Connected and Autonomous Vehicles
Automotive Radar Validation
Automotive radar operates at 76 to 81 GHz, where a connector is no longer a passive detail. Validating a radar module means measuring it accurately enough to trust the result — and at those frequencies the interface between the instrument and the module is often the largest uncertainty in the whole setup.
76–81 GHz
1.0mm
1.85mm
Phase-Stable
VNA Grade
76–81 GHz
Radar Band
DC–110 GHz
Coverage
≤1.1
Typical VSWR
Design Notes
Measuring a 77 GHz Module Honestly
Five factors that decide whether a radar validation result means anything.
01
Connector Band Edge
A connector rated to 67 GHz is not usable at 81 GHz, moded or not. The 1.0mm and 1.85mm series exist precisely because the band edge has to sit above the measurement, with margin.
02
Measurement Uncertainty
At millimetre-wave the interface repeatability often dominates the uncertainty budget. Improving the cable can do more for the result than improving the instrument.
03
Phase Stability
Angle-of-arrival and beam pattern measurement depend on phase. A cable whose phase moves when the fixture is repositioned invalidates the comparison between runs.
04
Torque Discipline
At these frequencies, connection torque changes the measurement. Repeatable results require a torque wrench and a procedure, not judgement.
05
Throughput
Validation runs thousands of scenarios. Mating cycle life determines how often the bench stops for a cable change.
Reference Data
Typical Validation Requirements
Bench requirements vary by programme. These are representative for 77 GHz radar work.
| Parameter | Typical Requirement | Relevant Series | Note |
|---|---|---|---|
| Frequency coverage | To 110 GHz | 1.0mm series | Margin above 81 GHz |
| Alternative coverage | To 67 GHz | 1.85mm series | Where 81 GHz margin allows |
| VSWR | ≤ 1.1 in band | Precision test series | Per series datasheet |
| Phase stability, flexure | ±3° typical | Phase-stable series | Decides run-to-run comparability |
| Torque | Per series specification | All precision series | Procedure, not judgement |
| Mating cycles | 5,000+ | NMD-terminated | Protects the analyser port |
Our Role
What We Supply for Radar Benches
01
Millimetre-Wave Precision
1.0mm and 1.85mm connectors with the band-edge margin 81 GHz work requires, characterised rather than assumed.
02
Bench Assemblies to Fixture
Phase-stable cables built to your fixture geometry, so nothing is strained or coiled around an obstacle.
03
Data With Every Unit
Measured performance per assembly, so the uncertainty budget is built on numbers rather than datasheet typicals.
Selected Products
Interfaces for Radar Validation
Typical starting points for 77 GHz bench work. Send us the analyser and the fixture and we will quote the set.
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1.0mm Male to 1.0mm Male Phase Stable Precision Test RF Cable Assembly – Use CFT150P Coax
$20.00 Add to cartQuick View -
1.0mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, 6.35mm Hole Spacing, 0.23mm Pin Diameter
$126.00 Add to cartQuick View -
1.85mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, 8.64mm Hole Spacing, 0.23mm Pin Diameter
Read moreQuick View -
NMD1.85 Female to NMD1.85 Male RF Adapter
$22.00 Add to cartQuick View
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Building a 77 GHz Bench?
Send us the analyser, the fixture and the frequency range, and our engineers will propose the assemblies and adapters.