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Input Flange Component – Computer, Electronic and Optical Product Manufacturing

Q: What is the difference between input and output flanges in waveguide systems?

Input flanges are specifically designed for signal entry points with optimized impedance matching for incoming signals, while output flanges may have different configurations for signal transmission to antennas or other systems. Both require precise alignment but may have different sealing requirements.

Q: How do I select the right input flange for my waveguide application?

Consider frequency range, waveguide size (WR number), power handling requirements, environmental conditions, and mating component specifications. Always verify impedance matching and VSWR specifications for your specific frequency band.

Component Specifications

Definition

An input flange is a precision-engineered mechanical interface component designed to connect external transmission lines or antennas to waveguide systems. It ensures proper impedance matching, minimizes signal reflection, and maintains the structural integrity of the waveguide assembly while providing environmental sealing against moisture, dust, and electromagnetic interference.

Working Principle

The input flange operates by creating a mechanically stable and electrically continuous junction between the waveguide and external components. It uses precisely machined mating surfaces with alignment pins/slots to ensure accurate positioning, while conductive gaskets or choke grooves provide RF sealing to prevent signal leakage and maintain waveguide mode purity.

Materials

Aluminum alloy (6061-T6, 7075-T6), brass (C36000), stainless steel (304, 316), with silver or gold plating for enhanced conductivity. Dielectric materials: PTFE or ceramic for insulating components.

Technical Parameters

VSWR <1.15:1
Flange Type WR-284, WR-137, WR-90 (standard waveguide sizes)
Insertion Loss <0.1 dB
Mounting Holes 4-8 holes with M3-M6 threads
Surface Finish Ra < 0.8 μm
Frequency Range 1-40 GHz
Plating Thickness Silver: 5-10 μm, Gold: 1-3 μm

Standards

ISO 9001, IEC 60153, MIL-F-3922

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Input Flange.

Parent Products

This component is used in the following industrial products

Waveguide

A hollow metallic structure that guides electromagnetic waves from the feedhorn to the LNB's internal circuitry with minimal signal loss.

View Product Details

Engineering Analysis

Risks & Mitigation

Improper alignment causing signal reflection
Corrosion in humid environments
Mechanical stress from thermal expansion
Gasket degradation over time

FMEA Triads

Trigger: Incorrect torque application during installation
Failure: RF leakage and impedance mismatch
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications

Trigger: Corrosion due to environmental exposure
Failure: Increased insertion loss and potential arcing
Mitigation: Apply protective coatings and use corrosion-resistant materials

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.05 mm for critical dimensions, ±0.1° for angular alignment

Test Method

Vector network analyzer (VNA) testing for S-parameters, helium leak testing for sealing, coordinate measuring machine (CMM) for dimensional verification

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 difference between input and output flanges in waveguide systems?

Input flanges are specifically designed for signal entry points with optimized impedance matching for incoming signals, while output flanges may have different configurations for signal transmission to antennas or other systems. Both require precise alignment but may have different sealing requirements.

How do I select the right input flange for my waveguide application?

Consider frequency range, waveguide size (WR number), power handling requirements, environmental conditions, and mating component specifications. Always verify impedance matching and VSWR specifications for your specific frequency band.

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.

Input Flange