF Cable Assemblies

Amphenol Military & Aerospace’s IntelliConnect Low Loss RF Cable Assemblies provide phase‑stable, low‑attenuation transmission across the microwave spectrum in flexible or semi‑flexible constructions. Built on Insulated Wire Inc. (IW) cables, each assembly maintains controlled 50 Ω impedance and is 100% electrically tested to verify return‑loss and insertion‑loss performance before despatch.

Core Product Families

• Low Loss IW Series: Tiered models from IW125 through IW4806 cover a wide frequency range with consistent flexibility. Cables may be supplied with internal or external armor, optional IP68 sealing, and fully plotted frequency response data.
• Semi‑Flexible Spiral Strip Series (I402 / I405): Composite strip‑and‑braid shield construction offers a phase‑stable alternative to standard semi‑rigid coax while retaining compatibility with common SMA and similar connectors. The FEP jacket withstands −55 °C to +200 °C and resists fluids and chemicals.
• Conformable Assemblies: Tin‑soaked copper‑braid outer conductors allow permanent shaping by hand at installation without specialized tools, maintaining impedance and mechanical integrity.
• LMR®‑Type Assemblies: Broadband, flexible, low‑loss options used where RG cables cannot meet system loss or frequency requirements.

Design and Performance Options

• Armoured or ruggedized versions for harsh‑environment and outdoor installations
• Phase‑matched sets for coherent‑signal and multi‑channel radar configurations
• Flexible routing with short minimum‑bend radii and stable VSWR
• Optional internal strain relief and moulded boots for enhanced mechanical life
• Connector interfaces including SMA, TNC, N‑Type, and SMP/SMPM series

Applications

These assemblies are used across defense, aerospace, satellite communications, electronic warfare, medical electronics, research instrumentation, rail traction, and marine systems requiring reliable microwave interconnects. Typical implementations include radar feedlines, test‑bench jumpers, and low‑loss intra‑rack cabling where phase stability and repeatable impedance are critical.

Engineering and Manufacturing

Manufactured within IntelliConnect’s UK and US facilities, the product line combines in‑house precision connector termination with short lead times for custom lengths and configurations. Free design assistance and documentation support ensure each build aligns with required mechanical routing, environmental sealing, and electrical specifications.