PSE400L-34G-F 34GHz High Precision Phase Stable Coaxial Cable
34GHz Ultra-Stable Phase & Low Loss Coaxial Cable
The PSE400L-34G-F is an advanced 50 Ohm high-precision coaxial cable engineered for demanding microwave test and aerospace applications up to 34 GHz. Incorporating a specialized LD-PTFE interlayer alongside solid PTFE insulation, it delivers exceptional phase stability (±0.2 °/GHz) and amplitude consistency under dynamic flexing.
Max Frequency:DC-34GHz
Velocity of Prop.：70%
Screening Effectiveness: > 90 dB
Outer Diameter:4.2mm
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 |
| Interlayer | LD-PTFE (Low-Density PTFE) | 3.50 |
| Outer Shield | Silver Plated Copper Wire Braid | 3.85 |
| Jacket | Blue FEP | 4.20 |
Mechanical & Environmental Parameters
| Min. Bending Radius (Static) | 21.0 mm |
| Min. Bending Radius (Dynamic) | 42.0 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 | ±0.2 °/GHz |
| Amplitude Stability vs. Bending | ±0.03 dB @ 8GHz |
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 |
Precision Phase-Stable Replacement Option
The PSE400L-34G-F serves as an enhanced high-precision alternative to standard 400-class phase stable flexible coaxial assemblies, specifically recommended for test setups requiring strict amplitude and phase repeatability under motion.
Frequently Asked Questions
How does PSE400L-34G-F achieve higher phase stability than standard cables?
PSE400L-34G-F features a dedicated LD-PTFE (Low-Density PTFE) interlayer between its inner silver-plated strip shield and outer wire braid, reducing mechanical stress under bending and improving phase tolerance to ±0.2 °/GHz.
What is the amplitude stability rating under mechanical flexing?
This cable demonstrates outstanding amplitude stability rated at ±0.03 dB at 8 GHz during bending cycles.
What are the primary physical dimensions for cable connector assembly?
PSE400L-34G-F has an inner conductor diameter of 0.93 mm, dielectric diameter of 3.00 mm, and an overall outer diameter (Nom. O.D.) of 4.20 mm.
