PS400-26.5G High Frequency Phase Stable Coaxial Cable (26.5GHz)
26.5Ghz Minibend-141 replacable High Frequency Low Loss Phase Stable Coaxial Cable
The PS400-26.5G is a robust 50 Ohm flexible coaxial cable designed for high-frequency RF applications up to 26.5 GHz. Built with a solid PTFE dielectric and triple shielding, it ensures consistent phase stability during flexure, outstanding electrical strength, and excellent RF isolation (>90 dB).
Max Frequency:26.5 GHz
Screening: >90 dB
Velocity of Prop.: 70%
Outer Diameter:4.0 mm
Structure & Construction Characteristics
| Structure Layer | Material | Construction (mm) | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Silver Plated Copper (SPC) | 1 / 0.93 | 0.93 |
| Insulation (Dielectric) | Solid PTFE | – | 3.00 |
| Inner Shield | Silver Plated Copper Strip | – | 3.20 |
| Interlayer Shield | High Temperature Aluminum Foil | – | 3.35 |
| Outer Shield | Alloy Wire Braid | – | 3.55 |
| Jacket | Green FEP | – | 4.00 |
Electrical & Mechanical Characteristics
| Impedance | 50 Ω | Max Operating Frequency | 26.5 GHz |
|---|---|---|---|
| Velocity of Propagation | 70% | Capacitance | 94 pF/m |
| Screening Effectiveness | >90 dB | Dielectric Withstanding Voltage | 1500 V DC |
| Phase Change vs. Bending | ±0.3 °/GHz | Phase Change vs. Temperature (-45°C to +85°C) | N/A |
| Min. Static Bending Radius | 20.0 mm | Min. Dynamic Bending Radius | 40.0 mm |
| Weight | 0.041 kg/m | Operating Temperature | -55°C to +125°C |
Attenuation & Power Handling @ 25℃ & Sea Level
Attenuation Formula: IL = K1 * sqrt(F_MHz) + K2 * F_MHz | K1 = 1.305096731, K2 = 0.003337
| Frequency (MHz) | Nominal Attenuation (dB/100m @ 25°C & Sea Level) | Max Power Handling (W @ 40°C & Sea Level) |
|---|---|---|
| 500 | 30.85 | 660 |
| 1000 | 44.61 | 456 |
| 2000 | 65.04 | 313 |
| 4000 | 95.89 | 212 |
| 6000 | 121.11 | 168 |
| 8000 | 143.43 | 142 |
| 10000 | 163.88 | 124 |
| 12400 | 186.71 | 109 |
| 16000 | 218.48 | 93 |
| 18000 | 235.16 | 87 |
| 26500 | 300.88 | 68 |
Cross Reference & Compatibility
The PS400-26.5G cable is designed as a direct commercial equivalent to standard .141-inch style phase stable coaxials, such as Minibend-141. It matches key industrial dimensions and offers solid performance for microwave links up to 26.5 GHz.
Frequently Asked Questions
What distinguishes PS400-26.5G from other 4.00mm phase stable cables?
PS400-26.5G uses a Solid-PTFE dielectric offering high dielectric strength (1500V DC) and stable mechanical performance up to 26.5 GHz, ideal for rugged RF interconnection applications.
How effective is the shielding structure on the PS400-26.5G?
With its triple-layer shielding (silver-plated copper strip, high-temp aluminum foil, and alloy braid), the cable guarantees over 90 dB screening effectiveness to prevent RF interference in complex electronic systems.
Is PS400-26.5G compatible with Huber+Suhner Minibend-141 assemblies?
Yes, PS400-26.5G provides identical form-factor compatibility and equivalent electrical characteristics to Minibend-141 up to 26.5 GHz, serving as a reliable alternative for test leads and internal system cabling.
