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Antenna Reflector Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

An antenna reflector is a critical component in directional antenna systems that uses a precisely shaped metallic surface to reflect and concentrate electromagnetic waves toward the feed element. It functions as a passive element that enhances antenna gain, directivity, and signal-to-noise ratio by focusing incoming or outgoing radio frequency energy. Common configurations include parabolic dishes, corner reflectors, and shaped reflectors optimized for specific frequency bands and radiation patterns.

Working Principle

Operates on the principle of electromagnetic wave reflection, where incident radio waves strike the conductive surface and are reflected toward a focal point (in parabolic designs) or in a specific direction. The geometric shape determines the phase coherence and beamforming characteristics, converting spherical wavefronts into planar waves for transmission or focusing received signals onto the feed.

Materials

Typically aluminum alloys (e.g., 6061-T6) for lightweight durability, or steel with protective coatings for harsh environments. High-frequency applications may use carbon fiber composites or copper-clad laminates. Surface treatments include anodizing, galvanizing, or conductive paints to ensure consistent reflectivity and corrosion resistance.

Technical Parameters

Gain 30-50 dBi (typical parabolic)
Weight 5-5000 kg depending on size
Wind Load Up to 200 km/h survival
Polarization Linear or Circular
Diameter/Range 0.5m to 30m
Frequency Range UHF to Ku-band (300 MHz to 18 GHz)
Surface Accuracy ≤0.1mm RMS (for Ka-band)

Standards

ISO 1101, DIN 7186, IEEE 149

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Antenna Reflector.

Parent Products

This component is used in the following industrial products

Antenna Subsystem

The antenna subsystem is a critical component of satellite communication systems responsible for transmitting and receiving electromagnetic signals between the satellite and ground stations or other satellites.

View Product Details

Engineering Analysis

Risks & Mitigation

Surface deformation from thermal stress
Corrosion degrading reflectivity
Structural failure under high wind loads
Misalignment causing beam deviation

FMEA Triads

Trigger: Thermal expansion mismatch in composite materials
Failure: Surface distortion altering focal point
Mitigation: Use coefficient-matched materials and thermal coatings; implement active deformation compensation systems

Trigger: Salt spray or industrial corrosion
Failure: Increased surface roughness reducing reflectivity
Mitigation: Apply protective anodizing or conductive polymer coatings; specify marine-grade alloys

Trigger: Fatigue from wind-induced vibration
Failure: Crack propagation in support structure
Mitigation: Design with aerodynamic shapes; include dampers; follow IEC 61400-2 wind load standards

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Surface profile tolerance per ISO 1101: ±0.05mm for high-frequency applications

Test Method

Laser scanning or photogrammetry for surface verification; far-field pattern testing per IEEE 149

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of an antenna reflector?

To collect and concentrate electromagnetic signals, increasing antenna directivity and gain by reflecting waves toward the feed element.

How does surface accuracy affect performance?

Surface deviations must be less than 1/16 of the wavelength; inaccuracies cause phase errors, reducing gain and increasing sidelobes.

Can reflectors be used for both transmission and reception?

Yes, they are reciprocal components that enhance both outgoing and incoming signal efficiency through the same reflection principle.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Antenna Reflector