RG400 Double Shield Coaxial Cable: Features & Applications

RG400 Cable Double Shield is a high-performance 50-ohm coaxial RF cable designed for reliable signal transmission in demanding electronic environments. Its double-shield construction provides enhanced protection against electromagnetic interference (EMI), radio frequency interference (RFI), and unwanted signal leakage. Its flexible construction allows convenient routing around RF equipment and assemblies.

What Is RG400 Cable Double Shield?

RG400 Cable Double Shield is a 50-ohm flexible coaxial RF cable designed for high-frequency signal transmission. It generally consists of a stranded silver-plated copper center conductor, PTFE dielectric, inner metallic shield, outer braided shield, and protective jacket. The two shielding layers provide an additional barrier against external interference and help reduce RF energy leakage.

RG400 Cable Double Shield Specifications

Specification Typical Characteristics

Cable Type Double-Shielded Coaxial Cable

Impedance 50 Ohms

Outside Diameter Approximately 4.95 mm

Center Conductor Stranded Silver-Plated Copper

Dielectric PTFE

Shielding Double Shield

Construction Flexible

Temperature Range -55°C to +200°C

Connector Options SMA, N-Type, TNC, BNC

Exact performance can vary by manufacturer, cable length, connector configuration, and operating conditions.

Key Features

RG400 Cable Double Shield provides 50-ohm impedance, flexible construction, silver-plated conductor, PTFE dielectric, double shielding, enhanced EMI protection, low signal leakage, temperature capability, and broad connector compatibility.

Applications

Aerospace and Defense

Applications include avionics, aircraft communication, navigation, radar, RF instrumentation, satellite electronics, and antenna assemblies.

Telecommunications

Used in wireless equipment, RF modules, cellular infrastructure, antennas, transmitters, receivers, amplifiers, and filters.

Test and Measurement

Suitable for spectrum analyzers, signal generators, network analyzers, RF power meters, oscilloscopes, and calibration equipment.

How to Choose RG400 Cable Double Shield

Consider operating frequency, 50-ohm impedance, cable length, attenuation, temperature range, shielding requirements, connector type, power handling, flexibility, and installation environment. Avoid excessive bending, crushing, twisting, and mechanical stress during installation.

Conclusion

RG400 Cable Double Shield combines flexible construction, 50-ohm impedance, PTFE dielectric, temperature capability, and enhanced electromagnetic shielding. These characteristics make it suitable for aerospace, defense, telecommunications, instrumentation, wireless communication, industrial electronics, and RF test applications. Selecting the correct frequency rating, connector, cable length, power capability, and environmental specification helps ensure reliable RF performance.

Frequently Asked Questions

What is RG400 Cable Double Shield?

It is a 50-ohm flexible coaxial RF cable with two shielding layers designed to improve electromagnetic protection and signal integrity.

Is RG400 a 50-ohm cable?

Yes. RG400 is generally manufactured with a 50-ohm characteristic impedance.

Is RG400 cable flexible?

Yes. RG400 is a flexible coaxial cable and is more flexible than semi-rigid cables such as RG405.

What connectors are available for RG400?

Common options include SMA, N-Type, TNC, BNC, and other compatible RF connectors.