Phase Stability
Multi-Purpose
Cable Assemblies
Phase and amplitude stability against both flexure and temperature change — enabled by Junkosha's ePTFE tape wrapping technology. Genuine flexibility with no spring-back. Nine variants covering 18, 40, and 67 GHz, operating from -65 to +125 °C.
Built for Phase Stability in Any Application
The 7 Series E Type delivers reliable electrical performance — particularly phase and amplitude stability against temperature and bending — across a wide range of multi-purpose applications. Junkosha's proprietary ePTFE tape wrapping technology is the key to consistent phase behavior over the full -65 to +125 °C operating range.
The cables also provide genuine flexibility with no spring-back, making routing and installation stress-free for both operators and connected devices.
- ✓Phase & amplitude stability against flexure and temperature change
- ✓Junkosha ePTFE tape wrapping technology — consistent phase across thermal cycles
- ✓Genuine flexibility — no spring-back behavior
- ✓Nine variants: 18, 40, and 67 GHz across four OD sizes
- ✓OD range: 1.2 mm to 3.0 mm
- ✓Wide operating temperature: -65 to +125 °C
- ✓50 Ohm impedance — all variants
- ✓Phase matching and skew matching available as options
- ✓RoHS compliant
Phase Matching Options
Relative Matching
A set of two or more assemblies are made within a specified electrical length. The electrical length variation within the set is controlled — ideal for multi-port differential measurements.
Absolute Matching
Assemblies are made within a specified electrical length tolerance set as a standard. This enables ordering replacement cables individually while maintaining system-level phase accuracy.
E11 · E13 · E14 — Up to 18 GHz
Ultra-slim 1.2 mm — lightest at 5.1 g/m
2.2 mm OD — balanced size and loss
3.0 mm OD — lowest loss in 18 GHz group
E42 · E43 · E44 — Up to 40 GHz
Slim 1.8 mm — 40 GHz capable
2.2 mm OD — 40 GHz
3.0 mm OD — lowest loss in 40 GHz group
E61 · E62 · E63 — Up to 67 GHz
Ultra-slim 1.2 mm — 67 GHz, lightest at 5.1 g/m
1.8 mm OD — 67 GHz
2.2 mm OD — lowest loss in 67 GHz group
Technical Comparison — All 9 Variants
Typical values at 25 °C. All variants: 50 Ohm impedance, -65 to +125 °C, RoHS compliant.
| Model | Max Freq. | OD | Mass | VSWR | Ins. Loss (typ.) | Ins. Loss (max) | Vel. of Prop. | Bend Radius |
|---|---|---|---|---|---|---|---|---|
| E11 (047) | 18 GHz | 1.2 mm | 5.1 g/m | 1.43 | 6.3 dB/m | 7.0 dB/m | 79% | 10 mm |
| E13 (086) | 18 GHz | 2.2 mm | 12 g/m | 1.40 | 3.3 dB/m | 3.67 dB/m | 78% | 10 mm |
| E14 (120) | 18 GHz | 3.0 mm | 25 g/m | 1.40 | 2.4 dB/m | 2.6 dB/m | 80% | 15 mm |
| E42 (070) | 40 GHz | 1.8 mm | 10 g/m | 1.43 | 5.7 dB/m | 6.3 dB/m | 80% | 10 mm |
| E43 (086) | 40 GHz | 2.2 mm | 12 g/m | 1.43 | 5.2 dB/m | 5.9 dB/m | 78% | 10 mm |
| E44 (120) | 40 GHz | 3.0 mm | 25 g/m | 1.44 | 3.9 dB/m | 4.4 dB/m | 80% | 15 mm |
| E61 (047) | 67 GHz | 1.2 mm | 5.1 g/m | 1.43 | 13.9 dB/m | 15.6 dB/m | 79% | 10 mm |
| E62 (070) | 67 GHz | 1.8 mm | 10 g/m | 1.43 | 7.7 dB/m | 8.7 dB/m | 80% | 10 mm |
| E63 (086) | 67 GHz | 2.2 mm | 12 g/m | 1.40 | 7.2 dB/m | 8.0 dB/m | 78% | 10 mm |
* Typical values for reference only. Shielding effectiveness ≥90 dB to 18 GHz on all variants.
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.