Housing / Radome: Frequency_Range 24-79 GHz

Q: What is the difference between housing and radome in radar sensors?

The housing provides structural protection and environmental sealing for the entire sensor assembly, while the radome specifically covers and protects the antenna elements, requiring precise dielectric properties to minimize signal interference.

Q: How do material choices affect radar performance?

Material dielectric constant and loss tangent directly impact signal attenuation and phase distortion. Low-loss materials like PTFE composites minimize signal degradation, while conductive materials in housing provide EMI shielding without interfering with antenna function.

Q: What environmental standards apply to radar housings?

IP67/IP69K for water/dust ingress protection, ISO 16750 for automotive environmental testing, and temperature cycling standards ensure reliability in extreme conditions from -40°C to +85°C.

Component Specifications

Definition

A specialized enclosure system consisting of a structural housing and radome designed for radar sensors. The housing provides mechanical protection, environmental sealing, and thermal management for sensitive electronic components, while the radome (a portmanteau of radar and dome) is a dielectric cover that protects the antenna from physical damage and environmental factors while minimizing signal attenuation and distortion. This component ensures optimal radar performance by maintaining signal integrity, preventing interference, and protecting against moisture, dust, vibration, and temperature extremes.

Working Principle

The housing provides structural integrity and environmental protection through sealed enclosures and thermal management systems. The radome operates on electromagnetic principles, constructed from dielectric materials with specific permittivity and loss tangent values to allow radar waves to pass through with minimal reflection, absorption, or phase distortion. The geometry and material properties are engineered to match the radar's frequency band (typically 24 GHz, 77 GHz, or 79 GHz for automotive/industrial applications) while maintaining mechanical strength and weather resistance.

Materials

Housing: Aluminum alloys (6061-T6, 5052-H32) for lightweight strength and EMI shielding; Engineering plastics (PC-ABS, PBT-GF30) for cost-effective solutions; Stainless steel (304, 316) for corrosive environments. Radome: Low-loss dielectric materials with consistent electromagnetic properties: PTFE-based composites, Polycarbonate with anti-fog coatings, Fiberglass reinforced polymers (FRP), Ceramic-filled thermoplastics for millimeter-wave applications. Surface treatments: Conductive coatings for EMI/RFI shielding, Hydrophobic coatings for water repellency, UV-stabilized finishes.

Technical Parameters

Parameter	Typical range	Notes & selection driver
IP Rating	IP67/IP69K
EMI Shielding	>40 dB
Frequency Range	24-79 GHz
Impact Resistance	IK08
Signal Attenuation	<0.5 dB
Dielectric Constant	2.0-4.0
Flammability Rating	UL94 V-0
Operating Temperature	-40°C to +85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 16750, IEC 60529, SAE J1455, MIL-STD-810, DIN 40050

Parent Products

This component is used in the following industrial products

Radar Sensor

An electronic device that uses radio waves to detect, locate, and measure the distance, speed, and direction of objects.

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Engineering Analysis

Risks & Mitigation

Dielectric property degradation over time
Moisture ingress causing signal distortion
Thermal expansion mismatches
UV degradation of plastic materials
Impact damage to radome surface

FMEA Triads

Trigger: Material aging or UV exposure
Failure: Increased dielectric loss and signal attenuation
Mitigation: Use UV-stabilized materials with accelerated aging testing

Trigger: Seal failure or condensation
Failure: Moisture ingress causing electrical shorts or ice formation
Mitigation: Redundant sealing systems with hydrophobic coatings and desiccants

Trigger: Thermal stress from temperature cycling
Failure: Cracking or delamination of radome materials
Mitigation: CTE-matched materials and finite element analysis for thermal management

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Radome thickness tolerance ±0.1mm, Dielectric constant tolerance ±2%, Surface flatness <0.05mm over antenna area

Test Method

Vector network analyzer for S-parameter measurement, Environmental chamber testing per ISO 16750, EMI/EMC testing per CISPR 25, Salt spray testing per ASTM B117

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Housing / Radome

Manufacturer profiles associated with Housing / Radome.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between housing and radome in radar sensors?