PS400L-34G-F 34GHz Low Loss Phase Stable Coaxial Cable
34GHz Low Loss Phase Stable Flexible Coaxial Cable
The PS400L-34G-F is a premium-grade 50 Ohm flexible RF coaxial cable designed for high-frequency microwave applications up to 34 GHz. Built with a solid PTFE dielectric and double shielding structure, it delivers superior attenuation stability and exceptional phase consistency against mechanical bending.
Max Frequency:DC-34GHz
Velocity of Prop.：70%
Screening Effectiveness: > 90 dB
Outer Diameter:4.0mm
Structure & Construction Characteristics
| Layer / Structure | Material | Nom. O.D. (mm) |
|---|---|---|
| Inner Conductor | Silver Plated Copper (1/0.93 mm) | 0.93 |
| Insulation (Dielectric) | Solid PTFE | 3.00 |
| Inner Shield | Silver Plated Copper Strip | 3.20 |
| Outer Shield | Silver Plated Copper Wire Braid | 3.51 |
| Jacket | Blue FEP | 4.00 |
Mechanical & Environmental Parameters
| Min. Bending Radius (Static) | 20.0 mm |
| Min. Bending Radius (Dynamic) | 40.0 mm |
| Nominal Weight | 0.041 kg/m |
| Operating Temperature Range | -55 ℃ to +125 ℃ |
Electrical & Mechanical Characteristics
| Electrical Parameter | Standard Value |
|---|---|
| Impedance | 50 Ω |
| Max. Operating Frequency | 34 GHz |
| Velocity of Propagation (Velocity Ratio) | 70% |
| Capacitance | 94 pF/m |
| Screening Effectiveness | > 90 dB |
| Dielectric Withstanding Voltage | 1500 V DC |
| Phase Change vs. Bending | ±0.3 °/GHz |
Attenuation & Power Handling @ 25℃ & Sea Level
Insertion Loss Formula: IL = K1 * sqrt(F_MHz) + K2 * F_MHz (dB/100m)
Constants: K1 = 1.082677, K2 = 0.003337
| Frequency (MHz) | Nom. Attenuation (dB/100m @ 25℃) | Max. Power Handling (W @ 40℃) |
|---|---|---|
| 500 | 25.88 | 772 |
| 1000 | 37.57 | 532 |
| 2000 | 55.09 | 363 |
| 4000 | 81.82 | 244 |
| 6000 | 103.89 | 192 |
| 8000 | 123.53 | 162 |
| 10000 | 141.64 | 141 |
| 12400 | 161.94 | 123 |
| 16000 | 190.34 | 105 |
| 18000 | 205.32 | 97 |
| 26500 | 264.68 | 75 |
Cross Reference / Industry Replacement
The PS400L-34G-F offers direct technical replacement and equivalent performance for Tflex-402 series flexible coaxial cables while maintaining consistent electrical and mechanical integrity.
Frequently Asked Questions
What is the maximum operating frequency of PS400L-34G-F?
PS400L-34G-F is rated for high-frequency RF transmission up to 34 GHz with a 50 Ohm characteristic impedance.
What makes PS400L-34G-F suitable for phase-critical applications?
It utilizes a double-shield structure (silver-plated copper strip inner shield plus silver-plated wire braid) and solid PTFE insulation, achieving a minimal phase change vs. bending of ±0.3 °/GHz.
What cable model can PS400L-34G-F replace?
PS400L-34G-F is engineered as a direct equivalent to Tflex-402, matching its physical form factor and high-frequency attenuation performance.
