VNA test cable: precision phase stability
The VNX Series (VNA coaxial cables) is engineered for precision microwave measurements and phase-stable environments. A silver-plated copper center conductor pairs with a microporous PTFE dielectric. This combination minimizes signal attenuation across broad frequency bands up to 67 GHz.
A helical silver-plated copper tape provides >90 dB shielding effectiveness. This structural design ensures consistent mechanical phase and amplitude stability. VNA test cable maintains electrical integrity during repeated bending cycles in test applications.
VNX series material specifications
Component | Material PDF | VNX-220 PDF | VNX-360 PDF | VNX-500 PDF | VNX-800 PDF |
Center Conductor | Silver Plated Copper | 0.51 mm | 0.91 mm | 1.45 mm | 2.30 mm |
Dielectric | Microporus PTFE | 1.40 mm | 2.45 mm | 3.95 mm | 6.10 mm |
Inner Shield | Helical SPC Tape | 1.55 mm | 2.65 mm | 4.10 mm | 6.42 mm |
Interlayer | PTFE | - | 2.85 mm | 4.35 mm | 4.62 mm |
Outer Braid | Silver Plated Copper Braid | 1.85 mm | 3.25 mm | 4.70 mm | 7.15 mm |
Jacket | FEP | 2.20 mm | 3.70 mm | 5.05 mm | 7.80 mm |
VNX series electrical specifications
Parameter | VNX-220 PDF | VNX-360 PDF | VNX-500 PDF | VNX-800 PDF |
Impedance | 50 Ω | 50 Ω | 50 Ω | 50 Ω |
Max Cut-off Frequency | 67 GHz | 40 GHz | 29 GHz | 18 GHz |
Velocity of Propagation (Vp) | 82% | 82% | 83% | 83% |
Shielding Effectiveness | >90 dB | >90 dB | >90 dB | >90 dB |
Permittivity | 1.49 | 1.49 | 1.45 | 1.45 |
Delay | 4.06 nS/m | 4.06 nS/m | 4.02 nS/m | 4.02 nS/m |
Capacitance | 81 pF/m | 81 pF/m | 80 pF/m | 80 pF/m |
Voltage Withstand (DC) | 500 V | 1000 V | 1500 V | 3000 V |
Peak Power | 1.2 KW | 2.5 KW | 5.6 KW | 10 KW |
VNX series mechanical & environmental specifications
Parameter | VNX-220 PDF | VNX-360 PDF | VNX-500 PDF | VNX-800 PDF |
Operating Temperature | -55 to +165 °C | -55 to +165 °C | -55 to +165 °C | -55 to +165 °C |
Bend Radius (Installation) | 10 mm | 15 mm | 25 mm | 36 mm |
Bend Radius (Repeated) | 22 mm | 36 mm | 50 mm | 78 mm |
Weight | 18 g/m | 32 g/m | 49 g/m | 131 g/m |
VNX series K1 & K2 constants by cable model
Cable Model | K1 Constant | K2 Constant |
VNX-220 | 3.042389 | 0.0000012 |
VNX-360 | 1.25998 | 0.0013655 |
VNX-500 | 0.89102 | 0.000425 |
VNX-800 | 0.456381 | 0.0003281 |
VNA coaxial cables performance curves
Review the empirical performance charts for VNA coaxial cable (VNX series) across frequency and temperature ranges.
