RF Adapters

Previous productRF Waveguides

Next productRF Attenuators

Amphenol Military & Aerospace (AMAO) RF Adapters provide precision 50 Ω transitions between coaxial and waveguide interfaces used across defense, aerospace, and advanced test environments. This grouped portfolio aggregates all AMAO adapter families—including standard, waveguide, test and measurement, and quantum / cryogenic variants—into a unified resource for engineers requiring broadband impedance‑matched coupling from DC to 110 GHz.

Adapter Families

• Standard RF Adapters – same‑series and between‑series configurations such as SMA, TNC, N‑Type, BNC, SMP, and SMPM supporting rugged 50 Ω low‑VSWR performance.
• Waveguide RF Adapters – precision‑machined transitions linking rectangular waveguides to coax interfaces for radar and microwave payloads.
• Test & Measurement RF Adapters – calibration‑grade, metrology‑verified connectors ensuring repeatable impedance and phase integrity for instrumentation up to mmWave frequencies.
• Quantum & Cryo RF Adapters – non‑magnetic, cryogenic‑ready designs for low‑temperature systems integrating superconducting or quantum‑electronics stages.

Technical Characteristics

• 50 Ω coaxial impedance continuity ensuring broadband low‑VSWR transmission
• Threaded, push‑on, and waveguide‑flange mechanical interfaces
• Options for hermetic or sealed variants to support vacuum or pressure environments
• Frequency coverage spanning DC through 110 GHz depending on interface series
• Construction materials including stainless steel, beryllium‑copper contacts, and RoHS‑compliant plating systems

Applications

RF adapters serve throughout AMAO’s Microwave and RF interconnect portfolio wherever reliable coax‑to‑coax or waveguide transitions are required, including:

• Radar and electronic warfare (EW) systems requiring phase‑matched links
• SATCOM ground and airborne terminal equipment
• Automated test and calibration instrumentation
• Quantum computing and cryogenic measurement chains
• Space and vacuum environments utilizing hermetic adapter forms

Selection Guidance

Choose Standard RF adapters for common 50 Ω microwave interfaces; Waveguide adapters for coax integration to rectangular or circular waveguide paths; Test and Measurement adapters where metrology‑grade repeatability is required; and Quantum & Cryo adapters for non‑magnetic, low‑temperature integration. All variants leverage Amphenol’s rugged machining and impedance control heritage to maintain signal integrity across harsh environments.