0.141″ Semi-Flexible Low-Loss RF Coaxial Cable, 20 GHz Rated

Semi-Flexible Low-Loss Coaxial Cable for 20 GHz RF and Microwave Applications

The CMG141 semi-flexible, low-loss coaxial cable is designed for high-performance RF and microwave transmission up to 20 GHz . With a large-diameter silver-plated copper or copper-clad steel inner conductor, precision PTFE dielectric, and a robust tinned copper braided outer conductor, the CMG141 provides excellent signal integrity, strong shielding, and dependable flexibility for dense RF assemblies and high-frequency instrumentation.

Stable Electrical Performance for High-Frequency Signal Integrity

The CMG141 coaxial cable maintains a 50 Ω ±1.1 Ω characteristic impedance and supports clean wideband transmission up to 20 GHz . A 70% velocity of propagation, 4.7 ns/m time delay, and a capacitance of 98 pF/m ensure consistent phase behavior for demanding RF paths. Attenuation remains low across the band—2.100 dB/m at 20 GHz—providing efficient signal delivery for high-frequency modules and microwave measurement systems. Shielding effectiveness above 100 dB minimizes interference in sensitive environments.

Durable Semi-Flexible Construction with Thermal Stability

Built with a 3.55 mm tinned copper braid, the CMG141 offers strong mechanical stability and semi-flex formability suitable for routed internal connections in RF equipment . The cable supports a 8.00 mm single-bend radius, enabling compact installation without compromising electrical performance. With an operating temperature range of −55 °C to +125 °C, the CMG141 meets the requirements of aerospace, industrial, laboratory, and communication systems where thermal endurance is essential.

Applications Requiring Flexible, Low-Loss RF Performance

The CMG141 semi-flex coaxial cable is ideal for RF test benches, microwave subassemblies, radar modules, communication systems, and instrumentation requiring stable 20 GHz performance with flexible routing. As part of Mechanc’s Low-Loss Semi-Flexible Coaxial Cable Series, it offers dependable signal integrity for R&D, integration, and production environments.

Manufactured by Mechanc Shanghai Information Technology, the CMG141 semi-flexible coaxial cable provides low-loss transmission, strong shielding, and mechanical reliability for RF and microwave applications up to 20 GHz. REACH & RoHS compliant.