XMA Microwave Adapters & Terminations

Amphenol Military & Aerospace’s XMA Microwave adapters and terminations deliver precision interconnect performance for broadband microwave and millimeter‑wave systems operating from DC to 110 GHz. Built on aerospace‑grade machining and verified impedance control, these devices ensure stable, repeatable 50 Ω transitions suitable for critical radar, electronic warfare, and communications architectures.

Product Overview

XMA Microwave products include in‑series and between‑series adapters, hermetic adapter variants, and precision 50 Ω terminations. The line supports common interface families including SMA, SMP, SMPM, SMPS, 2.92 mm (K), 2.4 mm, 1.85 mm, and 1.0 mm designs. Each model maintains low VSWR across its specified frequency range, enabling reliable impedance continuity within broadband and mmWave signal chains.

Design and Performance Considerations

• Machined from corrosion‑resistant stainless‑steel or equivalent conductive alloys with precision dielectric alignment.
• Broadband VSWR sweep verification ensures consistent reflection performance through 110 GHz.
• Available hermetic variants employ glass‑to‑metal sealing for vacuum, pressurized, or environmental isolation needs.
• Optimized interface geometries ensure adapter repeatability and mechanical durability in laboratory and field conditions.

Integration and Compatibility

XMA Microwave adapters interface seamlessly with SV Microwave and Amphenol CDI high‑frequency connectors, supporting both ConvergeRF mixed‑diameter cable assemblies and standard semi‑rigid coax lines. These components unify metrology‑grade precision and rugged defense‑system reliability across open‑architecture (VPX/SOSA) and traditional platform designs.

Applications

• Radar and electronic warfare transmit/receive modules
• SATCOM uplink/downlink channels and network ground stations
• OpenVPX embedded processing and sensor payload interfaces
• Calibration and metrology test systems up to 110 GHz

These solutions are engineered and tested within Amphenol’s military and aerospace quality framework, ensuring documented microwave product audit and RF impedance verification processes for dependable performance in mission‑critical applications.