PS1500L-8G High Frequency Low Loss Phase Stable Coaxial Cable
Ultra-Low Insertion Loss & Exceptional Phase Stability Rated Up to 8 GHz
Engineered for high-frequency RF systems, the PS1500L-8G features expanded LD-PTFE dielectric insulation, silver-plated copper inner conductor, and triple shielding structure for maximum signal integrity, phase stability during flexure, and superior power handling performance..
Max Frequency:8 GHz
Screening: >90 dB
Phase Stability ：±0.2 °/GHz
Outer Diameter:15.0 mm
Structure & Construction Characteristics
| Layer | Element | Material | Construction (mm) | Nom. O.D. (mm) |
|---|---|---|---|---|
| Inner Conductor | Center Conductor | Silver Plated Copper | 19 / 0.88 | 4.40 |
| Dielectric | Insulation | LD-PTFE | – | 12.90 |
| Inner Shield | Flat Ribbon Shield | Silver Plated Copper Strip | – | 13.22 |
| Interlayer | Barrier Tape | High Temperature Aluminium Foil | – | 13.35 |
| Outer Shield | Braided Shield | Silver Plated Copper Wire | – | 13.85 |
| Jacket | Outer Sheath | Light Blue FEP | – | 15.00 |
| Min. Static Bend Radius | 60.00 mm | Min. Dynamic Bend Radius | 120.00 mm |
|---|---|---|---|
| Weight | 0.432 kg/m | Operating Temperature | -55°C to +200°C |
Electrical & Mechanical Characteristics
| Impedance | 50 Ω | Capacitance | 88 pF/m |
|---|---|---|---|
| Velocity of Propagation | 76% | Max Operating Frequency | 8 GHz |
| Screening Effectiveness | > 90 dB | Dielectric Withstanding Voltage | 5000 V DC |
| Phase Change vs. Bending | ±0.2 °/GHz | Phase Change vs. Temperature (-45~+85℃) | ≤ 1500 PPM |
Attenuation & Power Handling @ 25℃ & Sea Level
Insertion Loss Calculation: IL = K1 * sqrt(F_MHz) + K2 * F_MHz [dB/100m]
Constants: K1 = 0.304208, K2 = 0.000591
| Frequency (MHz) | Nominal Attenuation (dB/100m @ 25°C & Sea Level) | Max Power Handling (W @ 40°C & Sea Level) |
|---|---|---|
| 100 | 3.10 | 13,440 |
| 200 | 4.42 | 9,429 |
| 300 | 5.45 | 7,653 |
| 500 | 7.10 | 5,872 |
| 900 | 9.66 | 4,316 |
| 1000 | 10.21 | 4,082 |
| 1500 | 12.67 | 3,290 |
| 2000 | 14.79 | 2,819 |
| 3000 | 18.44 | 2,261 |
| 6000 | 27.11 | 1,537 |
| 8000 | 31.94 | 1,305 |
Cross Reference / Equivalent Replacement The PS1500L-8G low loss phase stable coaxial cable is engineered as a direct drop-in replacement for Times Microwave SFT600 / SFT-600, delivering matched 8 GHz high-frequency capability, identical mechanical dimensions (15.00 mm outer diameter), and equivalent phase stability under flexure.
Frequently Asked Questions
How does LD-PTFE dielectric enhance the thermal and phase stability of PS1500L-8G?
Low-Density PTFE (LD-PTFE) offers a higher propagation velocity (76%) and reduced thermal expansion compared to solid PTFE. This minimizes phase variation under ambient temperature changes (-45°C to +85°C) and supports high-power continuous operations up to +200°C.
What shielding effectiveness does the triple-shielding structure provide?
The combination of a silver-plated copper strip inner shield, high-temperature aluminium foil interlayer, and silver-plated copper wire braid delivers over 90 dB of shielding effectiveness, preventing RF leakage and signal interference in dense electronic warfare and radar systems.
What are the bend radius requirements for static vs. dynamic installations?
The minimum static bend radius is 60.00 mm, while dynamic flexure applications require a minimum radius of 120.00 mm to maintain mechanical integrity and maintain phase stability within ±0.2 °/GHz.
