High Frequency RF Cable Connectors

Micro‑Coax High Frequency Connectors from Amphenol Military & Aerospace (AMAO) are precision RF interfaces designed for high‑density microwave and mmWave assemblies. They extend the established SMP, SMPM, and SMPS push‑on families into micro‑scale form factors compatible with semi‑rigid and flexible micro‑coax cables, supporting continuous operation to 110 GHz with precise 50 Ω impedance control.

Design and Performance

• Frequency coverage: DC to 110 GHz with low‑VSWR bandwidth stability.
• Interfaces: precision SMP, SMPM, SMPS push‑on styles along with 2.92 mm, 2.4 mm, 1.85 mm, and 1.0 mm coaxial series.
• Impedance: controlled 50 Ω design for accurate signal match and minimal reflection.
• Form factor: miniature geometry accommodating micro‑coax cable terminations within dense modules or board‑level interconnects.
• Construction: precision‑machined metal bodies and rugged coupling interfaces for reliable microwave performance under vibration and thermal stress.

Integration and Mounting Options

Available as board‑mount, cable‑mount, and adapter variants, these connectors enable direct transition between micro‑coax lines and standard RF interfaces. The precision push‑on designs support blind‑mate engagement for modular electronics, test fixtures, and multi‑channel microwave assemblies. Adaptations for hermetic and environmental sealing are available in specialty configurations.

Typical Applications

• Radar and electronic warfare modules using phased‑array antenna architectures
• SATCOM terminals and RF payload equipment requiring mmWave bandwidth
• OpenVPX and SOSA‑aligned payload modules with dense RF channel requirements
• Instrumentation and test equipment needing metrology‑grade precision connections

Selection Guidance

When selecting a Micro‑Coax High Frequency Connector, engineers should match interface series (SMP to 1.0 mm) with desired frequency and mechanical envelope. Push‑on SMP/SMPS styles provide blind‑mate simplicity for compact modules, while threaded and flanged designs accommodate test and adapter requirements. All variants maintain rugged 50 Ω continuity and broadband return‑loss performance across the full mmWave range.