EMC Chamber Interfaces

Cable Feedthrough Channels and RF Connector Panel Interfaces in EMC Test Chambers

In EMC test chambers, cable feedthrough systems and RF connector panels are critical components that ensure both electromagnetic integrity and reliable equipment connectivity.

Cable Entry Panels
(Feedthrough Channels)

Functions

Technical Specifications

  • Provide electromagnetic shielding while allowing signal, power, and data cables to pass into the EMC chamber.

  • Prevent external interference from affecting the test environment.

  • Offer appropriate RF filtering for both power and signal lines.

Material: Typically copper, aluminum, or galvanized steel, chosen for high conductivity and magnetic shielding.
Shielding Effectiveness: ≥100 dB across 10 kHz – 40 GHz; enhanced protection at low frequencies against magnetic fields.
Dimensions & Design: Customizable based on cable type and quantity; modular construction allows expansion when needed.

Filtering Systems

Seals & Isolation Materials

Signal & Data Lines: Specialized feedthroughs for Ethernet, USB, and fiber optics, ensuring low‑loss, high‑speed transmission.

  • Conductive gaskets and sealing compounds ensure RF tightness.

  • Common materials: copper, silver‑plated elastomers, or nickel‑graphite composites.

Power Line Filters: Prevent RF leakage through AC/DC lines.

  • Frequency range: 150 kHz – 40 GHz

  • Typical attenuation: ≥80 dB

CHAMBER SHIELDING

RF Connector Panel Interfaces

High-performance coaxial feedthroughs and custom-engineered interface panels designed to maintain maximum shielding effectiveness across all frequency bands.

Functions

Technical Specifications

Panel Design

RF Attenuators & Filters

  • Connector Types

N‑type: Medium frequencies (0–18 GHz)
SMA: High frequencies (up to 26.5 GHz or higher)
BNC/TNC: Low‑frequency and signal lines
7/16 DIN: High‑power RF applications

  • Modular structure allows integration of various connector types.

  • Material: Aluminum or stainless steel, corrosion‑resistant.

  • Mounting: Installed on chamber walls for easy access.

  • Attenuators regulate RF signal power levels.

  • Low‑loss filters selectively pass or block specific frequency bands.

  • Enable reliable connections between test equipment inside the chamber and external devices.

  • Maintain shielding performance and prevent RF leakage.

  • Provide flexible connectivity options for diverse instruments.

  • Frequency Range: 0 Hz – 40 GHz

  • Shielding Performance: ≥100 dB attenuation