PS1000L-12.4G-F 12.4GHz Low Loss Phase Stable Coaxial Cable (10mm)
12.4GHz Precision Phase-Stable Low-Loss Interconnect Solution
The PS1000L-12.4G-F is a high-performance 50 Ohm low-loss phase-stable RF coaxial cable engineered for demanding microwave applications operating up to 12.4 GHz. Featuring low-density PTFE dielectric (84% Vp), double silver-plated copper shielding (>90 dB), and an FEP outer jacket, it combines excellent phase tracking with thermal stability from -55℃ to +165℃.
Max Frequency:DC-12.4GHz
Velocity of Prop.：84%
Screening Effectiveness: > 90 dB
Outer Diameter:10mm
Structure & Construction Characteristics
| Layer / Component | Material | Construction (mm) | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Silver Plated Copper | 1 / 3.00 | 3.00 |
| Insulation (Dielectric) | LD-PTFE (Low Density PTFE) | – | 8.24 |
| Inner Shield | Silver Plated Copper Strip | – | 8.56 |
| Outer Shield | Silver Plated Copper Wire Braid | – | 9.20 |
| Jacket | Gray FEP | – | 10.00 |
Mechanical & Environmental Parameters
| Min. Bending Radius (Static) | 50.0 mm |
| Min. Bending Radius (Dynamic) | 100.0 mm |
| Nominal Weight | 0.206 kg/m |
| Operating Temperature Range | -55 ℃ to +165 ℃ |
Electrical & Mechanical Characteristics
| Electrical Parameter | Standard Value |
|---|---|
| Impedance | 50 Ω |
| Capacitance | 80 pF/m |
| Velocity of Propagation | 84% |
| Max Operating Frequency | 12.4 GHz |
| Screening Effectiveness | > 90 dB |
| Dielectric Withstanding Voltage | 4000 V DC |
| Phase Stability vs. Bending | ±0.3 °/GHz |
| Phase Stability vs. Temperature (-45~+85℃) | ≤ 750 PPM |
Attenuation & Power Handling @ 25℃ & Sea Level
Insertion Loss Formula: IL = K1 * sqrt(F_MHz) + K2 * F_MHz (dB/100m)
Attenuation Constants: K1 = 0.31618, K2 = 0.00045
| Frequency (MHz) | Nom. Attenuation (dB/100m @ 25℃) | Max. Power Handling (W @ 40℃) |
|---|---|---|
| 300 | 5.61 | 4516 |
| 500 | 7.29 | 3474 |
| 1000 | 10.45 | 2426 |
| 2000 | 15.04 | 1685 |
| 3000 | 18.66 | 1358 |
| 4000 | 21.79 | 1163 |
| 5000 | 24.60 | 1030 |
| 6000 | 27.18 | 932 |
| 8000 | 31.86 | 795 |
| 10000 | 36.10 | 702 |
| 12400 | 40.76 | 622 |
Direct Functional Equivalent: The PS1000L-12.4G-F serves as a high-reliability replacement for standard 10mm low-loss phase-stable cables requiring high velocity ratio (84% Vp) and stable phase tracking under thermal cycling up to 12.4 GHz.
Frequently Asked Questions
How does the LD-PTFE dielectric in PS1000L-12.4G-F enhance phase stability compared to solid PTFE cables?
The low-density PTFE (LD-PTFE) structure increases the velocity of propagation to 84% by introducing microscopic air pockets. This significantly reduces dielectric loss and minimizes the phase transition knee around 19℃ typical of solid PTFE, keeping thermal phase change within ≤750 PPM across -45℃ to +85℃.
What shielding construction is used to achieve >90 dB screening effectiveness up to 12.4 GHz?
PS1000L-12.4G-F utilizes a composite dual-shielding system consisting of an inner silver-plated copper helical strip layer providing 100% coverage, backed by an outer silver-plated copper wire braid. This dual construction prevents high-frequency RF leakage and maintains low transfer impedance.
What are the critical assembly and mechanical bend limits for maintaining electrical performance?
The cable has a static minimum bend radius of 50.0 mm and a dynamic flex radius of 100.0 mm. Adhering to these limits ensures phase change remains within ±0.3 °/GHz during flexure and prevents mechanical deformation of the 3.00mm inner conductor and LD-PTFE dielectric layer.
