PS400L-34G High Frequency Low Loss Phase Stable Cable (34GHz)
34Ghz Minibend-141 High Frequency Low Loss Phase Stable Coaxial Cable
The PS400L-34G is a high-performance 50 Ohm flexible coaxial cable engineered for demanding RF applications up to 34 GHz. Constructed with low-density LD-PTFE dielectric and triple-layer shielding, it delivers exceptional phase stability under bending, low insertion loss, and reliable shielding effectiveness exceeding 90 dB.
Max Frequency:34 GHz
Screening: >90 dB
Velocity of Prop.: 76%
Outer Diameter:4.0 mm
Structure & Construction Characteristics
| Structure Layer | Material | Construction (mm) | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Silver Plated Copper (SPC) | 1 / 0.91 | 0.91 |
| Insulation (Dielectric) | LD-PTFE | – | 2.70 |
| Inner Shield | Silver Plated Copper Strip | – | 2.90 |
| Interlayer Shield | High Temperature Aluminum Foil | – | 3.05 |
| Outer Shield | Alloy Wire Braid | – | 3.45 |
| Jacket | Green FEP | – | 4.00 |
Electrical & Mechanical Characteristics
| Impedance | 50 Ω | Max Operating Frequency | 34 GHz |
|---|---|---|---|
| Velocity of Propagation | 76% | Capacitance | 88 pF/m |
| Screening Effectiveness | >90 dB | Dielectric Withstanding Voltage | 1200 V DC |
| Phase Change vs. Bending | ±0.3 °/GHz | Phase Change vs. Temperature (-45°C to +85°C) | N/A |
| Min. Static Bending Radius | 8.0 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: IAttenuation 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 PS400L-34G cable serves as a direct, high-reliability commercial alternative to standard .141-inch style high-frequency phase-stable cables (such as Minibend-141 series). It matches industry standards for low attenuation, triple-shielded 34 GHz RF interconnects.
Frequently Asked Questions
What is the primary advantage of the PS400L-34G cable?
The PS400L-34G offers low loss performance up to 34 GHz combined with low bend phase sensitivity (±0.3 °/GHz), making it ideal for high-frequency test interconnects, radar subsystems, and aerospace RF assemblies.
How does the triple shielding improve signal integrity?
Utilizing a silver-plated copper strip inner shield, high-temperature aluminum foil, and an alloy wire braid, the PS400L-34G achieves over 90 dB screening effectiveness, effectively preventing crosstalk and RF interference in high-density installations.
Can PS400L-34G replace industry standard Minibend-141 cables?
Yes, PS400L-34G is designed as a direct equivalent and replacement for standard .141-size high-frequency flexible cables like Minibend-141, featuring tight static bend radius (8.0 mm) and high mechanical resilience.
