Avionics RF Cable Assemblies

Avionics RF Cable Assemblies from Amphenol Military & Aerospace’s CIT division provide durable and phase‑stable coaxial connections for aircraft and mission electronics. Each assembly combines precision 50 Ω connectors with low‑loss flexible coax to preserve signal integrity under continuous vibration and thermal cycling experienced in flight conditions.

Construction and Performance

• Available with SMA, TNC, SMP, or SMPM interfaces providing broadband, low‑VSWR coupling between avionics modules, antennas, and RF subsystems.
• Ruggedized cable construction using multi‑layer braids and reinforced dielectric for crush, torque, and bend resistance without compromising impedance control.
• Maintains stable amplitude and phase performance through vibration and flexure for long‑term system calibration stability.
• Typical operating impedance: 50 Ω ± 2 %, ensuring consistent matching across transmit and receive chains.

Environmental Suitability

• Designed for airborne, military, and high‑reliability commercial‑aerospace environments.
• Withstands temperature and pressure variations encountered in unpressurized bays and outdoor antenna runs.
• Optional armoring and strain‑relief boots protect against mechanical fatigue in tight routing spaces.

Integration and Application

• Interconnects radar, communications, navigation, and sensor equipment requiring phase‑matched or low‑loss RF links.
• Compatible with D38999 and other MIL‑Spec interface harness systems for hybrid signal‑and‑power architecture integration.
• Custom lengths, connectors, and jacketing materials available through Amphenol’s engineering support for platform‑specific routing or EMC requirements.

These assemblies extend Amphenol’s avionics interconnect portfolio, complementing its range of circular connectors, terminations, and high‑frequency interfaces to deliver verified 50 Ω performance from cockpit to antenna.