Structured Manufacturing Data (2026)

Feedhorn

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Feedhorn used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Feedhorn is characterized by the integration of Scalar Ring and Waveguide Transition. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A waveguide component that collects and directs microwave signals from a satellite dish reflector into the LNB.

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Product Specifications

Technical details and manufacturing context for Feedhorn

Definition
The feedhorn is a critical component of a Low-Noise Block Downconverter (LNB) assembly. It is a flared, horn-shaped antenna structure that sits at the focal point of a parabolic satellite dish. Its primary function is to efficiently collect the reflected microwave signals from the dish's surface and funnel them into the waveguide that leads to the LNB's low-noise amplifier. It is designed to match the impedance of free space to the waveguide, maximizing signal capture and minimizing losses and noise ingress.
Working Principle
The feedhorn operates on the principle of electromagnetic wave guidance. The parabolic dish reflector focuses incoming satellite signals to a point. The feedhorn, positioned at this focal point, captures these concentrated waves. Its flared shape acts as a transition between the open space and the narrower waveguide, efficiently coupling the radio frequency energy into the waveguide with minimal reflection and spillover loss, ensuring the signal is delivered to the LNB's receiver probes for processing.
Common Materials
Aluminum, Brass, Stainless Steel
Technical Parameters
  • The aperture diameter of the feedhorn, critical for matching the f/D ratio of the satellite dish to optimize signal focus and gain. (mm) Standard Spec
Components / BOM
  • Scalar Ring
    A corrugated ring surrounding the feedhorn aperture to improve illumination efficiency and reduce side-lobe interference by controlling the radiation pattern.
    Material: Aluminum
  • Waveguide Transition
    The section that connects the flared horn to the standard rectangular or circular waveguide, ensuring smooth impedance matching.
    Material: Brass or Aluminum
  • Mounting Flange Part
    Provides the mechanical interface for securely attaching the feedhorn to the LNB or support arm.
    Material: Stainless Steel or Aluminum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Feedhorn.

Feed Scalar Ring Feedhorn satellite dish feedhorn waveguide aluminum feedhorn for LNB scalar ring feedhorn assembly high-frequency microwave feedhorn durable stainless steel feedhorn

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Low-Noise Block Downconverter (LNB)
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure only (non-pressurized component)
other spec: Frequency range: 3.4-4.2 GHz (C-band), 10.7-12.75 GHz (Ku-band), VSWR <1.25:1, Insertion loss <0.2 dB
temperature: -40°C to +80°C (operational), -55°C to +100°C (storage)
Media Compatibility
✓ Satellite TV broadcast signals ✓ VSAT communication signals ✓ Weather satellite data transmission
Unsuitable: High-vibration industrial environments (e.g., rotating machinery, heavy vehicle mounting)
Sizing Data Required
  • Operating frequency band (GHz)
  • Antenna reflector diameter (meters)
  • Required polarization (linear/circular, single/dual)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion and pitting
Cause: Exposure to moisture, salt, or chemical contaminants in the feed material or environment, leading to material degradation and loss of signal integrity.
Mechanical deformation or misalignment
Cause: Impact from foreign objects, thermal expansion/contraction stresses, or improper installation, causing signal loss or beam pattern distortion.
Maintenance Indicators
  • Visible corrosion, pitting, or physical damage on the feedhorn surface
  • Sudden increase in system noise temperature or signal attenuation during operation
Engineering Tips
  • Apply protective coatings and implement regular cleaning schedules to prevent corrosion and contamination buildup
  • Install vibration dampeners and thermal expansion joints, and perform periodic alignment checks with precision instruments

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ANSI/ASME Y14.5 - Dimensioning and tolerancing DIN 7184 - Tolerances for linear dimensions
Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Surface flatness: 0.05mm
Quality Inspection
  • Dimensional verification using CMM
  • Surface finish inspection per ISO 1302

Factories Producing Feedhorn

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 a feedhorn in satellite systems?

A feedhorn collects and focuses microwave signals from the satellite dish reflector and directs them into the Low-Noise Block Downconverter (LNB) for signal processing.

Which materials are commonly used in feedhorn construction and why?

Feedhorns are typically made from aluminum, brass, or stainless steel for their durability, corrosion resistance, and excellent conductivity, ensuring efficient signal transmission in various environmental conditions.

What are the key components in a feedhorn assembly?

A standard feedhorn assembly includes a scalar ring for signal optimization, a waveguide transition for impedance matching, and a mounting flange for secure attachment to the LNB and dish structure.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

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.

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