Microwave & mmWave
Cable Assemblies
High phase stability against bending and temperature fluctuation. Seven frequency options from 26.5 GHz to 145 GHz. The standard for precision VNA measurements.

Phase Stability You Can Measure
The 0 Series cable assemblies offer exceptional phase stability against temperature fluctuations and bending. They are the industry benchmark for connecting to vector network analyzers (VNA) for precision measurement.
Cables are available in a wide range of frequencies: 26.5, 50, 67, 70, 110, 120 and 145 GHz with various connector options. All variants share the same 50 Ohm impedance, -30 to +85 C operating range, and are RoHS compliant.
- ✓Superior phase stability under bending and temperature change
- ✓Seven frequency variants up to 145 GHz
- ✓50 Ohm characteristic impedance across all variants
- ✓Velocity of propagation 74 to 79%
- ✓Armored and non-armored configurations available
- ✓Ships in 11 business days (15 for mm-wave variants)
- ✓RoHS compliant - all variants
Cable Construction
Cable Photography



7 Frequency Options
Select the variant that best matches your frequency and size requirements. Larger OD means lower insertion loss and higher power rating. Smaller OD means higher frequency support and better flexibility.
Technical Comparison
All specifications are typical values at 25 C and sea level. RoHS compliant. Characteristic impedance 50 Ohm on all variants.
| Model | Max Freq. | OD | Mass | VSWR | Ins. Loss | Prop. Delay | Vel. of Prop. | Min. Bend R. | Length Range |
|---|---|---|---|---|---|---|---|---|---|
| MWX021 | 26.5 GHz | 8.5 mm | 122 g/m | 1.33 | 2.0 dB/m | 4.21 ns/m | 79% | 30 mm | 700 - 1,500 mm |
| MWX051 | 50.0 GHz | 6.6 mm | 76 g/m | 1.46 | 4.6 dB/m | 4.19 ns/m | 79% | 30 mm | 700 - 1,500 mm |
| MWX061 | 67.0 GHz | 6.6 mm | 73 g/m | 1.46 | 7.3 dB/m | 4.35 ns/m | 77% | 30 mm | 700 - 1,500 mm |
| MWX071 | 70.0 GHz | 6.6 mm | 73 g/m | 1.46 | 7.5 dB/m | 4.35 ns/m | 77% | 30 mm | 700 - 1,500 mm |
| MWX001 | 110.0 GHz | 4.0 mm | 50 g/m | 1.43 | 11.8 dB/m | 4.2 ns/m | 79% | 15 mm | 100 - 200 mm |
| MWX002 | 120.0 GHz | 4.0 mm | 50 g/m | 1.43 | 14.5 dB/m | 4.2 ns/m | 79% | 15 mm | 100 - 200 mm |
| MWX004 | 145.0 GHz | 4.0 mm | 50 g/m | 1.50 | 28.1 dB/m | 4.5 ns/m | 74% | 20 mm | 100 - 200 mm |
* The above specifications are typical measured values for reference. Assembly length tolerance: +/- 10 mm for lengths up to 1,000 mm.
Simple Criteria for Cable Selection
All 0 Series cables share the same construction - the key differentiator is outer diameter.
Lower Insertion Loss
Choose a larger outer diameter cable
Higher Frequency
Choose a smaller outer diameter cable
Higher Power Rating
Choose a larger outer diameter cable
More Flexibility
Choose a smaller outer diameter cable
The EMF Series Family
The full EMF product family covers RF and microwave cable assemblies for every test and measurement application.
Ready to order or need technical advice?
Koto Electronics is the authorized Israeli representative of Junkosha Inc. Contact us for pricing, availability, and custom specifications.






