Phase Stable Cable Assemblies

Phase Stable Cable Assemblies

Some systems need more than low loss. They need a signal that arrives on time, every time. That’s what phase stability means. A phase stable cable assembly keeps its electrical length steady, even when temperature changes or the cable bends. Standard cables often shift phase near room temperature. This creates a “knee” in performance that throws off sensitive readings.

Our phase stable cable assemblies use advanced fluoropolymer dielectrics to avoid that problem. As a result, you get a flat, predictable phase response from -40°C to +85°C. We also control phase drift during flexing, so your readings stay accurate after repeated bending. Every assembly gets tested, and we can phase-match cables into sets, pair by pair. That’s why test engineers, radar designers, and satellite teams trust us for repeatable, drift-free performance.

Why Choose Our Phase Stable Cable Assemblies

• Flat Phase vs. Temperature — stays steady from -40°C to +85°C, with no sharp “knee” near room temperature.
• Stable Phase vs. Flexure — bending and coiling barely move the phase reading.
• Precision Phase Matching — cables matched within ±2° or better, set by set.
• Wide Frequency Coverage — from DC up to 67 GHz, depending on connector type.
• Low Loss, Too — fluoropolymer dielectric keeps attenuation down, not just phase.
• Rugged Build — reinforced jackets and connectors handle daily bench use without complaint.
• 100% Tested — every cable ships with a real test record, not just a spec sheet.
• Custom Lengths and Connectors — N, SMA, 3.5mm, 2.92mm, TNC, and more, built to order.

Technical Specifications

Phase stable cable assemblies live or die on a few key numbers. Here’s what we design and test to:

Standard PTFE cables tend to shift sharply between 15°C and 25°C. That’s the “knee” we mentioned earlier. Our fluoropolymer dielectric smooths this curve out, so your phase stays flat right where most labs actually operate.

Applications of Phase Stable Cable Assemblies

-VNA Testing and Calibration: Keep your measurements repeatable, test after test, even as the cable gets moved and re-coiled.

-Phased Array Radar: Match phase across dozens of channels, so your beam steers where you point it.

-5G and 6G mmWave Testing: Handle beamforming and massive MIMO test setups without losing timing accuracy.

-Satellite and Space Systems：Survive wide temperature swings in orbit without drifting off phase.

-Electronic Warfare and Defense: Stay accurate under vibration, shock, and extreme heat or cold.

-Semiconductor and ATE Test: Keep production test data consistent, unit after unit, shift after shift.

-Medical Imaging: Support flexing cables in MRI and similar systems without signal drift affecting image quality.

Get a Quote

Tell us your frequency range, connector type, and how many matched cables you need. In return, we’ll recommend the right build and send a quote fast. Whether it’s a single test cable or a full set of phase-matched channels, our engineering team is ready to help.

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FAQ

1. What is a phase stable cable assembly?

A phase stable cable assembly keeps its electrical length steady when temperature or flexing changes. Standard cables often shift phase without warning. Phase stable designs remove that risk, so your measurements stay accurate.

2.How is phase stability different from low loss?

Low loss means less signal drops along the cable. Phase stability means the signal’s timing stays the same, even when you bend the cable or the temperature shifts. Some applications need both, and we build for both.

3. What frequency range do your phase stable coaxial cable assemblies cover?

Most of our builds run from DC up to 67 GHz. We also offer mmWave versions for higher frequencies. Just tell us your test setup, and we’ll match the right cable to it.

4. Can you build custom phase-matched sets?

Yes. We match cables in sets, so every channel arrives in phase together. This works well for phased array radar, MIMO test benches, and other multi-channel systems.

5. How rugged are these cables for daily lab use?

Very rugged. We build them to handle repeated bending and rough handling, so your calibration stays valid, run after run, without constant re-testing.