PS800L-18G Phase Stable RF Coaxial Cable
18 GHz High Frequency | Low Loss | Phase Stable Design
Engineered for demanding RF transmission up to 18 GHz, offering high power handling, low attenuation, high velocity of propagation (76%), and dependable phase stability under bending for microwave test and communication infrastructure.
Max Frequency: 18 GHz
Screening: >90 dB
Impedance: 50 Ω
Phase Stability: ±0.3°@18GHz
Structure & Construction Characteristics
| Structure Layer | Item / Parameter | Material / Spec | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Material | Silver Plated Copper | 1.88 |
| Construction | 19/0.38 mm | ||
| Insulation | Material | LD-PTFE | 5.55 |
| Inner Shield | Material | Silver Plated Copper Strip | 5.75 |
| Outer Shield | Material | Silver Plated Copper Wire | 6.26 |
| Jacket | Material | Blue TPU | 8.00 |
Electrical Performance Parameters
| Parameter | Standard Value | Parameter | Standard Value |
|---|---|---|---|
| Impedance | 50 Ω | Capacitance | 88 pF/m |
| Velocity of Propagation | 76% | Max Operating Frequency | 18 GHz |
| Screening Effectiveness | > 90 dB | Dielectric Withstanding Voltage | 2500 V@DC |
| Phase Change vs. Bending | ±0.3 °/GHz | Phase Change vs. Temp (-45~+85℃) | ≤ 1500 PPM |
Attenuation & Power Handling @ 25℃ & Sea Level
Insertion Loss Formula: IL = K1 * sqrt(F_MHz) + K2 * F_MHz
K1 Constant: 0.517315 | K2 Constant: 0.001806
| Frequency (MHz) | Attenuation (dB/100m) | Power Handling (W) |
|---|---|---|
| 300 | 9.50 | 1543 |
| 500 | 12.47 | 1543 |
| 1000 | 18.16 | 807 |
| 2400 | 29.68 | 494 |
| 3000 | 33.75 | 434 |
| 6000 | 50.91 | 288 |
| 8000 | 60.72 | 241 |
| 10000 | 69.79 | 210 |
| 12400 | 80.00 | 183 |
| 15000 | 90.45 | 162 |
| 18000 | 101.91 | 144 |
Mechanical & Environmental Properties
| Parameter | Standard Value |
|---|---|
| Min Bending Radius (Static) | 30.00 mm |
| Min Bending Radius (Dynamic) | 60.00 mm |
| Weight | 0.114 kg/m |
| Operating Temperature | -55 ~ +85 ℃ |
Cross Reference Note: PS800L-18G serves as a direct high-power, low-loss replacement for standard 8.0mm / 0.315″ low-loss flexible phase-stable coaxial cables operating up to 18 GHz.
Frequently Asked Questions
What is the primary application of the PS800L-18G coaxial cable?
PS800L-18G is designed for high-power, high-frequency RF transmission up to 18 GHz, including radar equipment, microwave test interconnects, broadcasting systems, and communication links requiring minimal attenuation and phase stability.
What insulation material is used in PS800L-18G?
It uses Low-Density PTFE (LD-PTFE), achieving a velocity of propagation of 76% while maintaining minimal dielectric loss across the 18 GHz spectrum.
What are the main physical dimensions of PS800L-18G?
The cable features a 1.88mm (19/0.38mm) stranded silver-plated copper inner conductor, a 5.55mm LD-PTFE dielectric, and an 8.00mm blue TPU outer jacket, with a static min bend radius of 30mm.
