PS400L-40G-F Phase Stable Coaxial Cable ( 40GHz)
40GHz High-Frequency Phase-Stable Coaxial Cable (LD-PTFE Dielectric)
Engineered for demanding RF and microwave applications, the PS400L-40G-F delivers exceptional phase stability (±0.2°/GHz) and superior shielding effectiveness (>90 dB) across a broad spectrum up to 40 GHz.
Max Frequency:DC-40GHz
Velocity of Prop.：77%
Phase Stability ：±0.2 °/GHz
Outer Diameter:4.0mm
Structure & Construction Characteristics
| Layer | Item / Material | Construction (mm) | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Silver Plated Copper (SPC) | 1 / 0.93 | 0.93 |
| Insulation | Low Density PTFE (LD-PTFE) | — | 2.75 |
| Inner Shield | Silver Plated Copper Strip | — | 2.95 |
| Outer Shield | Silver Plated Copper Braid | — | 3.35 |
| Jacket | Aqua FEP | — | 4.00 |
Mechanical & Environmental Parameters
| Min. Bending Radius (Static) | 16.00 mm | Weight | 0.036 kg/m |
|---|---|---|---|
| Min. Bending Radius (Dynamic) | 38.00 mm | Operating Temperature Range | -55 ℃ to +165 ℃ |
Electrical & Mechanical Characteristics
| Impedance | 50 Ω | Velocity of Propagation | 77% |
|---|---|---|---|
| Capacitance | 88 pF/m | Max Operating Frequency | 40 GHz |
| Screening Effectiveness | >90 dB | Dielectric Withstanding Voltage | 1000 V DC |
| Phase Change vs Bending | ±0.2 °/GHz | Phase Change vs Temperature (-45~+85℃) | ≤1500 PPM |
Attenuation & Power Handling @ 25℃ & Sea Level
Attenuation Calculation Formula:
IL = K1 * sqrt(F_MHz) + K2 * F_MHz | (K1 = 1.11183141, K2 = 0.000943596)
| Frequency (MHz) | Nom. Attenuation (dB/100m @ 25℃) | Max Power Handling (W @ 40℃) |
|---|---|---|
| 500 | 25.33 | 651 |
| 1000 | 36.10 | 457 |
| 2400 | 56.73 | 291 |
| 3000 | 63.73 | 259 |
| 6000 | 91.78 | 180 |
| 8000 | 106.99 | 154 |
| 10000 | 120.62 | 137 |
| 12400 | 135.51 | 122 |
| 18000 | 166.15 | 99 |
| 26500 | 206.00 | 80 |
| 40000 | 260.11 | 63 |
Industry Cross-Reference Interchangeability
The PS400L-40G-F offers direct functional and mechanical equivalence to standard industry micro-coaxial cable types including FA147A and 147-style phase stable cable assemblies.
Frequently Asked Questions
What dielectric material is utilized in the PS400L-40G-F cable to achieve phase stability?
The PS400L-40G-F incorporates Low Density PTFE (LD-PTFE), providing a velocity of propagation of 77% and phase stability of ±0.2 °/GHz during flexure.
What is the maximum insertion loss for this cable at 40 GHz?
Nominal attenuation at 40 GHz (40,000 MHz) is 260.11 dB/100m at sea level and 25℃ ambient temperature.
What type of shielding construction does PS400L-40G-F feature?
It uses a dual-shield structure featuring an inner silver-plated copper strip wrapped under an outer silver-plated copper wire braid, delivering >90 dB shielding effectiveness.
