INDUSTRY COMPONENT

Input Flange

Input flange is a waveguide component that provides a secure, sealed connection for electromagnetic signal input into waveguide systems.

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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.

waveguide input flange RF flange connector microwave flange waveguide interface flange specifications Input Flange Input Flange in Computer, Electronic and Optical Product Manufacturing

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.

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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

Buyer Feedback

★★★★☆ 4.9 / 5.0 (32 reviews)

"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Input Flange arrived with full certification."

"Great transparency on the Input Flange components. Essential for our Computer, Electronic and Optical Product Manufacturing supply chain."

"The Input Flange we sourced perfectly fits our Computer, Electronic and Optical Product Manufacturing production line requirements."

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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.

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Input Connector/ Terminal Block Input Interface Circuit