What factors affect RF cable performance?
22-07-2025
When working with RF signals, cable performance can make or break your application. But what exactly influences the quality and reliability of an RF cable?
Here are the key factors:
Cable type and construction
The choice of coaxial cable (e.g. RG-58, RG-142, LMR-195) affects attenuation, flexibility, and power handling.
Frequency range
Higher frequencies result in higher signal loss. The right cable must match your application’s frequency demands.
Shielding
Single vs. double shielding determines how well the cable protects against electromagnetic interference (EMI). For critical applications, double shielding is strongly recommended.
Dielectric material
Materials like PTFE or PE impact signal stability and impedance control. PTFE offers better performance at higher frequencies.
Connector quality
Poor connector selection or installation can lead to impedance mismatch, reflections, and signal degradation.
Cable length
Longer cables increase signal loss. Keeping the cable as short as possible helps maintain signal strength.
Environmental conditions
Heat, moisture, and mechanical stress can impact performance. Choosing cables with the right jacket and material for the environment is crucial.
At Summit Electronics, we help you select the right RF cable for your needs — whether it's short-range IoT, outdoor antenna routing, or lab-grade test setups.
Curious how these factors apply to your specific project? Let’s talk.
…
All Basics for Innovation...
Summit Electronics
