INDUSTRY COMPONENT

Coupler Port

A precision RF interface component in accelerating cavities that enables controlled energy coupling and signal transmission.

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Component Specifications

Definition
A coupler port is a critical RF/microwave interface component in particle accelerator accelerating cavities, designed to facilitate controlled electromagnetic energy transfer between the cavity and external systems. It serves as the entry/exit point for RF power injection, beam diagnostics signals, and vacuum connections while maintaining precise impedance matching and field stability within the cavity structure.
Working Principle
Operates on electromagnetic coupling principles where the port's geometry and position create controlled interaction between the cavity's resonant electromagnetic fields and external waveguides or coaxial lines. It transfers RF power into the cavity to maintain acceleration fields while minimizing reflected power through impedance matching, and may incorporate vacuum seals, cooling channels, and diagnostic access points.
Materials
High-purity oxygen-free copper (C10100/C10200) for RF surfaces, stainless steel (316L/304) for structural components, aluminum alloys for non-critical parts, ceramic (alumina Al2O3) for RF windows, and high-temperature brazing alloys (Cu-Ag, Au-Sn).
Technical Parameters
  • VSWR <1.1:1
  • Cooling Water-cooled with ≥10 L/min flow
  • Impedance 50 Ω standard
  • Vacuum Rating <1e-9 mbar
  • Connector Type WR-284 to 3-1/8" EIA flange
  • Power Handling Up to 500 kW CW
  • Frequency Range 100 MHz - 3 GHz
  • Temperature Range -20°C to +80°C
Standards
ISO 286-1, DIN 4000-14, IEC 60169-16

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Coupler Port.

RF coupler port accelerating cavity component microwave coupling particle accelerator parts impedance matching vacuum RF interface waveguide flange Coupler Port Coupler Port in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Accelerating Cavities

Resonant structures within accelerating waveguides that generate and sustain electromagnetic fields to impart kinetic energy to charged particles.

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Engineering Analysis

Risks & Mitigation
  • RF arcing at high power
  • Vacuum leaks at flange interfaces
  • Thermal deformation from inadequate cooling
  • Impedance mismatch causing reflected power
  • Material degradation from radiation exposure
FMEA Triads
Trigger: Improper flange torque or damaged sealing surfaces
Failure: Vacuum leak leading to system contamination and pressure rise
Mitigation: Implement controlled torque procedures, use helium leak testing, and maintain spare validated seals
Trigger: Insufficient cooling flow or blockage
Failure: Thermal deformation altering RF characteristics and potential material failure
Mitigation: Install flow sensors with interlock protection, regular cooling system maintenance, and thermal monitoring
Trigger: Impedance mismatch due to manufacturing tolerances or assembly errors
Failure: Excessive reflected power damaging RF sources and unstable cavity operation
Mitigation: Precision manufacturing with RF testing, tuner integration, and pre-installation network analysis

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm on critical RF surfaces, ±0.1° on angular alignment, Ra <0.8 μm surface finish
Test Method
Vector network analyzer (VNA) for S-parameters, helium mass spectrometer leak test, thermal imaging under load, high-power RF testing with directional couplers

Buyer Feedback

★★★★☆ 4.5 / 5.0 (21 reviews)

"The Coupler Port we sourced perfectly fits our Computer, Electronic and Optical Product Manufacturing production line requirements."

"Found 15+ suppliers for Coupler Port on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Coupler Port is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of a coupler port in accelerating cavities?

The primary function is to transfer RF power into the cavity to create and maintain the electromagnetic fields that accelerate particles, while providing impedance matching to minimize reflected power and ensuring vacuum integrity.

Why are coupler ports typically made from oxygen-free copper?

Oxygen-free copper provides excellent electrical conductivity, low RF surface resistance, good thermal conductivity for heat dissipation, and minimizes outgassing in high-vacuum environments required in particle accelerators.

How does impedance matching affect coupler port performance?

Proper impedance matching (typically 50Ω) maximizes power transfer efficiency, minimizes reflected power that could damage RF sources, reduces standing waves, and ensures stable cavity field distribution for consistent particle acceleration.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Core Material Coupling Mechanism